Hi Konrad
I encountered a bug when trying to bring offline a cpu then online it
again in HVM. As I''m not very familiar with HVM stuffs I cannot come up
with a quick fix.
The HVM DomU is configured with 4 vcpus. After booting into command
prompt, I do following operations.
# echo 0 > /sys/devices/system/cpu/cpu3/online
# echo 1 > /sys/devices/system/cpu/cpu3/online
With Debian''s default 2.6.32-5-amd64 kernel, the last log is:
Booting processor 3 APIC 0x6 ip 0x6000
With my own kernel which is of version 3.5, I''m able to get more logs:
[ 44.047358] Booting Node 0 Processor 3 APIC 0x6
[ 44.061201] ------------[ cut here ]------------
[ 44.065186] kernel BUG at kernel/hrtimer.c:1259!
[ 44.065186] invalid opcode: 0000 [#1] SMP
[ 44.065186] CPU 3
[ 44.065186] Modules linked in:
[ 44.065186]
[ 44.065186] Pid: 0, comm: swapper/3 Not tainted 3.5.0-xen-evtchn+ #50 Xen HVM
domU
[ 44.065186] RIP: 0010:[<ffffffff8105682e>] [<ffffffff8105682e>]
hrtimer_interrupt+0x24/0x1a5
[ 44.065186] RSP: 0000:ffff88000f463de8 EFLAGS: 00010046
[ 44.065186] RAX: ffffffff8105680a RBX: ffff88000f46e640 RCX: 00000000fffffffa
[ 44.065186] RDX: 00000000fffffffa RSI: 0000000000000000 RDI: ffff88000f46bd80
[ 44.065186] RBP: 0000000000000057 R08: ffff88000e000b40 R09: 0000000000000019
[ 44.065186] R10: 0000000000000000 R11: 0000000000000001 R12: ffff88000e6e8e00
[ 44.065186] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
[ 44.065186] FS: 0000000000000000(0000) GS:ffff88000f460000(0000)
knlGS:0000000000000000
[ 44.065186] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 44.065186] CR2: 0000000000000000 CR3: 000000000181b000 CR4: 00000000000007e0
[ 44.065186] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 44.065186] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 44.065186] Process swapper/3 (pid: 0, threadinfo ffff88000e62e000, task
ffff88000e62aea0)
[ 44.065186] Stack:
[ 44.065186] 0000000000000001 ffff88000f46e680 ffffffff81013711
00000008cfba9b27
[ 44.065186] 00000000fffffffa ffff88000e6e97c0 0000000000000057
ffff88000e6e8e00
[ 44.065186] 0000000000000000 0000000000000001 0000000000000000
ffffffff81006954
[ 44.065186] Call Trace:
[ 44.065186] <IRQ>
[ 44.065186] [<ffffffff81013711>] ? paravirt_sched_clock+0x5/0x8
[ 44.065186] [<ffffffff81006954>] ? xen_timer_interrupt+0x26/0x162
[ 44.065186] [<ffffffff8109a220>] ?
check_for_new_grace_period.isra.32+0x90/0x9a
[ 44.065186] [<ffffffff810956df>] ? handle_irq_event_percpu+0x32/0x1b0
[ 44.065186] [<ffffffff8128f88b>] ? irq_get_handler_data+0x7/0x16
[ 44.065186] [<ffffffff81097e39>] ? handle_percpu_irq+0x3a/0x4f
[ 44.065186] [<ffffffff8128f9ec>] ?
__xen_evtchn_do_upcall_l2+0x131/0x1c0
[ 44.065186] [<ffffffff812913d3>] ? xen_evtchn_do_upcall+0x27/0x37
[ 44.065186] [<ffffffff8140081a>] ? xen_hvm_callback_vector+0x6a/0x70
[ 44.065186] <EOI>
[ 44.065186] [<ffffffff81094b8f>] ? cpumask_next+0x17/0x19
[ 44.065186] [<ffffffff813eb75b>] ? start_secondary+0x184/0x1e2
[ 44.065186] [<ffffffff813eb757>] ? start_secondary+0x180/0x1e2
[ 44.065186] [<ffffffff813eb5d7>] ? set_cpu_sibling_map+0x40e/0x40e
[ 44.065186] Code: 41 5d 41 5e 41 5f c3 41 57 41 56 41 55 41 54 55 53 48 c7 c3
40 e6 00 00 48 83 ec 28 65 48 03 1c 25 e8 db 00 00 83 7b 18 00 75 02 <0f>
0b 48
ff 43 20 48 bd ff ff ff ff ff ff ff 7f 41 be 03 00 00
[ 44.065186] RIP [<ffffffff8105682e>] hrtimer_interrupt+0x24/0x1a5
[ 44.065186] RSP <ffff88000f463de8>
[ 44.065186] ---[ end trace 9366352b116a03db ]---
[ 44.065186] Kernel panic - not syncing: Fatal exception in interrupt
And if I offline online cpu 2 in 2.6.32-5-amd64:
[ 27.933928] Booting processor 2 APIC 0x4 ip 0x6000
[ 25.708098] Initializing CPU#2
[ 25.708098] CPU: L1 I cache: 32K, L1 D cache: 32K
[ 25.708098] CPU: L2 cache: 6144K
[ 25.708098] CPU 2/0x4 -> Node 0
[ 25.708098] CPU: Physical Processor ID: 0
[ 25.708098] CPU: Processor Core ID: 4
[ 28.028234] CPU2: Intel(R) Core(TM)2 Quad CPU Q9450 @ 2.66GHz stepping 07
[ 28.069320] checking TSC synchronization [CPU#0 -> CPU#2]: passed.
[ 25.708098] installing Xen timer for CPU 2
[ 28.098101] CPU0 attaching NULL sched-domain.
[ 28.098106] CPU1 attaching NULL sched-domain.
[ 28.098110] CPU3 attaching NULL sched-domain.
[ 28.098092] ------------[ cut here ]------------
[ 28.098092] WARNING: at
/build/buildd-linux-2.6_2.6.32-30-amd64-d4MbNM/linux-2.6-2.6.32/debian/build/source_amd64_none/kernel/irq/chip.c:88
unbind_from_irq+0
x147/0x159()
[ 28.098092] Hardware name: HVM domU
[ 28.144127] CPU0 attaching sched-domain:
[ 28.144131] domain 0: span 0-3 level CPU
[ 28.144133] groups: 0 1 2 3
[ 28.144139] CPU1 attaching sched-domain:
[ 28.144142] domain 0: span 0-3 level CPU
[ 28.144145] groups: 1 2 3 0
[ 28.144150] CPU2 attaching sched-domain:
[ 28.144152] domain 0: span 0-3 level CPU
[ 28.144155] groups: 2 3 0 1
[ 28.144160] CPU3 attaching sched-domain:
[ 28.144162] domain 0: span 0-3 level CPU
[ 28.144165] groups: 3 0 1 2
[ 28.209159] Destroying IRQ18 without calling free_irq
[ 28.215985] Modules linked in: loop parport_pc parport psmouse evdev
serio_raw snd_pcm snd_timer snd soundcore snd_page_alloc pcspkr i2c_piix4
i2c_core butto
n processor ext3 jbd mbcache ata_generic ata_piix libata floppy thermal
thermal_sys xen_blkfront scsi_mod [last unloaded: scsi_wait_scan]
[ 28.224050] Pid: 0, comm: swapper Not tainted 2.6.32-5-amd64 #1
[ 28.224050] Call Trace:
[ 28.224050] [<ffffffff811ef131>] ? unbind_from_irq+0x147/0x159
[ 28.224050] [<ffffffff811ef131>] ? unbind_from_irq+0x147/0x159
[ 28.224050] [<ffffffff8104dd7c>] ? warn_slowpath_common+0x77/0xa3
[ 28.224050] [<ffffffff8104de04>] ? warn_slowpath_fmt+0x51/0x59
[ 28.224050] [<ffffffff810e4493>] ? get_partial_node+0x15/0x85
[ 28.224050] [<ffffffff811966fd>] ? kvasprintf+0x41/0x68
[ 28.224050] [<ffffffff8109639e>] ? dynamic_irq_cleanup_x+0x4b/0xc2
[ 28.224050] [<ffffffff811ef131>] ? unbind_from_irq+0x147/0x159
[ 28.224050] [<ffffffff811ef5b7>] ? bind_virq_to_irqhandler+0x14c/0x15d
[ 28.224050] [<ffffffff8100df77>] ? xen_timer_interrupt+0x0/0x18d
[ 28.224050] [<ffffffff812f5121>] ? set_cpu_sibling_map+0x2f4/0x311
[ 28.224050] [<ffffffff8100df0d>] ? xen_setup_timer+0x55/0xa2
[ 28.224050] [<ffffffff8100df71>] ?
xen_hvm_setup_cpu_clockevents+0x17/0x1d
[ 28.224050] [<ffffffff812f52fc>] ? start_secondary+0x17c/0x185
[ 28.224050] ---[ end trace db1493923b5e103d ]---
The logs for cpu 2 in my 3.5 kernel is identical to those for cpu 3.
Wei.
