Xen devel - Nov 2010 - xen guest not booting

Hi,

My xen guest stopped booting suddenly and giving me the below error
message.  Any idea what is going wrong here?  DOM 0 boots OK though.

ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/00:00:cd:ee:36/02:00:09:00:00/40 tag 0 ncq 262144 in
         res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/00:00:cd:ee:36/02:00:09:00:00/40 tag 0 ncq 262144 in
         res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x2 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/00:08:cd:ee:36/02:00:09:00:00/40 tag 1 ncq 262144 in
         res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/00:00:cd:ee:36/02:00:09:00:00/40 tag 0 ncq 262144 in
         res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/00:00:cd:ee:36/02:00:09:00:00/40 tag 0 ncq 262144 in
         res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/00:00:cd:ee:36/02:00:09:00:00/40 tag 0 ncq 262144 in
         res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
Descriptor sense data with sense descriptors (in hex):
end_request: I/O error, dev sda, sector 154595419
Buffer I/O error on device dm-2, logical block 2398177
Buffer I/O error on device dm-2, logical block 2398178
Buffer I/O error on device dm-2, logical block 2398179
Buffer I/O error on device dm-2, logical block 2398180
Buffer I/O error on device dm-2, logical block 2398181
Buffer I/O error on device dm-2, logical block 2398182
Buffer I/O error on device dm-2, logical block 2398183
Buffer I/O error on device dm-2, logical block 2398184
Buffer I/O error on device dm-2, logical block 2398185
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/00:00:e5:aa:37/02:00:09:00:00/40 tag 0 ncq 262144 in
         res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/00:00:e5:aa:37/02:00:09:00:00/40 tag 0 ncq 262144 in
         res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/00:08:e5:aa:37/02:00:09:00:00/40 tag 1 ncq 262144 in
         res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0xf SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/00:00:e5:aa:37/02:00:09:00:00/40 tag 0 ncq 262144 in
         res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0xd SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/00:18:e5:aa:37/02:00:09:00:00/40 tag 3 ncq 262144 in
         res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x7 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/00:00:e5:aa:37/02:00:09:00:00/40 tag 0 ncq 262144 in
         res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
Descriptor sense data with sense descriptors (in hex):
end_request: I/O error, dev sda, sector 154643600
__ratelimit: 6 callbacks suppressed
Buffer I/O error on device dm-2, logical block 2404200
Buffer I/O error on device dm-2, logical block 2404201
Buffer I/O error on device dm-2, logical block 2404202
Buffer I/O error on device dm-2, logical block 2404203
Buffer I/O error on device dm-2, logical block 2404204
Buffer I/O error on device dm-2, logical block 2404205
Buffer I/O error on device dm-2, logical block 2404206
Buffer I/O error on device dm-2, logical block 2404207
Buffer I/O error on device dm-2, logical block 2404208
Buffer I/O error on device dm-2, logical block 2404209
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144 in
         res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144 in
         res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144 in
         res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144 in
         res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144 in
         res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144 in
         res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
Descriptor sense data with sense descriptors (in hex):
end_request: I/O error, dev sda, sector 154644972
__ratelimit: 1 callbacks suppressed
Buffer I/O error on device dm-2, logical block 2404371
Buffer I/O error on device dm-2, logical block 2404372
Buffer I/O error on device dm-2, logical block 2404373
Buffer I/O error on device dm-2, logical block 2404374
Buffer I/O error on device dm-2, logical block 2404375
Buffer I/O error on device dm-2, logical block 2404376
Buffer I/O error on device dm-2, logical block 2404377
Buffer I/O error on device dm-2, logical block 2404378
Buffer I/O error on device dm-2, logical block 2404379
Buffer I/O error on device dm-2, logical block 2404380
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x2 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:08:e5:b1:37/00:00:09:00:00/40 tag 1 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
Descriptor sense data with sense descriptors (in hex):
end_request: I/O error, dev sda, sector 154644972
__ratelimit: 53 callbacks suppressed
Buffer I/O error on device dm-2, logical block 2404371
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:08:e5:b1:37/00:00:09:00:00/40 tag 1 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1f SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:08:e5:b1:37/00:00:09:00:00/40 tag 1 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
Descriptor sense data with sense descriptors (in hex):
end_request: I/O error, dev sda, sector 154644972
Buffer I/O error on device dm-2, logical block 2404371
ata5.00: exception Emask 0x0 SAct 0x7 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x5 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:10:e5:b1:37/00:00:09:00:00/40 tag 2 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1f SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x13 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:20:e5:b1:37/00:00:09:00:00/40 tag 4 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x7 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x7f SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:10:e5:b1:37/00:00:09:00:00/40 tag 2 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
Descriptor sense data with sense descriptors (in hex):
end_request: I/O error, dev sda, sector 154644972
Buffer I/O error on device dm-2, logical block 2404371
ata5.00: exception Emask 0x0 SAct 0xf SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0xf SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:18:e5:b1:37/00:00:09:00:00/40 tag 3 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0xf SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0xc SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:18:e5:b1:37/00:00:09:00:00/40 tag 3 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x7 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:08:e5:b1:37/00:00:09:00:00/40 tag 1 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
Descriptor sense data with sense descriptors (in hex):
end_request: I/O error, dev sda, sector 154644972
Buffer I/O error on device dm-2, logical block 2404371
ata5.00: exception Emask 0x0 SAct 0x2 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:08:e5:b1:37/00:00:09:00:00/40 tag 1 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
Descriptor sense data with sense descriptors (in hex):
end_request: I/O error, dev sda, sector 154644972
Buffer I/O error on device dm-2, logical block 2404371
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata5.00: irq_stat 0x40000008
ata5.00: failed command: READ FPDMA QUEUED
ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
         res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
ata5.00: status: { DRDY ERR }
ata5.00: error: { UNC }
Descriptor sense data with sense descriptors (in hex):
end_request: I/O error, dev sda, sector 154644972
Buffer I/O error on device dm-2, logical block 2404371

Thanks


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

This is a disk read problem.
Are you seeing this messages within the guest? In that case it might be
a problem with your backend.
What is your dom0 kernel? Is this a PV or an HVM guest?

On Fri, 12 Nov 2010, kishore kumar wrote:
> Hi,
>  
> My xen guest stopped booting suddenly and giving me the below error
message.  Any idea what is going wrong here?  DOM 0
> boots OK though.
>  
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/00:00:cd:ee:36/02:00:09:00:00/40 tag 0 ncq 262144 in
>          res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/00:00:cd:ee:36/02:00:09:00:00/40 tag 0 ncq 262144 in
>          res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x2 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/00:08:cd:ee:36/02:00:09:00:00/40 tag 1 ncq 262144 in
>          res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/00:00:cd:ee:36/02:00:09:00:00/40 tag 0 ncq 262144 in
>          res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/00:00:cd:ee:36/02:00:09:00:00/40 tag 0 ncq 262144 in
>          res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/00:00:cd:ee:36/02:00:09:00:00/40 tag 0 ncq 262144 in
>          res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> Descriptor sense data with sense descriptors (in hex):
> end_request: I/O error, dev sda, sector 154595419
> Buffer I/O error on device dm-2, logical block 2398177
> Buffer I/O error on device dm-2, logical block 2398178
> Buffer I/O error on device dm-2, logical block 2398179
> Buffer I/O error on device dm-2, logical block 2398180
> Buffer I/O error on device dm-2, logical block 2398181
> Buffer I/O error on device dm-2, logical block 2398182
> Buffer I/O error on device dm-2, logical block 2398183
> Buffer I/O error on device dm-2, logical block 2398184
> Buffer I/O error on device dm-2, logical block 2398185
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/00:00:e5:aa:37/02:00:09:00:00/40 tag 0 ncq 262144 in
>          res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/00:00:e5:aa:37/02:00:09:00:00/40 tag 0 ncq 262144 in
>          res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/00:08:e5:aa:37/02:00:09:00:00/40 tag 1 ncq 262144 in
>          res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0xf SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/00:00:e5:aa:37/02:00:09:00:00/40 tag 0 ncq 262144 in
>          res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0xd SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/00:18:e5:aa:37/02:00:09:00:00/40 tag 3 ncq 262144 in
>          res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x7 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/00:00:e5:aa:37/02:00:09:00:00/40 tag 0 ncq 262144 in
>          res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> Descriptor sense data with sense descriptors (in hex):
> end_request: I/O error, dev sda, sector 154643600
> __ratelimit: 6 callbacks suppressed
> Buffer I/O error on device dm-2, logical block 2404200
> Buffer I/O error on device dm-2, logical block 2404201
> Buffer I/O error on device dm-2, logical block 2404202
> Buffer I/O error on device dm-2, logical block 2404203
> Buffer I/O error on device dm-2, logical block 2404204
> Buffer I/O error on device dm-2, logical block 2404205
> Buffer I/O error on device dm-2, logical block 2404206
> Buffer I/O error on device dm-2, logical block 2404207
> Buffer I/O error on device dm-2, logical block 2404208
> Buffer I/O error on device dm-2, logical block 2404209
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144 in
>          res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144 in
>          res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144 in
>          res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144 in
>          res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144 in
>          res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144 in
>          res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> Descriptor sense data with sense descriptors (in hex):
> end_request: I/O error, dev sda, sector 154644972
> __ratelimit: 1 callbacks suppressed
> Buffer I/O error on device dm-2, logical block 2404371
> Buffer I/O error on device dm-2, logical block 2404372
> Buffer I/O error on device dm-2, logical block 2404373
> Buffer I/O error on device dm-2, logical block 2404374
> Buffer I/O error on device dm-2, logical block 2404375
> Buffer I/O error on device dm-2, logical block 2404376
> Buffer I/O error on device dm-2, logical block 2404377
> Buffer I/O error on device dm-2, logical block 2404378
> Buffer I/O error on device dm-2, logical block 2404379
> Buffer I/O error on device dm-2, logical block 2404380
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x2 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:08:e5:b1:37/00:00:09:00:00/40 tag 1 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> Descriptor sense data with sense descriptors (in hex):
> end_request: I/O error, dev sda, sector 154644972
> __ratelimit: 53 callbacks suppressed
> Buffer I/O error on device dm-2, logical block 2404371
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:08:e5:b1:37/00:00:09:00:00/40 tag 1 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1f SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:08:e5:b1:37/00:00:09:00:00/40 tag 1 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> Descriptor sense data with sense descriptors (in hex):
> end_request: I/O error, dev sda, sector 154644972
> Buffer I/O error on device dm-2, logical block 2404371
> ata5.00: exception Emask 0x0 SAct 0x7 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x5 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:10:e5:b1:37/00:00:09:00:00/40 tag 2 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1f SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x13 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:20:e5:b1:37/00:00:09:00:00/40 tag 4 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x7 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x7f SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:10:e5:b1:37/00:00:09:00:00/40 tag 2 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> Descriptor sense data with sense descriptors (in hex):
> end_request: I/O error, dev sda, sector 154644972
> Buffer I/O error on device dm-2, logical block 2404371
> ata5.00: exception Emask 0x0 SAct 0xf SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0xf SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:18:e5:b1:37/00:00:09:00:00/40 tag 3 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0xf SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0xc SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:18:e5:b1:37/00:00:09:00:00/40 tag 3 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x7 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:08:e5:b1:37/00:00:09:00:00/40 tag 1 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> Descriptor sense data with sense descriptors (in hex):
> end_request: I/O error, dev sda, sector 154644972
> Buffer I/O error on device dm-2, logical block 2404371
> ata5.00: exception Emask 0x0 SAct 0x2 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:08:e5:b1:37/00:00:09:00:00/40 tag 1 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> Descriptor sense data with sense descriptors (in hex):
> end_request: I/O error, dev sda, sector 154644972
> Buffer I/O error on device dm-2, logical block 2404371
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> ata5.00: irq_stat 0x40000008
> ata5.00: failed command: READ FPDMA QUEUED
> ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media error)
<F>
> ata5.00: status: { DRDY ERR }
> ata5.00: error: { UNC }
> Descriptor sense data with sense descriptors (in hex):
> end_request: I/O error, dev sda, sector 154644972
> Buffer I/O error on device dm-2, logical block 2404371
>  
> Thanks
>  
> 
> 
_______________________________________________
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I am seeing this problem while booting the guest.  The guest is a HVM.
My xen is 3.4.3-rc4-pre, and Dom0 kernel is 2.32.10 .
The dom0 boots perfectly fine.  While booting the HVM guest, I see hda
dma_timer_expiry dma status == 0x21 message on the linux shell and the
messages I posted earlier on my serial console.
Please suggest if anything can be done.