Konrad Rzeszutek Wilk
2012-Dec-19 16:04 UTC
Re: HVM bug: system crashes after offline online a vcpu
On Thu, Dec 13, 2012 at 03:12:17PM +0000, Wei Liu wrote:> Hi Konrad > > I encountered a bug when trying to bring offline a cpu then online it > again in HVM. As I''m not very familiar with HVM stuffs I cannot come up > with a quick fix.I took your two patches that you posted and they are in v3.8 now. It seems that there are bugs in the offline/online code thought. I did this: # echo 0 > /sys/devices/system/cpu/cpu3/online # echo 1 > /sys/devices/system/cpu/cpu3/online With a PV guest and it blows up (with or without your patches). Have you seen something similar to this: [ 106.166795] BUG: scheduling while atomic: swapper/2/0/0x00000000 [ 106.167168] microcode: CPU2 sig=0x206a7, pf=0x2, revision=0x17 [ 106.167566] Modules linked in: sg sd_mod dm_multipath dm_mod xen_evtchn iscsi_boot_sysfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi scsi_mod libcrc32c crc32c radeon fbcon tileblit font bitblit softcursor ttm drm_kms_helper crc32c_intel xen_blkfront xen_netfront xen_fbfront fb_sys_fops sysimgblt sysfillrect syscopyarea xen_kbdfront xenfs xen_privcmd [last unloaded: dump_dma] [ 106.169286] Pid: 0, comm: swapper/2 Tainted: G O 3.5.0-rc3upstream-00139-gb1849b3-dirty #1 [ 106.170152] Call Trace: [ 106.170598] [<ffffffff8109bcbd>] __schedule_bug+0x4d/0x60 [ 106.171042] [<ffffffff815be0fc>] __schedule+0x69c/0x760 [ 106.171469] [<ffffffff815be284>] schedule+0x24/0x70 [ 106.171890] [<ffffffff8103fbe9>] cpu_idle+0xc9/0xe0 [ 106.172309] [<ffffffff81033e79>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 106.172726] [<ffffffff815b1c5d>] cpu_bringup_and_idle+0xe/0x10 [ 106.174533] BUG: scheduling while atomic: swapper/2/0/0x00000000 ?> > The HVM DomU is configured with 4 vcpus. After booting into command > prompt, I do following operations. > > > With Debian''s default 2.6.32-5-amd64 kernel, the last log is: > > Booting processor 3 APIC 0x6 ip 0x6000 > > With my own kernel which is of version 3.5, I''m able to get more logs: > > [ 44.047358] Booting Node 0 Processor 3 APIC 0x6 > [ 44.061201] ------------[ cut here ]------------ > [ 44.065186] kernel BUG at kernel/hrtimer.c:1259! > [ 44.065186] invalid opcode: 0000 [#1] SMP > [ 44.065186] CPU 3 > [ 44.065186] Modules linked in: > [ 44.065186] > [ 44.065186] Pid: 0, comm: swapper/3 Not tainted 3.5.0-xen-evtchn+ #50 Xen HVM domU > [ 44.065186] RIP: 0010:[<ffffffff8105682e>] [<ffffffff8105682e>] hrtimer_interrupt+0x24/0x1a5 > [ 44.065186] RSP: 0000:ffff88000f463de8 EFLAGS: 00010046 > [ 44.065186] RAX: ffffffff8105680a RBX: ffff88000f46e640 RCX: 00000000fffffffa > [ 44.065186] RDX: 00000000fffffffa RSI: 0000000000000000 RDI: ffff88000f46bd80 > [ 44.065186] RBP: 0000000000000057 R08: ffff88000e000b40 R09: 0000000000000019 > [ 44.065186] R10: 0000000000000000 R11: 0000000000000001 R12: ffff88000e6e8e00 > [ 44.065186] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 > [ 44.065186] FS: 0000000000000000(0000) GS:ffff88000f460000(0000) knlGS:0000000000000000 > [ 44.065186] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > [ 44.065186] CR2: 0000000000000000 CR3: 000000000181b000 CR4: 00000000000007e0 > [ 44.065186] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 44.065186] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > [ 44.065186] Process swapper/3 (pid: 0, threadinfo ffff88000e62e000, task ffff88000e62aea0) > [ 44.065186] Stack: > [ 44.065186] 0000000000000001 ffff88000f46e680 ffffffff81013711 00000008cfba9b27 > [ 44.065186] 00000000fffffffa ffff88000e6e97c0 0000000000000057 ffff88000e6e8e00 > [ 44.065186] 0000000000000000 0000000000000001 0000000000000000 ffffffff81006954 > [ 44.065186] Call Trace: > [ 44.065186] <IRQ> > [ 44.065186] [<ffffffff81013711>] ? paravirt_sched_clock+0x5/0x8 > [ 44.065186] [<ffffffff81006954>] ? xen_timer_interrupt+0x26/0x162 > [ 44.065186] [<ffffffff8109a220>] ? check_for_new_grace_period.isra.32+0x90/0x9a > [ 44.065186] [<ffffffff810956df>] ? handle_irq_event_percpu+0x32/0x1b0 > [ 44.065186] [<ffffffff8128f88b>] ? irq_get_handler_data+0x7/0x16 > [ 44.065186] [<ffffffff81097e39>] ? handle_percpu_irq+0x3a/0x4f > [ 44.065186] [<ffffffff8128f9ec>] ? __xen_evtchn_do_upcall_l2+0x131/0x1c0 > [ 44.065186] [<ffffffff812913d3>] ? xen_evtchn_do_upcall+0x27/0x37 > [ 44.065186] [<ffffffff8140081a>] ? xen_hvm_callback_vector+0x6a/0x70 > [ 44.065186] <EOI> > [ 44.065186] [<ffffffff81094b8f>] ? cpumask_next+0x17/0x19 > [ 44.065186] [<ffffffff813eb75b>] ? start_secondary+0x184/0x1e2 > [ 44.065186] [<ffffffff813eb757>] ? start_secondary+0x180/0x1e2 > [ 44.065186] [<ffffffff813eb5d7>] ? set_cpu_sibling_map+0x40e/0x40e > [ 44.065186] Code: 41 5d 41 5e 41 5f c3 41 57 41 56 41 55 41 54 55 53 48 c7 c3 40 e6 00 00 48 83 ec 28 65 48 03 1c 25 e8 db 00 00 83 7b 18 00 75 02 <0f> 0b 48 > ff 43 20 48 bd ff ff ff ff ff ff ff 7f 41 be 03 00 00 > [ 44.065186] RIP [<ffffffff8105682e>] hrtimer_interrupt+0x24/0x1a5 > [ 44.065186] RSP <ffff88000f463de8> > [ 44.065186] ---[ end trace 9366352b116a03db ]--- > [ 44.065186] Kernel panic - not syncing: Fatal exception in interrupt > > And if I offline online cpu 2 in 2.6.32-5-amd64: > > [ 27.933928] Booting processor 2 APIC 0x4 ip 0x6000 > [ 25.708098] Initializing CPU#2 > [ 25.708098] CPU: L1 I cache: 32K, L1 D cache: 32K > [ 25.708098] CPU: L2 cache: 6144K > [ 25.708098] CPU 2/0x4 -> Node 0 > [ 25.708098] CPU: Physical Processor ID: 0 > [ 25.708098] CPU: Processor Core ID: 4 > [ 28.028234] CPU2: Intel(R) Core(TM)2 Quad CPU Q9450 @ 2.66GHz stepping 07 > [ 28.069320] checking TSC synchronization [CPU#0 -> CPU#2]: passed. > [ 25.708098] installing Xen timer for CPU 2 > [ 28.098101] CPU0 attaching NULL sched-domain. > [ 28.098106] CPU1 attaching NULL sched-domain. > [ 28.098110] CPU3 attaching NULL sched-domain. > [ 28.098092] ------------[ cut here ]------------ > [ 28.098092] WARNING: at /build/buildd-linux-2.6_2.6.32-30-amd64-d4MbNM/linux-2.6-2.6.32/debian/build/source_amd64_none/kernel/irq/chip.c:88 unbind_from_irq+0 > x147/0x159() > [ 28.098092] Hardware name: HVM domU > [ 28.144127] CPU0 attaching sched-domain: > [ 28.144131] domain 0: span 0-3 level CPU > [ 28.144133] groups: 0 1 2 3 > [ 28.144139] CPU1 attaching sched-domain: > [ 28.144142] domain 0: span 0-3 level CPU > [ 28.144145] groups: 1 2 3 0 > [ 28.144150] CPU2 attaching sched-domain: > [ 28.144152] domain 0: span 0-3 level CPU > [ 28.144155] groups: 2 3 0 1 > [ 28.144160] CPU3 attaching sched-domain: > [ 28.144162] domain 0: span 0-3 level CPU > [ 28.144165] groups: 3 0 1 2 > [ 28.209159] Destroying IRQ18 without calling free_irq > [ 28.215985] Modules linked in: loop parport_pc parport psmouse evdev serio_raw snd_pcm snd_timer snd soundcore snd_page_alloc pcspkr i2c_piix4 i2c_core butto > n processor ext3 jbd mbcache ata_generic ata_piix libata floppy thermal thermal_sys xen_blkfront scsi_mod [last unloaded: scsi_wait_scan] > [ 28.224050] Pid: 0, comm: swapper Not tainted 2.6.32-5-amd64 #1 > [ 28.224050] Call Trace: > [ 28.224050] [<ffffffff811ef131>] ? unbind_from_irq+0x147/0x159 > [ 28.224050] [<ffffffff811ef131>] ? unbind_from_irq+0x147/0x159 > [ 28.224050] [<ffffffff8104dd7c>] ? warn_slowpath_common+0x77/0xa3 > [ 28.224050] [<ffffffff8104de04>] ? warn_slowpath_fmt+0x51/0x59 > [ 28.224050] [<ffffffff810e4493>] ? get_partial_node+0x15/0x85 > [ 28.224050] [<ffffffff811966fd>] ? kvasprintf+0x41/0x68 > [ 28.224050] [<ffffffff8109639e>] ? dynamic_irq_cleanup_x+0x4b/0xc2 > [ 28.224050] [<ffffffff811ef131>] ? unbind_from_irq+0x147/0x159 > [ 28.224050] [<ffffffff811ef5b7>] ? bind_virq_to_irqhandler+0x14c/0x15d > [ 28.224050] [<ffffffff8100df77>] ? xen_timer_interrupt+0x0/0x18d > [ 28.224050] [<ffffffff812f5121>] ? set_cpu_sibling_map+0x2f4/0x311 > [ 28.224050] [<ffffffff8100df0d>] ? xen_setup_timer+0x55/0xa2 > [ 28.224050] [<ffffffff8100df71>] ? xen_hvm_setup_cpu_clockevents+0x17/0x1d > [ 28.224050] [<ffffffff812f52fc>] ? start_secondary+0x17c/0x185 > [ 28.224050] ---[ end trace db1493923b5e103d ]--- > > The logs for cpu 2 in my 3.5 kernel is identical to those for cpu 3. > > > Wei. >
On Wed, 2012-12-19 at 16:04 +0000, Konrad Rzeszutek Wilk wrote:> On Thu, Dec 13, 2012 at 03:12:17PM +0000, Wei Liu wrote: > > Hi Konrad > > > > I encountered a bug when trying to bring offline a cpu then online it > > again in HVM. As I''m not very familiar with HVM stuffs I cannot come up > > with a quick fix. > > I took your two patches that you posted and they are in v3.8 now. > > It seems that there are bugs in the offline/online code thought. > > I did this: > # echo 0 > /sys/devices/system/cpu/cpu3/online > # echo 1 > /sys/devices/system/cpu/cpu3/online > > With a PV guest and it blows up (with or without your patches). > > Have you seen something similar to this: > > [ 106.166795] BUG: scheduling while atomic: swapper/2/0/0x00000000 > [ 106.167168] microcode: CPU2 sig=0x206a7, pf=0x2, revision=0x17 > [ 106.167566] Modules linked in: sg sd_mod dm_multipath dm_mod xen_evtchn iscsi_boot_sysfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi scsi_mod libcrc32c crc32c radeon fbcon tileblit font bitblit softcursor ttm drm_kms_helper crc32c_intel xen_blkfront xen_netfront xen_fbfront fb_sys_fops sysimgblt sysfillrect syscopyarea xen_kbdfront xenfs xen_privcmd [last unloaded: dump_dma] > [ 106.169286] Pid: 0, comm: swapper/2 Tainted: G O 3.5.0-rc3upstream-00139-gb1849b3-dirty #1 > [ 106.170152] Call Trace: > [ 106.170598] [<ffffffff8109bcbd>] __schedule_bug+0x4d/0x60 > [ 106.171042] [<ffffffff815be0fc>] __schedule+0x69c/0x760 > [ 106.171469] [<ffffffff815be284>] schedule+0x24/0x70 > [ 106.171890] [<ffffffff8103fbe9>] cpu_idle+0xc9/0xe0 > [ 106.172309] [<ffffffff81033e79>] ? xen_irq_enable_direct_reloc+0x4/0x4 > [ 106.172726] [<ffffffff815b1c5d>] cpu_bringup_and_idle+0xe/0x10 > [ 106.174533] BUG: scheduling while atomic: swapper/2/0/0x00000000 > ? >IIRC I didn''t see this. I was using your xen.git kernel tree, not the upstream one. The PV path was fixed after applying my patch and the HVM path I didn''t have much idea. I didn''t play much with online/offline after fixing what I could fix. Let me play with upstream kernel and give you some feedback. Wei
On Wed, 2012-12-19 at 16:04 +0000, Konrad Rzeszutek Wilk wrote:> On Thu, Dec 13, 2012 at 03:12:17PM +0000, Wei Liu wrote: > > Hi Konrad > > > > I encountered a bug when trying to bring offline a cpu then online it > > again in HVM. As I''m not very familiar with HVM stuffs I cannot come up > > with a quick fix. > > I took your two patches that you posted and they are in v3.8 now. > > It seems that there are bugs in the offline/online code thought. > > I did this: > # echo 0 > /sys/devices/system/cpu/cpu3/online > # echo 1 > /sys/devices/system/cpu/cpu3/online > > With a PV guest and it blows up (with or without your patches). > > Have you seen something similar to this: > > [ 106.166795] BUG: scheduling while atomic: swapper/2/0/0x00000000 > [ 106.167168] microcode: CPU2 sig=0x206a7, pf=0x2, revision=0x17 > [ 106.167566] Modules linked in: sg sd_mod dm_multipath dm_mod xen_evtchn iscsi_boot_sysfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi scsi_mod libcrc32c crc32c radeon fbcon tileblit font bitblit softcursor ttm drm_kms_helper crc32c_intel xen_blkfront xen_netfront xen_fbfront fb_sys_fops sysimgblt sysfillrect syscopyarea xen_kbdfront xenfs xen_privcmd [last unloaded: dump_dma] > [ 106.169286] Pid: 0, comm: swapper/2 Tainted: G O 3.5.0-rc3upstream-00139-gb1849b3-dirty #1Can you tell me which tree you''re using? I cannot find cs:gb1849b3 in my repository. Wei.