Thank YOu.
On Fri, Nov 12, 2010 at 4:42 AM, Stefano Stabellini <
stefano.stabellini@eu.citrix.com> wrote:
> This is a disk read problem.
> Are you seeing this messages within the guest? In that case it might be
> a problem with your backend.
> What is your dom0 kernel? Is this a PV or an HVM guest?
>
> On Fri, 12 Nov 2010, kishore kumar wrote:
> > Hi,
> >
> > My xen guest stopped booting suddenly and giving me the below error
> message.  Any idea what is going wrong here?  DOM 0
> > boots OK though.
> >
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/00:00:cd:ee:36/02:00:09:00:00/40 tag 0 ncq 262144 in
> >          res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/00:00:cd:ee:36/02:00:09:00:00/40 tag 0 ncq 262144 in
> >          res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x2 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/00:08:cd:ee:36/02:00:09:00:00/40 tag 1 ncq 262144 in
> >          res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/00:00:cd:ee:36/02:00:09:00:00/40 tag 0 ncq 262144 in
> >          res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/00:00:cd:ee:36/02:00:09:00:00/40 tag 0 ncq 262144 in
> >          res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/00:00:cd:ee:36/02:00:09:00:00/40 tag 0 ncq 262144 in
> >          res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > Descriptor sense data with sense descriptors (in hex):
> > end_request: I/O error, dev sda, sector 154595419
> > Buffer I/O error on device dm-2, logical block 2398177
> > Buffer I/O error on device dm-2, logical block 2398178
> > Buffer I/O error on device dm-2, logical block 2398179
> > Buffer I/O error on device dm-2, logical block 2398180
> > Buffer I/O error on device dm-2, logical block 2398181
> > Buffer I/O error on device dm-2, logical block 2398182
> > Buffer I/O error on device dm-2, logical block 2398183
> > Buffer I/O error on device dm-2, logical block 2398184
> > Buffer I/O error on device dm-2, logical block 2398185
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/00:00:e5:aa:37/02:00:09:00:00/40 tag 0 ncq 262144 in
> >          res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/00:00:e5:aa:37/02:00:09:00:00/40 tag 0 ncq 262144 in
> >          res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/00:08:e5:aa:37/02:00:09:00:00/40 tag 1 ncq 262144 in
> >          res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0xf SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/00:00:e5:aa:37/02:00:09:00:00/40 tag 0 ncq 262144 in
> >          res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0xd SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/00:18:e5:aa:37/02:00:09:00:00/40 tag 3 ncq 262144 in
> >          res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x7 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/00:00:e5:aa:37/02:00:09:00:00/40 tag 0 ncq 262144 in
> >          res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > Descriptor sense data with sense descriptors (in hex):
> > end_request: I/O error, dev sda, sector 154643600
> > __ratelimit: 6 callbacks suppressed
> > Buffer I/O error on device dm-2, logical block 2404200
> > Buffer I/O error on device dm-2, logical block 2404201
> > Buffer I/O error on device dm-2, logical block 2404202
> > Buffer I/O error on device dm-2, logical block 2404203
> > Buffer I/O error on device dm-2, logical block 2404204
> > Buffer I/O error on device dm-2, logical block 2404205
> > Buffer I/O error on device dm-2, logical block 2404206
> > Buffer I/O error on device dm-2, logical block 2404207
> > Buffer I/O error on device dm-2, logical block 2404208
> > Buffer I/O error on device dm-2, logical block 2404209
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144 in
> >          res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144 in
> >          res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144 in
> >          res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144 in
> >          res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144 in
> >          res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144 in
> >          res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > Descriptor sense data with sense descriptors (in hex):
> > end_request: I/O error, dev sda, sector 154644972
> > __ratelimit: 1 callbacks suppressed
> > Buffer I/O error on device dm-2, logical block 2404371
> > Buffer I/O error on device dm-2, logical block 2404372
> > Buffer I/O error on device dm-2, logical block 2404373
> > Buffer I/O error on device dm-2, logical block 2404374
> > Buffer I/O error on device dm-2, logical block 2404375
> > Buffer I/O error on device dm-2, logical block 2404376
> > Buffer I/O error on device dm-2, logical block 2404377
> > Buffer I/O error on device dm-2, logical block 2404378
> > Buffer I/O error on device dm-2, logical block 2404379
> > Buffer I/O error on device dm-2, logical block 2404380
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x2 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:08:e5:b1:37/00:00:09:00:00/40 tag 1 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > Descriptor sense data with sense descriptors (in hex):
> > end_request: I/O error, dev sda, sector 154644972
> > __ratelimit: 53 callbacks suppressed
> > Buffer I/O error on device dm-2, logical block 2404371
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:08:e5:b1:37/00:00:09:00:00/40 tag 1 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1f SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:08:e5:b1:37/00:00:09:00:00/40 tag 1 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > Descriptor sense data with sense descriptors (in hex):
> > end_request: I/O error, dev sda, sector 154644972
> > Buffer I/O error on device dm-2, logical block 2404371
> > ata5.00: exception Emask 0x0 SAct 0x7 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x5 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:10:e5:b1:37/00:00:09:00:00/40 tag 2 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1f SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x13 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:20:e5:b1:37/00:00:09:00:00/40 tag 4 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x7 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x7f SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:10:e5:b1:37/00:00:09:00:00/40 tag 2 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > Descriptor sense data with sense descriptors (in hex):
> > end_request: I/O error, dev sda, sector 154644972
> > Buffer I/O error on device dm-2, logical block 2404371
> > ata5.00: exception Emask 0x0 SAct 0xf SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0xf SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:18:e5:b1:37/00:00:09:00:00/40 tag 3 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0xf SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0xc SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:18:e5:b1:37/00:00:09:00:00/40 tag 3 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x7 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:08:e5:b1:37/00:00:09:00:00/40 tag 1 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > Descriptor sense data with sense descriptors (in hex):
> > end_request: I/O error, dev sda, sector 154644972
> > Buffer I/O error on device dm-2, logical block 2404371
> > ata5.00: exception Emask 0x0 SAct 0x2 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:08:e5:b1:37/00:00:09:00:00/40 tag 1 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > Descriptor sense data with sense descriptors (in hex):
> > end_request: I/O error, dev sda, sector 154644972
> > Buffer I/O error on device dm-2, logical block 2404371
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
> > ata5.00: irq_stat 0x40000008
> > ata5.00: failed command: READ FPDMA QUEUED
> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409 (media
> error) <F>
> > ata5.00: status: { DRDY ERR }
> > ata5.00: error: { UNC }
> > Descriptor sense data with sense descriptors (in hex):
> > end_request: I/O error, dev sda, sector 154644972
> > Buffer I/O error on device dm-2, logical block 2404371
> >
> > Thanks
> >
> >
> >
>