Konrad Rzeszutek Wilk
2012-Dec-19 17:40 UTC
Re: HVM bug: system crashes after offline online a vcpu
On Wed, Dec 19, 2012 at 05:01:57PM +0000, Wei Liu wrote:> On Wed, 2012-12-19 at 16:04 +0000, Konrad Rzeszutek Wilk wrote: > > On Thu, Dec 13, 2012 at 03:12:17PM +0000, Wei Liu wrote: > > > Hi Konrad > > > > > > I encountered a bug when trying to bring offline a cpu then online it > > > again in HVM. As I''m not very familiar with HVM stuffs I cannot come up > > > with a quick fix. > > > > I took your two patches that you posted and they are in v3.8 now. > > > > It seems that there are bugs in the offline/online code thought. > > > > I did this: > > # echo 0 > /sys/devices/system/cpu/cpu3/online > > # echo 1 > /sys/devices/system/cpu/cpu3/online > > > > With a PV guest and it blows up (with or without your patches). > > > > Have you seen something similar to this: > > > > [ 106.166795] BUG: scheduling while atomic: swapper/2/0/0x00000000 > > [ 106.167168] microcode: CPU2 sig=0x206a7, pf=0x2, revision=0x17 > > [ 106.167566] Modules linked in: sg sd_mod dm_multipath dm_mod xen_evtchn iscsi_boot_sysfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi scsi_mod libcrc32c crc32c radeon fbcon tileblit font bitblit softcursor ttm drm_kms_helper crc32c_intel xen_blkfront xen_netfront xen_fbfront fb_sys_fops sysimgblt sysfillrect syscopyarea xen_kbdfront xenfs xen_privcmd [last unloaded: dump_dma] > > [ 106.169286] Pid: 0, comm: swapper/2 Tainted: G O 3.5.0-rc3upstream-00139-gb1849b3-dirty #1 > > Can you tell me which tree you''re using? I cannot find cs:gb1849b3 in my > repository.Oh, .. that might have been me messing around. I would just do v3.7 and try that out.> > > Wei. >
On Wed, 2012-12-19 at 17:40 +0000, Konrad Rzeszutek Wilk wrote:> On Wed, Dec 19, 2012 at 05:01:57PM +0000, Wei Liu wrote: > > On Wed, 2012-12-19 at 16:04 +0000, Konrad Rzeszutek Wilk wrote: > > > On Thu, Dec 13, 2012 at 03:12:17PM +0000, Wei Liu wrote: > > > > Hi Konrad > > > > > > > > I encountered a bug when trying to bring offline a cpu then online it > > > > again in HVM. As I''m not very familiar with HVM stuffs I cannot come up > > > > with a quick fix. > > > > > > I took your two patches that you posted and they are in v3.8 now. > > > > > > It seems that there are bugs in the offline/online code thought. > > > > > > I did this: > > > # echo 0 > /sys/devices/system/cpu/cpu3/online > > > # echo 1 > /sys/devices/system/cpu/cpu3/online > > > > > > With a PV guest and it blows up (with or without your patches). > > > > > > Have you seen something similar to this: > > > > > > [ 106.166795] BUG: scheduling while atomic: swapper/2/0/0x00000000 > > > [ 106.167168] microcode: CPU2 sig=0x206a7, pf=0x2, revision=0x17 > > > [ 106.167566] Modules linked in: sg sd_mod dm_multipath dm_mod xen_evtchn iscsi_boot_sysfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi scsi_mod libcrc32c crc32c radeon fbcon tileblit font bitblit softcursor ttm drm_kms_helper crc32c_intel xen_blkfront xen_netfront xen_fbfront fb_sys_fops sysimgblt sysfillrect syscopyarea xen_kbdfront xenfs xen_privcmd [last unloaded: dump_dma] > > > [ 106.169286] Pid: 0, comm: swapper/2 Tainted: G O 3.5.0-rc3upstream-00139-gb1849b3-dirty #1 > > > > Can you tell me which tree you''re using? I cannot find cs:gb1849b3 in my > > repository. > > Oh, .. that might have been me messing around. I would just do v3.7 and > try that out. > >Just played with 3.7 several times, no oops so far. Wei.
Konrad Rzeszutek Wilk
2012-Dec-19 19:24 UTC
Re: HVM bug: system crashes after offline online a vcpu
On Wed, Dec 19, 2012 at 05:52:23PM +0000, Wei Liu wrote:> On Wed, 2012-12-19 at 17:40 +0000, Konrad Rzeszutek Wilk wrote: > > On Wed, Dec 19, 2012 at 05:01:57PM +0000, Wei Liu wrote: > > > On Wed, 2012-12-19 at 16:04 +0000, Konrad Rzeszutek Wilk wrote: > > > > On Thu, Dec 13, 2012 at 03:12:17PM +0000, Wei Liu wrote: > > > > > Hi Konrad > > > > > > > > > > I encountered a bug when trying to bring offline a cpu then online it > > > > > again in HVM. As I''m not very familiar with HVM stuffs I cannot come up > > > > > with a quick fix. > > > > > > > > I took your two patches that you posted and they are in v3.8 now. > > > > > > > > It seems that there are bugs in the offline/online code thought. > > > > > > > > I did this: > > > > # echo 0 > /sys/devices/system/cpu/cpu3/online > > > > # echo 1 > /sys/devices/system/cpu/cpu3/online > > > > > > > > With a PV guest and it blows up (with or without your patches). > > > > > > > > Have you seen something similar to this: > > > > > > > > [ 106.166795] BUG: scheduling while atomic: swapper/2/0/0x00000000 > > > > [ 106.167168] microcode: CPU2 sig=0x206a7, pf=0x2, revision=0x17 > > > > [ 106.167566] Modules linked in: sg sd_mod dm_multipath dm_mod xen_evtchn iscsi_boot_sysfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi scsi_mod libcrc32c crc32c radeon fbcon tileblit font bitblit softcursor ttm drm_kms_helper crc32c_intel xen_blkfront xen_netfront xen_fbfront fb_sys_fops sysimgblt sysfillrect syscopyarea xen_kbdfront xenfs xen_privcmd [last unloaded: dump_dma] > > > > [ 106.169286] Pid: 0, comm: swapper/2 Tainted: G O 3.5.0-rc3upstream-00139-gb1849b3-dirty #1 > > > > > > Can you tell me which tree you''re using? I cannot find cs:gb1849b3 in my > > > repository. > > > > Oh, .. that might have been me messing around. I would just do v3.7 and > > try that out. > > > > > Just played with 3.7 several times, no oops so far. > > Wei.I also tried v3.8 - same thing. Here is the serial output. And attached is the the config file. Trying 192.168.101.14... Connected to maxsrv1. Escape character is ''^]''. PXELINUX 3.82 2009-06-09 Copyright (C) 1994-2009 H. Peter Anvin et al boot: Loading xen.gz... ok Loading vmlinuz... ok Loading initramfs.cpio.gz... ok __ __ _ _ _ _____ _ \ \/ /___ _ __ | || | / | |___ / _ __ ___/ | _ _ | .__/|_| \___| |_| (XEN) Xen version 4.1.3-rc1-pre (konrad@dumpdata.com) (gcc version 4.4.4 20100503 (Red Hat 4.4.4-2) (GCC) ) Wed Dec 19 13:47:18 EST 2012 (XEN) Latest ChangeSet: Mon Feb 13 17:57:47 2012 +0000 23225:f2543f449a49 (XEN) Bootloader: unknown (XEN) Command line: cpuinfo conring_size=1048576 dom0_mem=max:3G cpufreq=verbose,performance com1=115200,8n1 console=com1,vga loglvl=all guest_loglvl=all (XEN) Video information: (XEN) VGA is text mode 80x25, font 8x16 (XEN) VBE/DDC methods: none; EDID transfer time: 0 seconds (XEN) EDID info not retrieved because no DDC retrieval method detected (XEN) Disc information: (XEN) Found 1 MBR signatures (XEN) Found 1 EDD information structures (XEN) Xen-e820 RAM map: (XEN) 0000000000000000 - 000000000009ec00 (usable) (XEN) 000000000009ec00 - 00000000000a0000 (reserved) (XEN) 00000000000e0000 - 0000000000100000 (reserved) (XEN) 0000000000100000 - 0000000020000000 (usable) (XEN) 0000000020000000 - 0000000020200000 (reserved) (XEN) 0000000020200000 - 0000000040000000 (usable) (XEN) 0000000040000000 - 0000000040200000 (reserved) (XEN) 0000000040200000 - 00000000bad80000 (usable) (XEN) 00000000bad80000 - 00000000badc9000 (ACPI NVS) (XEN) 00000000badc9000 - 00000000badd1000 (ACPI data) (XEN) 00000000badd1000 - 00000000badf4000 (reserved) (XEN) 00000000badf4000 - 00000000badf6000 (usable) (XEN) 00000000badf6000 - 00000000bae06000 (reserved) (XEN) 00000000bae06000 - 00000000bae14000 (ACPI NVS) (XEN) 00000000bae14000 - 00000000bae3c000 (reserved) (XEN) 00000000bae3c000 - 00000000bae7f000 (ACPI NVS) (XEN) 00000000bae7f000 - 00000000bb000000 (usable) (XEN) 00000000bb800000 - 00000000bfa00000 (reserved) (XEN) 00000000fed1c000 - 00000000fed40000 (reserved) (XEN) 00000000ff000000 - 0000000100000000 (reserved) (XEN) 0000000100000000 - 000000023fe00000 (usable) (XEN) ACPI: RSDP 000F0450, 0024 (r2 ALASKA) (XEN) ACPI: XSDT BADC9068, 0054 (r1 ALASKA A M I 1072009 AMI 10013) (XEN) r2 ALASKA A M I 15 INTL 20051117) (XEN) ACPI: FACS BAE0BF80, 0040 (XEN) ACPI: APIC BADD0400, 0072 (r3 ALASKA A M I 1072009 AMI 10013) (XEN) ACPI: SSDT BADD0478, 0102 (r1 AMICPU PROC 1 MSFT 3000001) (XEN) ACPI: MCFG BADD0580, 003C (r1 ALASKA A M I 1072009 MSFT 97) (XEN) ACPI: HPET BADD05C0, 0038 (r1 ALASKA A M I 1072009 AMI. 4) (XEN) ACPI: ASF! BADD05F8, 00A0 (r32 INTEL HCG 1 TFSM F4240) (XEN) System RAM: 8104MB (8299140kB) (XEN) No NUMA configuration found (XEN) Faking a node at 0000000000000000-000000023fe00000 (XEN) Domain heap initialised (XEN) found SMP MP-table at 000fcde0 (XEN) DMI 2.7 present. (XEN) Using APIC driver default (Xxfee00000 (XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled) (XEN) Processor #0 6:10 APIC version 21 (XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled) (XEN) Processor #2 6:10 APIC version 21 (XEN) ACPI: LAPIC (acpi_id[0x03] lapic_id[0x01] enabled) (XEN) Processor #1 6:10 APIC version 21 (XEN) ACPI: LAPIC (acpi_id[0x04] lapic_id[0x03] enabled) (XEN) Processor #3 6:10 APIC version 21 (XEN) ACPI: LAPIC_NMI (acpi_id[0xff] high edge lint[0x1]) (XEN) ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0]) (XEN) IOAPIC[0]: apic_id 0, version 32, address 0xfec00000, GSI 0-23 (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) (XEN) ACPI: IRQ0 used by override. (XEN) ACPI: IRQ2 used by override. (XEN) ACPI: IRQ9 used by override. (XEN) Enabling APIC mode: Flat. Using 1 I/O APICs (XEN) ACPI: HPET id: 0x8086a701 base: 0xfed00000 (XEN) PCI: MCFG configuration 0: base e0000000 segment 0 buses 0 - 255 (XEN) PCI: Not using MMCONFIG. (XEN) Table is not found! (XEN) Using ACPI (MADT) for SMP configuration information (XEN) IRQ limits: 24 GSI, 760 MSI/MSI-X (XEN) Using scheduler: SMP Credit Scheduler (credit) (XEN) Initializing CPU#0 (XEN) Detected 3093.056 MHz processor. (XEN) Initing memory sharing. (XEN) CPU: Physical Processor ID: 0 (XEN) CPU: Processor (XEN) CPU0: Thermal monitoring enabled (TM1) (XEN) Intel machine check reporting enabled (XEN) I/O virtualisation disabled (XEN) CPU0: Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz stepping 07 (XEN) Enabled directed EOI with ioapic_ack_old on! (XEN) ENABLING IO-APIC IRQs (XEN) -> Using old ACK method (XEN) ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=-1 pin2=-1 (XEN) TSC deadline timer enabled (XEN) Platform timer is 14.318MHz HPET ΓΏ(XEN) Allocated console ring of 1048576 KiB. (XEN) VMX: Supported advanced features: (XEN) - APIC MMIO access virtualisation (XEN) - APIC TPR shadow (XEN) - Extended Page Tables (EPT) (XEN) - Virtual-Processor Identifiers (VPID) (XEN) - Virtual NMI (XEN) - MSR direct-access bitmap (XEN) - Unrestricted Guest (XEN) EPT supports 2MB super page. (XEN) HVM: ASIDs enabled. (XEN) HVM: VMX enabled (XEN) HVM: Hardware Assisted Paging detected. (XEN) Booting processor 1/1 eip 7c000 (XEN) Initializing CPU#1 (XEN) CPU: Physical Processor ID: 0 (XEN) CPU: Processor Core ID: 0 (XEN) CPU: L1 I cache: 32K, L1 D cache: 32K (XEN) CPU: L2 cache: 256K (XEN) CPU: L3 cache: 3072K (XEN) CPU1: Thermal monitoring enabled (TM1) (XEN) CPU1: Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz stepping 07 (XEN) Booting processor 2/2 eip 7c000 (XEN) Initializing CPU#2 (XEN) CPU: Physical Processor ID: 0 (XEN) CPU: Processor Core ID: 1 (XEN) CPU: L1 I cache: 32K, L1 D cache: 32K (XEN) CPU: L2 cache: 256K (XEN) CPU: L3 cache: 3072K (XEN) CPU2: Thermal monitoring enabled (TM1) (XEN) CPU2: Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz stepping 07 (XEN) Booting processor 3/3 eip 7c000 (XEN) Initializing CPU#3 (XEN) CPU: Physical Processor ID: 0 (XEN) CPU: Processor Core ID: 1 (XEN) CPU: L1 I cache: 32K, L1 D cache: 32K (XEN) CPU: L2 cache: 256K (XEN) CPU: L3 cache: 3072K (XEN) CPU3: Thermal monitoring enabled (TM1) (XEN) CPU3: Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz stepping 07 (XEN) Brought up 4 CPUs (XEN) ACPI sleep modes: S3 (XEN) mcheck_poll: Machine check polling timer started. (XEN) *** LOADING DOMAIN 0 *** (XEN) Xen kernel: 64-bit, lsb, compat32 (XEN) Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x208f000 (XEN) PHYSICAL ME00 (702942 pages to be allocated) (XEN) Init. ramdisk: 000000022f7de000->000000023fdff200 (XEN) VIRTUAL MEMORY ARRANGEMENT: (XEN) Loaded kernel: ffffffff81000000->ffffffff8208f000 (XEN) Init. ramdisk: ffffffff8208f000->ffffffff926b0200 (XEN) Phys-Mach map: ffffffff926b1000->ffffffff92cb1000 (XEN) Start info: ffffffff92cb1000->ffffffff92cb14b4 (XEN) Page tables: ffffffff92cb2000->ffffffff92d4d000 (XEN) Boot stack: ffffffff92d4d000->ffffffff92d4e000 (XEN) TOTAL: ffffffff80000000->ffffffff93000000 (XEN) ENTRY ADDRESS: ffffffff81aba210 (XEN) Dom0 has maximum 4 VCPUs (XEN) Scrubbing Free RAM: ......................................done. (XEN) Xen trace buffers: disabled (XEN) Std. Loglevel: All (XEN) Guest Loglevel: All (XEN) Xen is relinquishing VGA console. (XEN) *** Serial input -> DOM0 (type ''CTRL-a'' three times to switch input to Xen) (XEN) Freed 220kB init memory. mapping kernel into physical memory about to get started... [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Linux version 3.7.0upstream (konrad@phenom.dumpdata.com) (gcc version 4.4.4 20100503 (Red Hat 4.4.4-2) (GCC) ) #1 SMP Wed Dec 1000] Command line: debug console=hvc0 loglevel=10 xen-pciback.hide=(01:00.0) [ 0.000000] Freeing 9e-100 pfn range: 98 pages freed [ 0.000000] 1-1 mapping on 9e->100 [ 0.000000] Freeing 20000-20200 pfn range: 512 pages freed [ 0.000000] 1-1 mapping on 20000->20200 [ 0.000000] Freeing 40000-40200 pfn range: 512 pages freed [ 0.000000] 1-1 mapping on 40000->40200 [ 0.000000] Freeing bad80-badf4 pfn range: 116 pages freed [ 0.000000] 1-1 mapping on bad80->badf4 [ 0.000000] Freeing badf6-bae7f pfn range: 137 pages freed [ 0.000000] 1-1 mapping on badf6->bae7f [ 0.000000] Freeing bb000-c0000 pfn range: 20480 pages freed [ 0.000000] 1-1 mapping on bb000->100000 [ 0.000000] Released 21855 pages of unused memory [ 0.000000] Set 283999 page(s) to 1-1 mapping [ 0.000000] Populating 100000-10555f pfn range: 21855 pages added [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] Xen: [mem 0x0000000000000000-0x000000000009dfff] usable [ 0.000000] Xen: [mem 0x000000000009ec00-0x00000000000fffff] reserved [ 0.000000] Xen: [mem 0x0000000000100000-0x000000001fffffff] usable [ 0.000000] Xen: [mem 0x0000000020000000-0x00000000201fffff] reserved [ 0.000000] Xen: [mem 0x0000000020200000-0x000000003fffffff] usable [ 0.000000] Xen: [mem 0x0000000040000000-0x00000000401fffff] reserved [ 0.000000] Xen: [mem 0x0000000040200000-0x00000000bad7ffff] usable [ 0.000000] Xen: [mem 0x00000000bad80000-0x00000000badc8fff] ACPI NVS [ 0.000000] Xen: [mem 0x00000000badc9000-0x00000000badd0fff] ACPI data [ 0.000000] Xen: [mem 0x00000000badd1000-0x00000000badf3fff] reserved [ 0.000000] Xen: [mem 0x00000000badf4000-0x00000000badf5fff] usable [ 0.000000] Xen: [mem 0x00000000badf6000-0x00000000bae05fff] reserved [ 0.000000] Xen: [mem 0x00000000bae06000-0x00000000bae13fff] ACPI NVS [ 0.000000] Xen: [mem 0x00000000bae14000-0x00000000bae3bfff] reserved [ 0.000000] Xen: [mem 0x00000000bae3c000-0x00000000bae7efff] ACPI NVS [ 0.000000] Xen: [mem 0x00000000bae7f000-0x00000000baffffff] usable [ 0.000000] Xen: [mem 0x00000000bb800000-0x00000000bf9fffff] reserved [ 0.000000] Xen: [mem 0x00000000fec00000-0x00000000fec00fff] reserved [ 0.000000] Xen: [mem 0x00000000fed1c000-0x00000000fed3ffff] reserved [ 0.000000] Xen: [mem 0x00000000fee00000-0x00000000fee00fff] reserved [ 0.000000] Xen: [mem 0x00000000ff000000-0x00000000ffffffff] reserved [ 0.000000] Xen: [mem 0x0000000100000000-0x000000010555efff] usable [ 0.000000] Xen: [mem 0x000000010555f000-0x000000023fdfffff] unusable [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] DMI 2.7 present. [ 0.000000] DMI: MSI MS-7680/H61M-P23 (MS-7680), BIOS V17.0 03/14/2011 [ 0.000000] e820: update [mem 0x00000000-0x0000ffff] usable ==> reserved [ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable [ 0.000000] No AGP bridge found [ 0.000000] e820: last_pfn = 0x10555f max_arch_pfn = 0x400000000 [ 0.000000] e820: last_pfn = 0xbb000 max_arch_pfn = 0x400000000 [ 0.000000] initial memory mapped: [mem 0x00000000-0x126b0fff] [ 0.000000] Base memory trampoline at [ffff880000098000] 98000 size 24576 [ 0.000000] init_memory_mapping: [mem 0x00000000-0xbaffffff] [ 0.000000] [mem 0x00000000-0xbaffffff] page 4k [ 0.000000] kernel direct mapping tables up to 0xbaffffff @ [mem 0x00a24000-0x00ffffff] [ 0.000000] xen: setting RW the range f66000 - 1000000 [ 0.000000] init_memory_mapping: [mem 0x100000000-0x10555efff] [ 0.000000] [mem 0x100000000-0x10555efff] page 4k [ 0.000000] kernel direct mapping tables up to 0x10555efff @ [mem 0xbafd3000-0xbaffffff] [ 0.000000] xen: setting RW the range bafff000 - bb000000 [ 0.000000] RAMDISK: [mem 0x0208f000-0x126b0fff] [ 0.000000] ACPI: RSDP 00000000000f0450 00024 (v02 ALASKA) [ 0.000000] ACPI: XSDT 00000000badc9068 00054 (v01 ALASKA A M I 01072009 AMI 00010013) [ 0.000000] ACPI: FACP 00000000badd0308 000F4 (v04 ALASKA A M I 01072009 AMI 00010013) [ 0.000000] ACPI: DSDT 00000000badc9150 071B5 (v02 ALASKA A M I 00000015 INTL 20051117) [ 0.000000] ACPI: FACS 00000000bae0bf80 00040 [ 0.000000] ACPI: APIC 00000000badd0400 00072 (v03 ALASKA A M I 01072009 AMI 00010013) [ 0.000000] ACPI: SSDT 00000000badd0478 00102 (v01 AMICPU PROC 00000001 MSFT 03000001) [ 0.000000] ACPI: MCFG 00000000badd0580 0003C (v01 ALASKA A M I 01072009 MSFT 00000097) [ 0.000000] ACPI: HPET 00000000badd05c0 00038 (v01 ALASKA A M I 01072009 AMI. 00000004) [ 0.000000] ACPI: ASF! 00000000badd05f8 000A0 (v32 INTEL HCG 00000001 TFSM 000F4240) [ 0.000000] ACPI: Local APIC address 0xfee00000 [ 0.000000] NUMA turned off [ 0.000000] Faking a node at [mem 0x0000000000000000-0x000000010555efff] [ 0.000000] Initmem setup node 0 [mem 0x00000000-0x10555efff] [ 0.000000] NODE_DATA [mem 0x10555b000-0x10555efff] [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x00010000-0x00ffffff] [ 0.000000] DMA32 [mem 0x01000000-0xffffffff] [ 0.000000] Normal [mem 0x100000000-0x10555efff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x00010000-0x0009dfff] [ 0.000000] node 0: [mem 0x00100000-0x1fffffff] [ 0.000000] node 0: [mem 0x20200000-0x3fffffff] [ 0.000000] node 0: [mem 0x40200000-0xbad7ffff] [ 0.000000] node 0: [mem 0xbadf4000-0xbadf5fff] [ 0.000000] node 0: [mem 0xbae7f000-0xbaffffff] [ 0.000000] node 0: [mem 0x100000000-0x10555efff] [ 0.000000] On node 0 totalpages: 786416 [ 0.000000] DMA zone: 56 pages used for memmap [ 0.000000] DMA zone: 1352 pages reserved [ 0.000000] DMA zone: 2574 pages, LIFO batch:0 [ 0.000000] DMA32 zone: 14280 pages used for memmap [ 0.000000] DMA32 zone: 746299 pages, LIFO batch:31 [ 0.000000] Normal zone: 299 pages used for memmap [ 0.000000] Normal zone: 21556 pages, LIFO batch:3 [ 0.000000] ACPI: PM-Timer IO Port: 0x408 [ 0.000000] ACPI: Local APIC address 0xfee00000 [ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x03] lapic_id[0x01] enabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x04] lapic_id[0x03] enabled) [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] high edge lint[0x1]) [ 0.000000] ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0]) [ 0.000000] IOAPIC[0]: apic_id 0, version 32, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: IRQ0 used by override. [ 0.000000] ACPI: IRQ2 used by override. [ 0.000000] ACPI: IRQ9 used by override. [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] ACPI: HPET id: 0x8086a701 base: 0xfed00000 [ 0.000000] smpboot: Allowing 4 CPUs, 0 hotplug CPUs [ 0.000000] nr_irqs_gsi: 40 [ 0.000000] PM: Registered nosave memory: 000000000009e000 - 000000000009f000 [ 0.000000] PM: Registered nosave memory: 000000000009f000 - 0000000000100000 [ 0.000000] PM: Registered nosave memory: 0000000020000000 - 0000000020200000 [ 0.000000] PM: Registered nosave memory: 0000000040000000 - 0000000040200000 [ 0.000000] PM: Registered nosave memory: 00000000bad80000 - 00000000badc9000 [ 0.000000] PM: Registered nosave memory: 00000000badc9000 - 00000000badd1000 [ 0.000000] PM: Registered nosave memory: 00000000badd1000 - 00000000badf4000 [ 0.000000] PM: Registered nosave memory: 00000000badf6000 - 00000000bae06000 [ 0.000000] PM: Registered nosave memory: 00000000bae06000 - 00000000bae14000 [ 0.000000] PM: Registered nosave memory: 00000000bae14000 - 00000000bae3c000 [ 0.000000] PM: Registered nosave memory: 00000000bae3c000 - 00000000bae7f000 [ 0.000000] PM: Registered nosave memory: 00000000bb000000 - 00000000bb800000 [ 0.000000] PM: Registered nosave memory: 00000000bb800000 - 00000000bfa00000 [ 0.000000] PM: Registered nosave memory: 00000000bfa00000 - 00000000fec00000 [ 0.000000] PM: Registered nosave memory: 00000000fec00000 - 00000000fec01000 [ 0.000000] PM: Registered nosave memory: 00000000fec01000 - 00000000fed1c000 [ 0.000000] PM: Registered nosave memory: 00000000fed1c000 - 00000000fed40000 [ 0.000000] PM: Registered nosave memory: 00000000fed40000 - 00000000fee00000 [ 0.000000] PM: Registered nosave memory: 00000000fee00000 - 00000000fee01000 [ 0.000000] PM: Registered nosave memory: 00000000fee01000 - 00000000ff000000 [ 0.000000] PM: Registered nosave memory: 00000000ff000000 - 0000000100000000 [ 0.000000] e820: [mem 0xbfa00000-0xfebfffff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on Xen [ 0.000000] Xen version: 4.1.3-rc1-pre (preserve-AD) [ 0.000000] setup_percpu: NR_CPUS:512 nr_cpumask_bits:512 nr_cpu_ids:4 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 28 pages/cpu @ffff880105200000 s84288 r8192 d22208 u524288 [ 0.000000] pcpu-alloc: s84288 r8192 d22208 u524288 alloc=1*2097152 [ 0.000000] pcpu-alloc: [0] 0 1 2 3 [ 1.359907] Built 1 zonelists in Node order, mobility grouping on. Total pages: 770429 [ 1.359910] Policy zone: Normal [ 1.359912] Kernel command line: debug console=hvc0 loglevel=10 xen-pciback.hide=(01:00.0) [ 1.360197] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 1.360202] __ex_table already sorted, skipping sort [ 1.382802] software IO TLB [mem 0xb6d80000-0xbad7ffff] (64MB) mapped at [ffff8800b6d80000-ffff8800bad7ffff] [ 1.391629] Memory: 2740388k/4281724k available (6411k kernel code, 1136060k absent, 405276k reserved, 4480k data, 752k init) [ 1.391712] Hierarchical RCU implementation. [ 1.391715] RCU restricting CPUs from NR_CPUS=512 to nr_cpu_ids=4. [ 1.391724] NR_IRQS:33024 nr_irqs:712 16 [ 1.391792] xen: sci override: global_irq=9 trigger=0 polarity=0 [ 1.391795] xen: registering gsi 9 triggering 0 polarity 0 [ 1.391804] xen: --> pirq=9 -> irq=9 (gsi=9) [ 1.391809] xen: acpi sci 9 [ 1.391813] xen: --> pirq=1 -> irq=1 (gsi=1) [ 1.391817] xen: --> pirq=2 -> irq=2 (gsi=2) [ 1.391820] xen: --> pirq=3 -> irq=3 (gsi=3) [ 1.391824] xen: --> pirq=4 -> irq=4 (gsi=4) [ 1.391827] xen: --> pirq=5 -> irq=5 (gsi=5) [ 1.391831] xen: --> pirq=6 -> irq=6 (gsi=6) [ 1.391835] xen: --> pirq=7 -> irq=7 (gsi=7) [ 1.391838] xen: --> pirq=8 -> irq=8 (gsi=8) [ 1.391842] xen: --> pirq=10 -> irq=10 (gsi=10) [ 1.391846] xen: --> pirq=11 -> irq=11 (gsi=11) [ 1.391849] xen: --> pirq=12 -> irq=12 (gsi=12) [ 1.391853] xen: --> pirq=13 -> irq=13 (gsi=13) [ 1.391857] xen: --> pirq=14 -> irq=14 (gsi=14) [ 1.391860] xen: --> pirq=15 -> irq=15 (gsi=15) [ 1.393249] Console: colour VGA+ 80x25 [ 1.393530] console [hvc0] enabled [ 1.393557] Xen: using vcpuop timer interface [ 1.393562] installing Xen timer for CPU 0 [ 1.393582] tsc: Detected 3093.056 MHz processor [ 1.393588] Calibrating delay loop (skipped), value calculated using timer frequency.. 6186.11 BogoMIPS (lpj=3093056) [ 1.393594] pid_max: default: 32768 minimum: 301 [ 1.393631] Security Framework initialized [ 1.393635] SELinux: Initializing. [ 1.393645] SELinux: Starting in permissive mode [ 1.394172] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 1.395081] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes) [ 1.395386] Mount-cache hash table entries: 256 [ 1.395611] Initializing cgroup subsys cpuacct [ 1.395615] Initializing cgroup subsys freezer [ 1.395672] ENERGY_PERF_BIAS: Set to ''normal'', was ''performance'' [ 1.395672] ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8) [ 1.395679] CPU: Physical Processor ID: 0 [ 1.395681] CPU: Processor Core ID: 0 [ 1.395685] mce: CPU supports 7 MCE banks [ 1.395726] Last level iTLB entries: 4KB 512, 2MB 0, 4MB 0 [ 1.395726] Last level dTLB entries: 4KB 512, 2MB 32, 4MB 32 [ 1.395726] tlb_flushall_shift: 5 [ 1.395794] Freeing SMP alternatives: 24k freed [ 1.397997] ACPI: Core revision 20120913 [ 1.626158] cpu 0 spinlock event irq 41 [ 1.626183] Performance Events: unsupported p6 CPU model 42 no PMU driver, software events only. [ 1.626430] NMI watchdog: disabled (cpu0): hardware events not enabled [ 1.626585] installing Xen timer for CPU 1 [ 1.626598] cpu 1 spinlock event irq 48 [ 1.626920] installing Xen timer for CPU 2 [ 1.626932] cpu 2 spinlock event irq 55 [ 1.627217] installing Xen timer for CPU 3 [ 1.627229] cpu 3 spinlock event irq 62 [ 1.627332] Brought up 4 CPUs [ 1.629982] PM: Registering ACPI NVS region [mem 0xbad80000-0xbadc8fff] (299008 bytes) [ 1.629994] PM: Registering ACPI NVS region [mem 0xbae06000-0xbae13fff] (57344 bytes) [ 1.629998] PM: Registering ACPI NVS region [mem 0xbae3c000-0xbae7efff] (274432 bytes) [ 1.630167] kworker/u:0 (31) used greatest stack depth: 5968 bytes left [ 1.630195] Grant tables using version 2 layout. [ 1.630207] Grant table initialized [ 1.630239] RTC time: 18:55:25, date: 12/19/12 [ 1.630315] NET: Registered protocol family 16 [ 1.630558] kworker/u:0 (35) used greatest stack depth: 5504 bytes left [ 1.631082] ACPI: bus type pci registered [ 1.631568] dca service started, version 1.12.1 [ 1.631632] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xe0000000-0xefffffff] (base 0xe0000000) [ 1.631637] PCI: not using MMCONFIG [ 1.631640] PCI: Using configuration type 1 for base access [ 1.641990] bio: create slab <bio-0> at 0 [ 1.642189] ACPI: Added _OSI(Module Device) [ 1.642193] ACPI: Added _OSI(Processor Device) [ 1.642196] ACPI: Added _OSI(3.0 _SCP Extensions) [ 1.642200] ACPI: Added _OSI(Processor Aggregator Device) [ 1.646439] ACPI: EC: Look up EC in DSDT [ 1.650923] ACPI: Executed 1 blocks of module-level executable AML code [ 1.655607] ACPI: SSDT 00000000bae0ac18 0038C (v01 AMI IST 00000001 MSFT 03000001) [ 1.656750] ACPI: Dynamic OEM Table Load: [ 1.656756] ACPI: SSDT (null) 0038C (v01 AMI IST 00000001 MSFT 03000001) [ 1.656786] ACPI: SSDT 00000000bae0be18 00084 (v01 AMI CST 00000001 MSFT 03000001) [ 1.657840] ACPI: Dynamic OEM Table Load: [ 1.657846] ACPI: SSDT (null) 00084 (v01 AMI CST 00000001 MSFT 03000001) [ 1.658539] ACPI: Interpreter enabled [ 1.658544] ACPI: (supports S0 S1 S3 S4 S5) [ 1.658570] ACPI: Using IOAPIC for interrupt routing [ 1.658597] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xe0000000-0xefffffff] (base 0xe0000000) [ 1.658675] PCI: MMCONFIG at [mem 0xe0000000-0xefffffff] reserved in ACPI motherboard resources [ 1.709169] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored [ 1.719728] ACPI: No dock devices found. [ 1.719735] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 1.719976] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 1.720261] PCI host bridge to bus 0000:00 [ 1.720266] pci_bus 0000:00: root bus resource [bus 00-ff] [ 1.720270] pci_bus 0000:00: root bus resource [io 0x0000-0x03af] [ 1.720274] pci_bus 0000:00: root bus resource [io 0x03e0-0x0cf7] [ 1.720277] pci_bus 0000:00: root bus resource [io 0x03b0-0x03df] [ 1.720311] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff] [ 1.720314] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff] [ 1.720318] pci_bus 0000:00: root bus resource [mem 0x000c0000-0x000dffff] [ 1.720322] pci_bus 0000:00: root bus resource [mem 0xbfa00000-0xffffffff] [ 1.720342] pci 0000:00:00.0: [8086:0100] type 00 class 0x060000 [ 1.720448] pci 0000:00:01.0: [8086:0101] type 01 class 0x060400 [ 1.720555] pci 0000:00:01.0: PME# supported from D0 D3hot D3cold [ 1.720607] pci 0000:00:02.0: [8086:0102] type 00 class 0x030000 [ 1.720640] pci 0000:00:02.0: reg 10: [mem 0xfe000000-0xfe3fffff 64bit] [ 1.720658] pci 0000:00:02.0: reg 18: [mem 0xd0000000-0xdfffffff 64bit pref] [ 1.720672] pci 0000:00:02.0: reg 20: [io 0xf000-0xf03f] [ 1.720811] pci 0000:00:16.0: [8086:1c3a] type 00 class 0x078000 [ 1.720855] pci 0000:00:16.0: reg 10: [mem 0xfe607000-0xfe60700f 64bit] [ 1.721005] pci 0000:00:16.0: PME# supported from D0 D3hot D3cold [ 1.721070] pci 0000:00:1a.0: [8086:1c2d] type 00 class 0x0c0320 [ 1.721111] pci 0000:00:1a.0: reg 10: [mem 0xfe606000-0xfe6063ff] [ 1.721282] pci 0000:00:1a.0: PME# supported from D0 D3hot D3cold [ 1.721332] pci 0000:00:1b.0: [8086:1c20] type 00 class 0x040300[ 2.441647] ehci_hcd 0000:00:1a.0: port 1 reset complete, port enabled [ 2.441660] ehci_hcd 0000:00:1a.0: GetStatus port:1 status 001005 0 ACK POWER sig=se0 PE CONNECT mount: mount point /proc/bus/usb does not exist [ 2.492442] usb 1-1: new high-speed USB device number 2 using ehci_hcd mount: mount point /sys/kernel/config does not exist [ 2.509458] core_filesystem (1208) used greatest stack depth: 4952 bytes left FATAL: Error inserting xen_kbdfront (/lib/modules/3.7.0upstream/kernel/drivers/input/misc/xen-kbdfront.ko): No such device FATAL: Error inserting xen_fbfront (/lib/modules/3.7.0upstream/kernel/drivers/video/xen-fbfront.ko): No such device [ 2.543646] ehci_hcd 0000:00:1a.0: port 1 reset complete, port enabled [ 2.543667] ehci_hcd 0000:00:1a.0: GetStatus port:1 status 001005 0 ACK POWER sig=se0 PE CONNECT [ 2.545494] Initialising Xen virtual ethernet driver. [ 2.567446] udevd (1266): /proc/1266/oom_adj is deprecated, please use /proc/1266/oom_score_adj instead. [ 2.607548] ehci_hcd 0000:00:1a.0: set dev address 2 for port 1 [ 2.607560] ehci_hcd 0000:00:1a.0: LPM: no device attached [ 2.607838] usb 1-1: udev 2, busnum 1, minor = 1 [ 2.607845] usb 1-1: New USB device found, idVendor=8087, idProduct=0024 [ 2.607852] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 2.609689] usb 1-1: usb_probe_device [ 2.609699] usb 1-1: configuration #1 chosen from 1 choice [ 2.611359] usb 1-1: adding 1-1:1.0 (config #1, interface 0) [ 2.611568] hub 1-1:1.0: usb_probe_interface [ 2.611575] hub 1-1:1.0: usb_probe_interface - got id [ 2.611581] hub 1-1:1.0: USB hub found [ 2.613339] hub 1-1:1.0: 4 ports detected [ 2.613347] hub 1-1:1.0: standalone hub [ 2.613352] hub 1-1:1.0: individual port power switching [ 2.613358] hub 1-1:1.0: individual port over-current protection [ 2.613363] hub 1-1:1.0: Single TT [ 2.613367] hub 1-1:1.0: TT requires at most 8 FS bit times (666 ns) [ 2.613371] hub 1-1:1.0: power on to power good time: 100ms [ 2.613685] hub 1-1:1.0: local power source is good [ 2.614336] hub 1-1:1.0: enabling power on all ports [ 2.614827] hub 2-0:1.0: state 7 ports 2 chg 0002 evt 0000 [ 2.614843] hub 2-0:1.0: port 1, status 0501, change 0000, 480 Mb/s [ 2.639505] xen: registering gsi 16 triggering 0 polarity 1 [ 2.639517] Already setup the GSI :16 [ 2.651431] SCSI subsystem initialized udevd-work[1305]: error opening ATTR{/sys/devices/system/cpu/cpu0/online} for writing: No such file or directory [ 2.660473] ACPI: bus type scsi registered [ 2.661221] xen: registering gsi 16 triggering 0 polarity 1 [ 2.661228] Already setup the GSI :16 [ 2.662192] pci 0000:00:00.0: Intel Sandybridge Chipset [ 2.662282] libata version 3.00 loaded. [ 2.662370] pci 0000:00:00.0: detected gtt size: 2097152K total, 262144K mappable [ 2.662601] atl1c 0000:03:00.0: version 1.0.1.0-NAPI [ 2.663465] pci 0000:00:00.0: detected 65536K stolen memory [ 2.663514] i915 0000:00:02.0: setting latency timer to 64 [ 2.665638] ehci_hcd 0000:00:1d.0: port 1 reset complete, port enabled [ 2.665647] ehci_hcd 0000:00:1d.0: GetStatus port:1 status 001005 0 ACK POWER sig=se0 PE CONNECT [ 2.716412] usb 2-1: new high-speed USB device number 2 using ehci_hcd [ 2.717096] usb 1-1: link qh256-0001/ffff8800ac75ba40 start 1 [1/0 us] [ 2.767636] ehci_hcd 0000:00:1d.0: port 1 reset complete, port enabled [ 2.767650] ehci_hcd 0000:00:1d.0: GetStatus port:1 status 001005 0 ACK POWER sig=se0 PE CONNECT [ 2.777221] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010). [ 2.777230] [drm] Driver supports precise vblank timestamp query. [ 2.777299] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem Waiting for devices [ OK ] [ 2.807610] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off [ 2.815015] ip (2328) used greatest stack depth: 3896 bytes left [ 2.830534] ehci_hcd 0000:00:1d.0: set dev address 2 for port 1 [ 2.830546] ehci_hcd 0000:00:1d.0: LPM: no device attached [ 2.830780] usb 2-1: udev 2, busnum 2, minor = 129 [ 2.830788] usb 2-1: New USB device found, idVendor=8087, idProduct=0024 [ 2.830796] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 2.830980] usb 2-1: usb_probe_device [ 2.830989] usb 2-1: configuration #1 chosen from 1 choice [ 2.831416] usb 2-1: adding 2-1:1.0 (config #1, interface 0) [ 2.831531] hub 2-1:1.0: usb_probe_interface [ 2.831536] hub 2-1:1.0: usb_probe_interface - got id [ 2.831541] hub 2-1:1.0: USB hub found [ 2.831649] hub 2-1:1.0: 6 ports detected [ 2.831654] hub 2-1:1.0: standalone hub [ 2.831659] hub 2-1:1.0: individual port power switching [ 2.831663] hub 2-1:1.0: individual port over-current protection [ 2.831668] hub 2-1:1.0: Single TT [ 2.831672] hub 2-1:1.0: TT requires at most 8 FS bit times (666 ns) [ 2.831677] hub 2-1:1.0: power on to power good time: 100ms [ 2.831899] hub 2-1:1.0: local power source is good [ 2.833153] hub 2-1:1.0: enabling power on all ports [ 2.833934] hub 1-1:1.0: state 7 ports 4 chg 0000 evt 0000 [ 2.834741] No connectors reported connected with modes [ 2.834749] [drm] Cannot find any crtc or sizes - going 1024x768 [ 2.838554] fbcon: inteldrmfb (fb0) is primary device [ 2.917288] Console: switching to colour frame buffer device 128x48 [ 2.934143] usb 2-1: link qh256-0001/ffff8800b0007340 start 1 [1/0 us] [ 2.934164] hub 2-1:1.0: state 7 ports 6 chg 0000 evt 0000 [ 2.961792] fb0: inteldrmfb frame buffer device [ 2.961795] drm: registered panic notifier [ 2.961821] i915: No ACPI video bus found [ 2.962143] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0 [ 2.962213] ata_piix 0000:00:1f.2: version 2.13 [ 2.962243] xen: registering gsi 19 triggering 0 polarity 1 [ 2.962275] xen: --> pirq=19 -> irq=19 (gsi=19) [ 2.962308] ata_piix 0000:00:1f.2: MAP [ [ 2.962313] P0 P2 P1 P3 ] [ 2.964634] modprobe (1419) used greatest stack depth: 3392 bytes left [ 3.112540] ata_piix 0000:00:1f.2: setting latency timer to 64 [ 3.114540] scsi0 : ata_piix [ 3.115914] scsi1 : ata_piix [ 3.116906] ata1: SATA max UDMA/133 cmd 0x1f0 ctl 0x3f6 bmdma 0xf0d0 irq 14 [ 3.116923] ata2: SATA max UDMA/133 cmd 0x170 ctl 0x376 bmdma 0xf0d8 irq 15 [ 3.116975] xen: registering gsi 19 triggering 0 polarity 1 [ 3.116990] Already setup the GSI :19 [ 3.117015] ata_piix 0000:00:1f.5: MAP [ [ 3.117024] P0 -- P1 -- ] [ 3.267504] ata_piix 0000:00:1f.5: setting latency timer to 64 [ 3.269836] scsi2 : ata_piix [ 3.271381] scsi3 : ata_piix [ 3.272665] ata3: SATA max UDMA/133 cmd 0xf0b0 ctl 0xf0a0 bmdma 0xf070 irq 19 [ 3.272679] ata4: SATA max UDMA/133 cmd 0xf090 ctl 0xf080 bmdma 0xf078 irq 19 [ 3.728513] ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 3.731935] ata3.00: ATAPI: HL-DT-ST DVDRAM GH24NS50, XP01, max UDMA/100 [ 3.753810] ata3.00: configured for UDMA/100 [ 4.123458] ata2.00: failed to resume link (SControl 0) [ 4.279470] ata4: failed to resume link (SControl 0) [ 4.290776] ata4: SATA link down (SStatus 4 SControl 0) [ 4.428514] ata1.01: failed to resume link (SControl 0) [ 4.579683] ata1.00: SATA link up 3.0 Gbps (SStatus 123 SControl 300) [ 4.579753] ata1.01: SATA link down (SStatus 0 SCo^G[ 4.628360] ata1.00: ATA-7: ST3808110AS, 3.ADH, max UDMA/133 [ 4.628375] ata1.00: 156250000 sectors, multi 16: LBA48 NCQ0/32) ^G^G[ 4.809185] ata1.00: failed to get Identify Device Data, Emask 0x1 [ 5.025822] ata1.00: failed to get Identify Device Data, Emask 0x1 [ 5.025872] ata1.00: configured for UDMA/133 [ 5 ATA ST3808110AS 3.AD PQ: 0 ANSI: 5 [ 5.027796] ACPI: Invalid Power Resource to register!^G^G^G^G^G^G^G^G^G[ 5.130457] ata2.01: failed to resume link (SControl 0) [ 5.142312] ata2.00: SATA link down (SStatus 4 SControl 0) [ 5.142382] ata2.01: SATA link down (SStatus 0 SControl 0) [ 5.146256] scsi 2:0:0:0: CD-ROM HL-DT-ST DVDRAM GH24NS50 XP01 PQ: 0 ANSI: 5 [ 5.147459] ACPI: Invalid Power Resource to register![ 5.156476] sd 0:0:0:0: [sda] 156250000 512-byte logical blocks: (80.0 GB/74.5 GiB) [ 5.156759] sd 0:0:0:0: [sda] Write Protect is off [ 5.156774] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 [ 5.156878] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn''t support DPO or FUA [ 5.166854] sr0: scsi3-mmc drive: 48x/48x writer dvd-ram cd/rw xa/form2 cdda tray [ 5.166864] cdrom: Uniform CD-ROM driver Revision: 3.20 [ 5.167476] sr 2:0:0:0: Attached scsi CD-ROM sr0 [ 5.208328] sda: sda1 sda2 sda3 sda4 [ 5.210047] sd 0:0:0:0: [sda] Attached SCSI disk [ 5.216268] sd 0:0:0:0: Attached scsi generic sg0 type 0 [ 5.216450] sr 2:0:0:0: Attached scsi generic sg1 type 5 Waiting for fb [ OK ] Starting..[/dev/fb0] /dev/fb0: len:0 /dev/fb0: bits/pixel32 (7fb6c7d73000): Writting .. [1024:768] Done! FATAL: Module agpgart_intel not found. [ 5.546351] [drm] radeon kernel modesetting enabled. [ 5.552678] wmi: Mapper lo^GStarting..[/dev/fb0] /dev/fb0: len:0 /dev/fb0: bits/pixel32 (7fbf03f6e000): Writting .. [1024:768] Done! VGA: 0000:00:02.0 Waiting for network [ OK ] Bringing up loopback interface: [ OK ] Bringing up interface eth0: [ 6.129588] atl1c 0000:03:00.0: atl1c: eth0 NIC Link is Up<1000 Mbps Full Duplex> [ 6.132986] device eth0 entered promiscuous mode [ OK ] Bringing up interface switch: Determining IP information for switch...[ 6.213539] switch: port 1(eth0) entered forwarding state [ 6.213561] switch: done. [ OK ] Waiting for SSHd [ OK ] Generating keys ... +-----------------+ +-----------------+ +-----------------+ Starting SSHd ... SSH started [2758] passwd = skl+3c FATAL: Module dump_dma not found. ERROR: Module dump_dma does not exist in /proc/modules [ 7.895459] Loading iSCSI transport class v2.0-870. [ 7.900281] iscsi: registered transport (tcp) iscsistart: transport class version 2.0-870. iscsid version 2.0-872 Could not get list of targets from firmware. Dec 19 18:5G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^GStarting xenstored...Dec 19 18:55:31 tst007 xenstored: Checking store ... Dec 19 18:55:31 tst007 xenstored: Checking store complete. Setting domain 0 name... Starting xenconsoled... Dec 19 18:55:32 tst007 BLKTAPCTRL[2863]: blktapctrl.c:790: blktapctrl: v1.0.0 Dec 19 18:55:32 tst007 BLKTAPCTRL[2863]: blkta Dec 19 18:55:32 tst007 BLKTAPCTRL[2863]: blktapctrl.c:792: Found driver: [ramdisk image (ram)] Dec 19 18:55:32 tst007 BLKTAPCTRL[2863]: blktapctrl.c:792: Found driver: [qcow disk (qcow)] Dec 19 18:55:32 tst007 BLKTAPCTRL[2863]: blktapctrl.c:792: Found driver: [qcow2 disk (qcow2)] Dec 19 18:55:32 tst007 BLKTAPCTRL[2863]: blktapctrl_linux.c:86: blktap0 open failed Dec 19 18:55:32 tst007 BLKTAPCTRL[2863]: blktapctrl.c:859: couldn''t open blktap interface Dec 19 18:55:32 tst007 BLKTAPCTRL[2863]: blktapctrl.c:922: Unable to start blktapctrl ^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^GDec 19 18:55:32 tst007 iscsid: transport class version 2.0-870. iscsid version 2.0-872 Dec 19 18:55:32 tst007 iscsid: iSCSI daemon with pid=2825 started! [0:0:0:0] disk ATA ST3808110AS 3.AD /dev/sda [2:0:0:0] cd/dvd HL-DT-ST DVDRAM GH24NS50 XP01 /dev/sr0 ^G00:00.0 Host bridge: Intel Corporation Device 0100 (rev 09) 00:01.0 PCI bridge: Intel Corporation Device 0101 (rev 09) 00:02.0 VGA compatible controller: Intel Corporation Sandy Bridge Integrated Graphics Controller (rev 09) 00:16.0 Communication controller: Intel Corporation Cougar Point HECI Controller #1 (rev 04) 00:1a.