_______________________________________________
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Below is the complete HVM guest boot log I pasted.


Booting ''Red Hat Enterprise Linux Client (2.6.18-164.el5)''

root (hd0,0)

Filesystem type is ext2fs, partition type 0x83

kernel /vmlinuz-2.6.18-164.el5 ro root=/dev/VolGroup00/LogVol00
console=ttyS0,1

15200

[Linux-bzImage, setup=0x1e00, size=0x1d5c1c]

initrd /initrd-2.6.18-164.el5.img

[Linux-initrd @ 0x37cc0000, 0x32fc6c bytes]

Linux version 2.6.18-164.el5 (mockbuild@x86-003.build.bos.redhat.com) (gcc
version 4.1.2 20080704 (Red Hat 4.1.2-46)) #1 SMP Tue Aug 18 15:51:48 EDT
2009

Command line: ro root=/dev/VolGroup00/LogVol00 console=ttyS0,115200

BIOS-provided physical RAM map:

BIOS-e820: 0000000000010000 - 000000000009fc00 (usable)

BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)

BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)

BIOS-e820: 0000000000100000 - 0000000040000000 (usable)

BIOS-e820: 00000000fc000000 - 0000000100000000 (reserved)

DMI 2.4 present.

No NUMA configuration found

Faking a node at 0000000000000000-0000000040000000

Bootmem setup node 0 0000000000000000-0000000040000000

Memory for crash kernel (0x0 to 0x0) notwithin permissible range

disabling kdump

ACPI: PM-Timer IO Port: 0x1f48

ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)

Processor #0 7:10 APIC version 20

ACPI: IOAPIC (id[0x01] address[0xfec00000] gsi_base[0])

IOAPIC[0]: apic_id 1, version 17, address 0xfec00000, GSI 0-47

ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)

ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 low level)

ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 low level)

ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 low level)

Setting APIC routing to physical flat

Using ACPI (MADT) for SMP configuration information

Nosave address range: 000000000009f000 - 00000000000a0000

Nosave address range: 00000000000a0000 - 00000000000e0000

Nosave address range: 00000000000e0000 - 0000000000100000

Allocating PCI resources starting at 50000000 (gap: 40000000:bc000000)

SMP: Allowing 1 CPUs, 0 hotplug CPUs

Built 1 zonelists. Total pages: 257162

Kernel command line: ro root=/dev/VolGroup00/LogVol00 console=ttyS0,115200

Initializing CPU#0

PID hash table entries: 4096 (order: 12, 32768 bytes)

Console: colour VGA+ 80x25

Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)

Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)

Checking aperture...

ACPI: DMAR not present

Memory: 1023492k/1048576k available (2547k kernel code, 24632k reserved,
1289k data, 208k init)

Calibrating delay loop (skipped), value calculated using timer frequency..
4800.26 BogoMIPS (lpj=2400133)

Security Framework v1.0.0 initialized

SELinux: Initializing.

selinux_register_security: Registering secondary module capability

Capability LSM initialized as secondary

Mount-cache hash table entries: 256

CPU: L1 I cache: 32K, L1 D cache: 32K

CPU: L2 cache: 256K

CPU: L3 cache: 8192K

CPU: Physical Processor ID: 0

CPU: Processor Core ID: 0

SMP alternatives: switching to UP code

Freeing SMP alternatives: 32k freed

ACPI: Core revision 20060707

activating NMI Watchdog ... done.

Using local APIC timer interrupts.

result 6250122

Detected 6.250 MHz APIC timer.

Brought up 1 CPUs

testing NMI watchdog ... <4>WARNING: CPU#0: NMI appears to be stuck
(0->0)!

time.c: Using 3.579545 MHz WALL PM GTOD PIT/TSC timer.

time.c: Detected 2400.133 MHz processor.

checking if image is initramfs... it is

Freeing initrd memory: 3263k freed

NET: Registered protocol family 16

ACPI: bus type pci registered

PCI: Using configuration type 1

ACPI: Interpreter enabled

ACPI: Using IOAPIC for interrupt routing

ACPI: No dock devices found.

ACPI: PCI Root Bridge [PCI0] (0000:00)

PCI quirk: region 1f40-1f7f claimed by PIIX4 ACPI

ACPI: PCI Interrupt Link [LNKA] (IRQs *5 10 11)

ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11)

ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11)

ACPI: PCI Interrupt Link [LNKD] (IRQs *5 10 11)

Linux Plug and Play Support v0.97 (c) Adam Belay

pnp: PnP ACPI init

pnp: PnP ACPI: found 12 devices

usbcore: registered new driver usbfs

usbcore: registered new driver hub

PCI: Using ACPI for IRQ routing

PCI: If a device doesn''t work, try "pci=routeirq". If it
helps, post a
report

NetLabel: Initializing

NetLabel: domain hash size = 128

NetLabel: protocols = UNLABELED CIPSOv4

NetLabel: unlabeled traffic allowed by default

ACPI: DMAR not present

PCI-GART: No AMD northbridge found.

pnp: 00:02: ioport range 0x10c0-0x10e1 has been reserved

pnp: 00:02: ioport range 0xb044-0xb047 has been reserved

NET: Registered protocol family 2

IP route cache hash table entries: 32768 (order: 6, 262144 bytes)

TCP established hash table entries: 131072 (order: 9, 2097152 bytes)

TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)

TCP: Hash tables configured (established 131072 bind 65536)

TCP reno registered

audit: initializing netlink socket (disabled)

type=2000 audit(1289558513.835:1): initialized

Total HugeTLB memory allocated, 0

VFS: Disk quotas dquot_6.5.1

Dquot-cache hash table entries: 512 (order 0, 4096 bytes)

Initializing Cryptographic API

alg: No test for crc32c (crc32c-generic)

ksign: Installing public key data

Loading keyring

- Added public key 4BD2703D74512BB

- User ID: Red Hat, Inc. (Kernel Module GPG key)

io scheduler noop registered

io scheduler anticipatory registered

io scheduler deadline registered

io scheduler cfq registered (default)

Limiting direct PCI/PCI transfers.

PCI: PIIX3: Enabling Passive Release on 0000:00:01.0

Activating ISA DMA hang workarounds.

pci_hotplug: PCI Hot Plug PCI Core version: 0.5

Real Time Clock Driver v1.12ac

Non-volatile memory driver v1.2

Linux agpgart interface v0.101 (c) Dave Jones

Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled

�serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A

00:0a: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A

brd: module loaded

Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2

ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx

PIIX3: IDE controller at PCI slot 0000:00:01.1

PIIX3: chipset revision 0

PIIX3: not 100% native mode: will probe irqs later

ide0: BM-DMA at 0xc100-0xc107, BIOS settings: hda:pio, hdb:pio

ide1: BM-DMA at 0xc108-0xc10f, BIOS settings: hdc:pio, hdd:pio

hda: QEMU HARDDISK, ATA DISK drive

ide0 at 0x1f0-0x1f7,0x3f6 on irq 14

hda: max request size: 512KiB

hda: 65536000 sectors (33554 MB) w/256KiB Cache, CHS=16383/255/63, (U)DMA

hda: cache flushes supported

hda: hda1 hda2

ide-floppy driver 0.99.newide

usbcore: registered new driver hiddev

usbcore: registered new driver usbhid

drivers/usb/input/hid-core.c: v2.6:USB HID core driver

PNP: PS/2 Controller [PNP0303:PS2K,PNP0f13:PS2M] at 0x60,0x64 irq 1,12

serio: i8042 KBD port at 0x60,0x64 irq 1

serio: i8042 AUX port at 0x60,0x64 irq 12

mice: PS/2 mouse device common for all mice

md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27

md: bitmap version 4.39

TCP bic registered

Initializing IPsec netlink socket

NET: Registered protocol family 1

NET: Registered protocol family 17

ACPI: (supports S3 S4 S5)

Initalizing network drop monitor service

Freeing unused kernel memory: 208k freed

Write protecting the kernel read-only data: 496k

input: AT Translated Set 2 keyboard as /class/input/input0

Red Hat nash version 5.1.19.6 starting

Mounting proc filesystem

Mounting sysfs filesystem

Creating /dev

Creating initial device nodes

Setting up hotplug.

input: ImExPS/2 Generic Explorer Mouse as /class/input/input1

Creating block device nodes.

Loading ehci-hcd.ko module

Loading ohci-hcd.ko module

Loading uhci-hcd.ko module

USB Universal Host Controller Interface driver v3.0

Loading jbd.ko module

Loading ext3.ko module

Loading scsi_mod.ko module

SCSI subsystem initialized

Loading sd_mod.ko module

Loading libata.ko module

Loading ata_piix.ko module

Loading dm-mod.ko module

device-mapper: uevent: version 1.0.3

device-mapper: ioctl: 4.11.5-ioctl (2007-12-12) initialised:
dm-devel@redhat.com

Loading dm-log.ko module

Loading dm-mirror.ko module

Loading dm-zero.ko module

Loading dm-snapshot.ko module

Loading dm-mem-cache.ko module

Loading dm-region_hash.ko module

Loading dm-message.ko module

Loading dm-raid45.ko module

device-mapper: dm-raid45: initialized v0.2594l

Waiting for driver initialization.

Scanning and configuring dmraid supported devices

Scanning logical volumes

Reading all physical volumes. This may take a while...

Found volume group "VolGroup00" using metadata type lvm2

Activating logical volumes

2 logical volume(s) in volume group "VolGroup00" now active

Trying to resume from /dev/VolGroup00/LogVol01

No suspend signature on swap, not resuming.

Creating root device.

Mounting root filesystem.

kjournald starting. Commit interval 5 seconds

EXT3-fs: mounted filesystem with ordered data mode.

Setting up other filesystems.

Setting up new root fs

no fstab.sys, mounting internal defaults

Switching to new root and running init.

unmounting old /dev

unmounting old /proc

unmounting old /sys

hda: dma_timer_expiry: dma status == 0x21

SELinux: Disabled at runtime.

type=1404 audit(1289558568.031:2): selinux=0 auid=4294967295 ses=4294967295

INIT: version 2.86 booting

Welcome to Red Hat Enterprise Linux Client

Press ''I'' to enter interactive startup.

Setting clock (utc): Fri Nov 12 02:42:42 PST 2010 [ OK ]

Starting udev: [ OK ]

Loading default keymap (us): [ OK ]
Setting hostname localhost.localdomain: [ OK ]

After this nothing comes up.  It stops here forever.
Thank You.