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host Controller #2 (rev 05) 00:1b.0 Audio device: Intel Corporation Cougar Point High Definition Audio Controller (rev 05) 00:1c.0 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 1 (rev b5) 00:1c.4 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 5 (rev b5) 00:1d.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host Controller #1 (rev 05) 00:1f.0 ISA bridge: Intel Corporation Device 1c5c (rev 05) 00:1f.2 IDE interface: Intel Corporation Cougar Point 4 port SATA IDE Controller (rev 05) 00:1f.3 SMBus: Intel Corporation Cougar Point SMBus Controller (rev 05) 00:1f.5 IDE interface: Intel Corporation Cougar Point 2 port SATA IDE Controller (rev 05) 01:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network Connection 03:00.0 Ethernet controller: Attansic Technology Corp. Device 1083 (rev c0) CPU0 CPU1 CPU2 CPU3 1: 2 0 0 0 xen-pirq-ioapic-edge i8042 8: 1 0 0 0 xen-pirq-ioapic-edge rtc0 9: 0 0 0 0 xen-pirq-ioapic-level acpi 12: 4 0 0 0 xen-pirq-ioapic-edge i8042 14: 15 0 0 0 xen-pirq-ioapic-edge ata_piix 15: 0 0 0 0 xen-pirq-ioapic-edge ata_piix 16: 22 0 0 0 xen-pirq-ioapic-level ehci_hcd:usb1 18: 0 0 0 0 xen-pirq-ioapic-level i801_smbus 19: 109 0 0 0 xen-pirq-ioapic-level ata_piix 23: 26 0 0 0 xen-pirq-ioapic-level ehci_hcd:usb2 40: 4082 0 0 0 xen-percpu-virq timer0 41: 1 0 0 0 xen-percpu-ipi spinlock0 42: 3815 0 0 0 xen-percpu-ipi resched0 43: 243 0 0 0 xen-percpu-ipi callfunc0 44: 0 0 0 0 xen-percpu-virq debug0 45: 26 0 0 0 xen-percpu-ipi callfuncsingle0 46: 0 0 0 0 xen-percpu-ipi irqwork0 47: 0 2286 0 0 xen-percpu-virq timer1 48: 0 2 0 0 xen-percpu-ipi spinlock1 49: 0 3220 0 0 xen-percpu-ipi resched1 50: 0 357 0 0 xen-percpu-ipi callfunc1 51: 0 0 0 0 xen-percpu-virq debug1 52: 0 180 0 0 xen-percpu-ipi callfuncsingle1 53: 0 0 0 0 xen-percpu-ipi irqwork1 54: 0 0 3606 0 xen-percpu-virq timer2 55: 0 0 2 0 xen-percpu-ipi spinlock2 56: 0 0 3405 0 xen-percpu-ipi resched2 57: 0 0 231 0 xen-percpu-ipi callfunc2 58: 0 0 0 0 xen-percpu-virq debug2 59: 0 0 34 0 xen-percpu-ipi callfuncsingle2 60: 0 0 0 0 xen-percpu-ipi irqwork2 61: 0 0 0 2545 xen-percpu-virq timer3 62: 0 0 0 0 xen-percpu-ipi spinlock3 63: 0 0 0 2343 xen-percpu-ipi resched3 64: 0 0 0 348 xen-percpu-ipi callfunc3 65: 0 0 0 0 xen-percpu-virq debug3 66: 0 0 0 186 xen-percpu-ipi callfuncsingle3 67: 0 0 0 0 xen-percpu-ipi irqwork3 68: 169 0 0 0 xen-dyn-event xenbus 69: 0 0 0 0 xen-percpu-virq xen-pcpu 71: 0 0 0 0 xen-percpu-virq mce 72: 145 0 0 0 xen-percpu-virq hvc_console 73: 0 0 0 0 xen-pirq-msi i915 74: 19 0 0 0 xen-pirq-msi eth0 75: 87 0 0 0 xen-dyn-event evtchn:xenstored 76: 0 0 0 0 xen-dyn-event evtchn:xenstored NMI: 0 0 0 0 Non-maskable interrupts LOC: 0 0 0 0 Local timer interrupts SPU: 0 0 0 0 Spurious interrupts PMI: 0 0 0 0 Performance monitoring interrupts IWI: 0 0 0 0 IRQ work interrupts RTR: 0 0 0 0 APIC ICR read retries RES: 3815 3221 3405 2343 Rescheduling interrupts CAL: 269 537 265 534 Function call interrupts TLB: 0 0 0 0 TLB shootdowns TRM: 0 0 0 0 Thermal event interrupts THR: 0 0 0 0 Threshold APIC interrupts MCE: 0 0 0 0 Machine check exceptions MCP: 1 1 1 1 Machine check polls ERR: 0 MIS: 0 00000000-0000ffff : reserved 00010000-0009dfff : System RAM 0009e000-0009ebff : RAM buffer 0009ec00-000fffff : reserved 000a0000-000bffff : PCI Bus 0000:00 000c0000-000dffff : PCI Bus 0000:00 000c0000-000cd7ff : Video ROM 000cd800-000ce7ff : Adapter ROM 000ce800-000cf7ff : Adapter ROM 000f0000-000fffff : System ROM 00100000-1fffffff : System RAM 01000000-01642f47 : Kernel code 01642f48-01aa317f : Kernel data 01b68000-01c71fff : Kernel bss 20000000-201fffff : reserved 20200000-3fffffff : System RAM 40000000-401fffff : reserved 40200000-bad7ffff : System RAM bad80000-badc8fff : ACPI Non-volatile Storage badc9000-badd0fff : ACPI Tables badd1000-badf3fff : reserved badf4000-badf5fff : System RAM badf6000-bae05fff : reserved bae06000-bae13fff : ACPI Non-volatile Storage bae14000-bae3bfff : reserved bae3c000-bae7efff : ACPI Non-volatile Storage bae7f000-baffffff : System RAM bb000000-bb7fffff : RAM buffer bb800000-bf9fffff : reserved bfa00000-ffffffff : PCI Bus 0000:00 d0000000-dfffffff : 0000:00:02.0 e0000000-efffffff : PCI MMCONFIG 0000 [bus 00-ff] e0000000-efffffff : pnp 00:01 fe000000-fe3fffff : 0000:00:02.0 fe400000-fe4fffff : PCI Bus 0000:03 fe400000-fe43ffff : 0000:03:00.0 fe400000-fe43ffff : atl1c fe500000-fe5fffff : PCI Bus 0000:01 fe500000-fe57ffff : 0000:01:00.0 fe580000-fe5bffff : 0000:01:00.0 fe5c0000-fe5dffff : 0000:01:00.0 fe5e0000-fe5e3fff : 0000:01:00.0 fe600000-fe603fff : 0000:00:1b.0 fe604000-fe6040ff : 0000:00:1f.3 fe605000-fe6053ff : 0000:00:1d.0 fe605000-fe6053ff : ehci_hcd fe606000-fe6063ff : 0000:00:1a.0 fe606000-fe6063ff : ehci_hcd fe607000-fe60700f : 0000:00:16.0 fec00000-fec00fff : reserved fec00000-fec003ff : IOAPIC 0 fed00000-fed003ff : HPET 0 fed08000-fed08fff : pnp 00:0c fed10000-fed19fff : pnp 00:01 fed1c000-fed3ffff : reserved fed1c000-fed1ffff : pnp 00:0c fed20000-fed3ffff : pnp 00:01 fed90000-fed93fff : pnp 00:01 fee00000-fee00fff : Local APIC fee00000-fee00fff : reserved ff000000-ffffffff : reserved ff000000-ffffffff : pnp 00:0c 100000000-10555efff : System RAM 10555f000-23fdfffff : Unusable memory MemTotal: 3011524 kB MemFree: 2635868 kB Buffers: 0 kB Cached: 285004 kB SwapCached: 0 kB Active: 103264 kB Inactive: 197972 kB Active(anon): 92564 kB Inactive(anon): 114340 kB Active(file): 10700 kB Inactive(file): 83632 kB Unevictable: 17360 kB Mlocked: 5000 kB SwapTotal: 0 kB SwapFree: 0 kB Dirty: 0 kB Writeback: 0 kB AnonPages: 33520 kB Mapped: 6464 kB Shmem: 174728 kB Slab: 25528 kB SReclaimable: 12000 kB SUnreclaim: 13528 kB KernelStack: 808 kB PageTables: 1508 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 1505760 kB Committed_AS: 278004 kB VmallocTotal: 34359738367 kB VmallocUsed: 548756 kB VmallocChunk: 34359187451 kB AnonHugePages: 0 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 3151228 kB DirectMap2M: 0 kB 19 Dec 18:55:36 ntpdate[2935]: adjust time server 17.171.4.13 offset 0.028462 sec Wed Dec 19 18:55:37 UTC 2012 Dec 19 18:55:37 tst007 init: starting pid 2944, tty ''/dev/tty0'': ''/bin/sh'' Dec 19 18:55:37 tstd 2946, tty ''/dev/ttyS0'': ''/bin/sh'' BusyBox v1.14.3 (2012-12-04 14:22:27 EST) built-in shell (ash) Enter ''help'' for a list of built-in commands. # Dec 19 18:55:37 tst007 init: starting pid 2947, tty ''/dev/hvc0'': ''/bin/sh'' Dec 19 18:55:38 tst007 init: process ''/bin/sh'' (pid 2946) exited. Scheduling for restart. Dec 19 18:55:38 tst007 init: startiDec 19 18:55:39 tst007 init: process ''/bin/sh'' (pid 2948) exited. Scheduling for restart. Dec 19 18:55:39 tst007 init: starti/sh'' Dec 19 18:55:40 tst007 init: process ''/bin/sh'' (pid 2949) exited. Scheduling for restart. Dec 19 18:55:40 tst007 init: starti/sh'' Dec 19 18:55:41 tst007 init: process ''/bin/sh'' (pid 2950) exited. Scheduling for restart. Dec 19 18:55:41 tst007 init: starti/bin/sh'' Dec 19 18:55:42 tst007 init: process ''/bin/sh'' (pid 2951) exited. Scheduling for restart. Dec 19 18:55:42 tst007 init: startityS0'': ''/bin/sh'' Dec 19 18:55:43 tst007 init: process ''/bin/sh'' (pid 2952) exited. Scheduling for restart. Dec 19 18:55:43 tst007 init: startiev/ttyS0'': ''/bin/sh'' Dec 19 18:55:44 tst007 init: process ''/bin/sh'' (pid 2953) exited. Scheduling for restart. Dec 19 18:55:44 tst007 init: starti tty ''/dev/ttyS0'': ''/bin/sh'' [ 21.237703] switch: port 1(eth0) entered forwarding state Dec 19 18:55:45 tst007 init: process ''/bin/sh'' (pid 2954) exited. Scheduling for restart. Dec 19 18:55:45 tst007 init: starti tty ''/dev/ttyS0'': ''/bin/sh'' Dec 19 18:55:46 tst007 init: process ''/bin/sh'' (pid 2955) exited. Scheduling for restart. Dec 19 18:55:46 tst007 init: startiid 2956, tty ''/dev/ttyS0'': ''/bin/sh'' Dec 19 18:55:46 tst007 sshd[2957]: WARNING: /etc/ssh/moduli does not exist, using fixed modulus Dec 19 18:55:46 tst007 sshd[2958]: Connection closed by 192.168.101.16 Dec 19 18:55:47 tst007 init: process ''/bin/sh'' (pid 2956) exited. Scheduling for restart. Dec 19 18:55:47 tst007 init: starting pid 2959, tty ''/dev/ttyS0'': ''/bin/sh'' Dec 19 18:55:48 tst007 init: process ''/bin/sh'' (pid 2959) exited. Scheduling for restart. Dec 19 18:55:48 tst007 init: starting pid 2960, tty ''/dev/ttyS0'': ''/bin/sh'' Dec 19 18:55:49 tst007 init: process ''/bin/sh'' (pid 2960) exited. Scheduling for restart. Dec 19 18:55:49 tst007 init: starting pid 2961, tty ''/dev/ttyS0'': ''/bin/sh'' kill Dec 19 18:55:50 tst007 init: process ''/bin/sh'' (pid 2961) exited. Scheduling for restart. Dec 19 18:55:50 tst007 init: starting pid 2962, tty ''/dev/ttyS0'': ''/bin/sh'' -1 