On Fri, Nov 12, 2010 at 9:23 AM, kishore kumar <bodkekumar@gmail.com>
wrote:
> I am seeing this problem while booting the guest.  The guest is a HVM.
> My xen is 3.4.3-rc4-pre, and Dom0 kernel is 2.32.10 .
> The dom0 boots perfectly fine.  While booting the HVM guest, I see hda
> dma_timer_expiry dma status == 0x21 message on the linux shell and the
> messages I posted earlier on my serial console.
> Please suggest if anything can be done.
>
> Thank YOu.
>   On Fri, Nov 12, 2010 at 4:42 AM, Stefano Stabellini <
> stefano.stabellini@eu.citrix.com> wrote:
>
>> This is a disk read problem.
>> Are you seeing this messages within the guest? In that case it might be
>> a problem with your backend.
>> What is your dom0 kernel? Is this a PV or an HVM guest?
>>
>> On Fri, 12 Nov 2010, kishore kumar wrote:
>> > Hi,
>> >
>> > My xen guest stopped booting suddenly and giving me the below
error
>> message.  Any idea what is going wrong here?  DOM 0
>> > boots OK though.
>> >
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/00:00:cd:ee:36/02:00:09:00:00/40 tag 0 ncq 262144
in
>> >          res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/00:00:cd:ee:36/02:00:09:00:00/40 tag 0 ncq 262144
in
>> >          res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x2 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/00:08:cd:ee:36/02:00:09:00:00/40 tag 1 ncq 262144
in
>> >          res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/00:00:cd:ee:36/02:00:09:00:00/40 tag 0 ncq 262144
in
>> >          res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/00:00:cd:ee:36/02:00:09:00:00/40 tag 0 ncq 262144
in
>> >          res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/00:00:cd:ee:36/02:00:09:00:00/40 tag 0 ncq 262144
in
>> >          res 51/40:72:5b:f0:36/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > Descriptor sense data with sense descriptors (in hex):
>> > end_request: I/O error, dev sda, sector 154595419
>> > Buffer I/O error on device dm-2, logical block 2398177
>> > Buffer I/O error on device dm-2, logical block 2398178
>> > Buffer I/O error on device dm-2, logical block 2398179
>> > Buffer I/O error on device dm-2, logical block 2398180
>> > Buffer I/O error on device dm-2, logical block 2398181
>> > Buffer I/O error on device dm-2, logical block 2398182
>> > Buffer I/O error on device dm-2, logical block 2398183
>> > Buffer I/O error on device dm-2, logical block 2398184
>> > Buffer I/O error on device dm-2, logical block 2398185
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/00:00:e5:aa:37/02:00:09:00:00/40 tag 0 ncq 262144
in
>> >          res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/00:00:e5:aa:37/02:00:09:00:00/40 tag 0 ncq 262144
in
>> >          res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/00:08:e5:aa:37/02:00:09:00:00/40 tag 1 ncq 262144
in
>> >          res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0xf SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/00:00:e5:aa:37/02:00:09:00:00/40 tag 0 ncq 262144
in
>> >          res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0xd SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/00:18:e5:aa:37/02:00:09:00:00/40 tag 3 ncq 262144
in
>> >          res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x7 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/00:00:e5:aa:37/02:00:09:00:00/40 tag 0 ncq 262144
in
>> >          res 51/40:55:90:ac:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > Descriptor sense data with sense descriptors (in hex):
>> > end_request: I/O error, dev sda, sector 154643600
>> > __ratelimit: 6 callbacks suppressed
>> > Buffer I/O error on device dm-2, logical block 2404200
>> > Buffer I/O error on device dm-2, logical block 2404201
>> > Buffer I/O error on device dm-2, logical block 2404202
>> > Buffer I/O error on device dm-2, logical block 2404203
>> > Buffer I/O error on device dm-2, logical block 2404204
>> > Buffer I/O error on device dm-2, logical block 2404205
>> > Buffer I/O error on device dm-2, logical block 2404206
>> > Buffer I/O error on device dm-2, logical block 2404207
>> > Buffer I/O error on device dm-2, logical block 2404208
>> > Buffer I/O error on device dm-2, logical block 2404209
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144
in
>> >          res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144
in
>> >          res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144
in
>> >          res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144
in
>> >          res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144
in
>> >          res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/00:00:dd:b1:37/02:00:09:00:00/40 tag 0 ncq 262144
in
>> >          res 51/40:f1:ec:b1:37/d9:01:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > Descriptor sense data with sense descriptors (in hex):
>> > end_request: I/O error, dev sda, sector 154644972
>> > __ratelimit: 1 callbacks suppressed
>> > Buffer I/O error on device dm-2, logical block 2404371
>> > Buffer I/O error on device dm-2, logical block 2404372
>> > Buffer I/O error on device dm-2, logical block 2404373
>> > Buffer I/O error on device dm-2, logical block 2404374
>> > Buffer I/O error on device dm-2, logical block 2404375
>> > Buffer I/O error on device dm-2, logical block 2404376
>> > Buffer I/O error on device dm-2, logical block 2404377
>> > Buffer I/O error on device dm-2, logical block 2404378
>> > Buffer I/O error on device dm-2, logical block 2404379
>> > Buffer I/O error on device dm-2, logical block 2404380
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x2 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:08:e5:b1:37/00:00:09:00:00/40 tag 1 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > Descriptor sense data with sense descriptors (in hex):
>> > end_request: I/O error, dev sda, sector 154644972
>> > __ratelimit: 53 callbacks suppressed
>> > Buffer I/O error on device dm-2, logical block 2404371
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:08:e5:b1:37/00:00:09:00:00/40 tag 1 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1f SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:08:e5:b1:37/00:00:09:00:00/40 tag 1 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > Descriptor sense data with sense descriptors (in hex):
>> > end_request: I/O error, dev sda, sector 154644972
>> > Buffer I/O error on device dm-2, logical block 2404371
>> > ata5.00: exception Emask 0x0 SAct 0x7 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x5 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:10:e5:b1:37/00:00:09:00:00/40 tag 2 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1f SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x13 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:20:e5:b1:37/00:00:09:00:00/40 tag 4 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x7 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x7f SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:10:e5:b1:37/00:00:09:00:00/40 tag 2 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > Descriptor sense data with sense descriptors (in hex):
>> > end_request: I/O error, dev sda, sector 154644972
>> > Buffer I/O error on device dm-2, logical block 2404371
>> > ata5.00: exception Emask 0x0 SAct 0xf SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0xf SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:18:e5:b1:37/00:00:09:00:00/40 tag 3 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0xf SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0xc SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:18:e5:b1:37/00:00:09:00:00/40 tag 3 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x7 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:08:e5:b1:37/00:00:09:00:00/40 tag 1 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > Descriptor sense data with sense descriptors (in hex):
>> > end_request: I/O error, dev sda, sector 154644972
>> > Buffer I/O error on device dm-2, logical block 2404371
>> > ata5.00: exception Emask 0x0 SAct 0x2 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:08:e5:b1:37/00:00:09:00:00/40 tag 1 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > Descriptor sense data with sense descriptors (in hex):
>> > end_request: I/O error, dev sda, sector 154644972
>> > Buffer I/O error on device dm-2, logical block 2404371
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
>> > ata5.00: irq_stat 0x40000008
>> > ata5.00: failed command: READ FPDMA QUEUED
>> > ata5.00: cmd 60/08:00:e5:b1:37/00:00:09:00:00/40 tag 0 ncq 4096 in
>> >          res 51/40:01:ec:b1:37/d9:00:09:00:00/40 Emask 0x409
(media
>> error) <F>
>> > ata5.00: status: { DRDY ERR }
>> > ata5.00: error: { UNC }
>> > Descriptor sense data with sense descriptors (in hex):
>> > end_request: I/O error, dev sda, sector 154644972
>> > Buffer I/O error on device dm-2, logical block 2404371
>> >
>> > Thanks
>> >
>> >
>> >
>>
>
>

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On Fri, Nov 12, 2010 at 09:23:54AM -0800, kishore kumar
wrote:
> I am seeing this problem while booting the guest.  The guest is a HVM.
> My xen is 3.4.3-rc4-pre, and Dom0 kernel is 2.32.10 .
> The dom0 boots perfectly fine.  While booting the HVM guest, I see hda
> dma_timer_expiry dma status == 0x21 message on the linux shell and the
> messages I posted earlier on my serial console.
Where is the guest disk located? Is it a file on your machine? Did you
try to move it to another partition?
> Please suggest if anything can be done.
Get a new hard-drive, your hard-drive is failing.

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dom0 and the guest uses the same hard disk with partioned.

guest uses the command disk = [ ''phy:/dev/VolGroup01/hvm, hda,
w''  ]

I did not move the partition.


On Fri, Nov 12, 2010 at 9:59 AM, Konrad Rzeszutek Wilk <
konrad.wilk@oracle.com> wrote:
> On Fri, Nov 12, 2010 at 09:23:54AM -0800, kishore kumar wrote:
> > I am seeing this problem while booting the guest.  The guest is a HVM.
> > My xen is 3.4.3-rc4-pre, and Dom0 kernel is 2.32.10 .
> > The dom0 boots perfectly fine.  While booting the HVM guest, I see hda
> > dma_timer_expiry dma status == 0x21 message on the linux shell and the
> > messages I posted earlier on my serial console.
>
> Where is the guest disk located? Is it a file on your machine? Did you
> try to move it to another partition?
>
> > Please suggest if anything can be done.
>
> Get a new hard-drive, your hard-drive is failing.
>

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On Fri, Nov 12, 2010 at 10:16:09AM -0800, kishore kumar
wrote:
> dom0 and the guest uses the same hard disk with partioned.
> 
> guest uses the command disk = [ ''phy:/dev/VolGroup01/hvm, hda,
w''  ]
> 
> I did not move the partition.
Make a new one and copy (dd) the guest in that and see if the problem shows up.

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