1 /bin/sh: Dec 19 18:55:51 tst007 init: process ''/bin/sh'' (pid 2962) exited. Scheduling for restart. Dec 19 18:55:51 tst007 init: starting pid 2963, tty ''/dev/ttyS0'': ''/bin/sh'' Dec 19 18:55:52 tst007 init: process ''/bin/sh'' (pid 2963) exited. Scheduling for restart. Dec 19 18:55:52 tst007 init: starting pid 2964, tty ''/dev/ttyS0'': ''/bin/sh'' /bin/sh: : not found # kiDec 19 18:55:53 tst007 init: process ''/bin/sh'' (pid 2964) exited. Scheduling for restart. Dec 19 18:55:53 tst007 init: starting pid 2965, tty ''/dev/ttyS0'': ''/bin/sh'' ll -1 1 # Dec 19 18:55:54 tst007 init: reloading /etc/inittab # eho cho 0 > /sys/bus# [Jfind /sys -name cpu9 0/ 4/on 3/online find: warning: Unix filenames usually don''t contain slashes (though pathnames do). That means that ''-name `cpu3/online'''' will probably evaluate to false all the time on this system. You might find the ''-wholename'' test more useful, or perhaps ''-samefile''. Alternatively, if you are using GNU grep, you could use ''find ... -print0 | grep -FzZ `cpu3/online''''. # cat /proc/cp[8D# cat /proc/cpuinfo [J processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 42 model name : Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz stepping : 7 microcode : 0x12 cpu MHz : 3093.056 cache size : 3072 KB physical id : 0 siblings : 4 core id : 0 cpu cores : 2 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu de tsc msr pae mce cx8 apic sep mca cmov pat clflush acpi mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc rep_good nopl nonstop_tsc pni pclmulqdq est ssse3 cx16 pcid sse4_1 sse4_2 popcnt tsc_deadline_timer hypervisor lahf_lm arat epb pln pts dtherm bogomips : 6186.11 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 42 model name : Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz stepping : 7 microcode : 0x12 cpu MHz : 3093.056 cache size : 3072 KB physical id : 0 siblings : 4 core id : 0 cpu cores : 2 apicid : 1 initial apicid : 1 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu de tsc msr pae mce cx8 apic sep mca cmov pat clflush acpi mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc rep_good nopl nonstop_tsc pni pclmulqdq est ssse3 cx16 pcid sse4_1 sse4_2 popcnt tsc_deadline_timer hypervisor lahf_lm arat epb pln pts dtherm bogomips : 6186.11 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 2 vendor_id : GenuineIntel cpu family : 6 model : 42 model name : Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz stepping : 7 microcode : 0x12 cpu MHz : 3093.056 cache size : 3072 KB physical id : 0 siblings : 4 core id : 1 cpu cores : 2 apicid : 2 initial apicid : 2 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu de tsc msr pae mce cx8 apic sep mca cmov pat clflush acpi mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc rep_good nopl nonstop_tsc pni pclmulqdq est ssse3 cx16 pcid sse4_1 sse4_2 popcnt tsc_deadline_timer hypervisor lahf_lm arat epb pln pts dtherm bogomips : 6186.11 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 3 vendor_id : GenuineIntel cpu family : 6 model : 42 model name : Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz stepping : 7 microcode : 0x12 cpu MHz : 3093.056 cache size : 3072 KB physical id : 0 siblings : 4 core id : 1 cpu cores : 2 apicid : 3 initial apicid : 3 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu de tsc msr pae mce cx8 apic sep mca cmov pat clflush acpi mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc rep_good nopl nonstop_tsc pni pclmulqdq est ssse3 cx16 pcid sse4_1 sse4_2 popcnt tsc_deadline_timer hypervisor lahf_lm arat epb pln pts dtherm bogomips : 6186.11 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: # # cat /proc/cpuinfo [J# find /sys -name cpu3/online[J online /sys/devices/system/cpu/cpu1/online /sys/devices/system/cpu/cpu2/online /sys/devices/system/cpu/cpu3/online /sys/devices/system/cpu/online /sys/devices/system/node/online /sys/devices/system/xen_cpu/xen_cpu1/online /sys/devices/system/xen_cpu/xen_cpu2/online /sys/devices/system/xen_cpu/xen_cpu3/online # cat /sys/devices/system/cpu/cpu3/online 1 # echo 0 > /sys/devices/system/cpu/cpu3/online # # # # echo 0 > /sys/devices/system/cpu/cpu3/online[J[44Decho 0 > /sys/devices/system/cpu/cpu3/online [39D1 > /sys/devices/system/cpu/cpu3/online[38D > /sys/devices/system/cpu/cpu3/online [ 73.324141] installing Xen timer for CPU 3 [ 73.324236] cpu 3 spinlock event irqc_intel fbcon scsi_mod tileblit font bitblit softcursor atl1c drm_kms_helper video xen_blkfront xen_netfront fb_sys_fops sysimgblt sysfillrect syscopyarea xenfs xen_privcmd mperf [ 73.325026] Pid: 0, comm: swapper/3 Not tainted 3.7.0upstream #1 [ 73.325033] Call Trace: [ 73.325047] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 73.325058] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 73.325074] [<ffffffff81043d5d>] ? xen_force_evtchn_callback+0xd/0x10 [ 73.325086] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 73.325097] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 73.325112] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 73.325116] BUG: unable to handle kernel NULL pointer dereference[ 73.325122] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 [ 73.325133] at 0000000000000004 [ 73.325140] IP: [<ffffffff81367e7b>] acpi_processor_setup_cpuidle_cx+0x3f/0x105 [ 73.325160] PGD aacf6067 PUD b0000067 PMD 0 [ 73.325181] Oops: 0002 [#1] SMP [ 73.325194] Modules linked in: xen_evtchn iscsi_boot_sysfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi libcrc32c crc32c nouveau mxm_wmi wmi radeon ttm sg sr_mod sd_mod cdrom ata_generic ata_piix libata i915 crc32c_intel fbcon scsi_mod tileblit font bitblit softcursor atl1c drm_kms_helper video xen_blkfront xen_netfront fb_sys_fops sysimgblt sysfillrect syscopyarea xenfs xen_privcmd mperf [ 73.325330] CPU 0 [ 73.325337] Pid: 2947, comm: sh Tainted: G W 3.7.0upstream #1 MSI MS-7680/H61M-P23 (MS-7680) [ 73.325345] RIP: e030:[<ffffffff81367e7b>] [<ffffffff81367e7b>] acpi_processor_setup_cpuidle_cx+0x3f/0x105 [ 73.325358] RSP: e02b:ffff8800ace7dcb8 EFLAGS: 00010202 [ 73.325365] RAX: 0000000000010ae9 RBX: ffff880100f56c00 RCX: ffff880105380000 [ 73.325374] RDX: 0000000000000003 RSI: 0000000000000200 RDI: ffff880100f56c00 [ 73.325385] RBP: ffff8800ace7dcf8 R08: ffffffff81811ec0 R09: 0000000000000200 [ 73.325395] R10: 0000000000000000 R11: 000000000000fffc R12: ffff880100f56c00 [ 73.325406] R13: 00000000ffffff01 R14: 0000000000000000 R15: ffffffff81a8e1a0 [ 73.325419] FS: 00007fb4785cd700(0000) GS:ffff880105200000(0000) knlGS:0000000000000000 [ 73.325428] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b [ 73.325436] CR2: 0000000000000004 CR3: 00000000af063000 CR4: 0000000000002660 [ 73.325443] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.325450] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 73.325457] Process sh (pid: 2947, threadinfo ffff8800ace7c000, task ffff8800aacd0810) [ 73.325463] Stack: [ 73.325468] 0000000000000150 ffff8800120d6200 ffff8800ace7dce8 ffff880100f56c00 [ 73.325486] 0000000000000000 00000000ffffff01 0000000000000000 ffffffff81a8e1a0 [ 73.325504] ffff8800ace7dd28 ffffffff8136850b ffff8800ace7dd18 ffffffff810ad296 [ 73.325521] Call Trace: [ 73.325559] [<ffffffff8136850b>] acpi_processor_hotplug+0x7c/0x9f [ 73.325572] [<ffffffff810ad296>] ? schedule_delayed_work_on+0x16/0x20 [ 73.325583] [<ffffffff81365d48>] acpi_cpu_soft_notify+0x90/0xca [ 73.325594] [<ffffffff8163a96d>] notifier_call_chain+0x4d/0x70 [ 73.325605] [<ffffffff810bb1b9>] __raw_notifier_call_chain+0x9/0x10 [ 73.325617] [<ffffffff81093b2b>] __cpu_notify+0x1b/0x30 [ 73.325627] [<ffffffff8162d4d6>] _cpu_up+0x102/0x14a [ 73.325637] [<ffffffff8162d5f7>] cpu_up+0xd9/0xec [ 73.325648] [<ffffffff81613da4>] store_online+0x94/0xd0 [ 73.325660] [<ffffffff813f318b>] dev_attr_store+0x1b/0x20 [ 73.325671] [<ffffffff8120f644>] sysfs_write_file+0xf4/0x170 [ 73.325682] [<ffffffff8119ad28>] vfs_write+0xc8/0x190 [ 73.325692] [<ffffffff8119b57a>] sys_write+0x5a/0xa0 [ 73.325702] [<ffffffff8163eae9>] system_call_fastpath+0x16/0x1b [ 73.325708] Code: 89 fc 53 48 83 ec 18 8b 57 0c 89 d1 48 8b 0c cd 00 81 a9 81 4c 8b 34 08 8a 47 1c 84 c0 0f 89 ba 00 00 00 a8 01 0f 84 b2 00 00 00 <41> 89 56 04 83 3d 62 3a 73 00 00 b8 01 00 00 00 0f 45 05 56 3a [ 73.325900] RIP [<ffffffff81367e7b>] acpi_processor_setup_cpuidle_cx+0x3f/0x105 [ 73.325912] RSP <ffff8800ace7dcb8> [ 73.325917] CR2: 0000000000000004 [ 73.325939] ---[ end trace 81413fa6088e35ac ]--- Dec 19 18:56:37 [ 73.326476] BUG: scheduling while atomic: swapper/3/0/0x00000000 tst007 [ 73.326488] Modules linked in:init: process ''/bin/sh'' (pid 2947) exited. Scheduling for restart. xen_evtchn iscsi_boot_sysfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi libcrc32c crc32c nouveau mxm_wmi wmi radeon ttm sg sr_mod sd_mod cdrom ata_generic ata_piix libata i915 crc32c_intel fbcon scsi_mod tileblit font bitblit softcursor atl1c drm_kms_helper video xen_blkfront xen_netfront fb_sys_fops sysimgblt sysfillrect syscopyarea xenfs xen_privcmd mperf [ 73.326638] Pid: 0, comm: swapper/3 Tainted: G D W 3.7.0upstream #1 [ 73.326645] Call Trace: [ 73.326656] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 73.326667] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 73.326677] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 73.326686] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 73.326697] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 73.326707] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 Dec 19 18:56:37 tst007 init: starting pid 2978, tty ''/dev/hvc0'': ''/bin/sh'' BusyBox v1.14.3 (2012-12-04 14:22:27 EST) built-in shell (ash) Enter ''help'' for a list of built-in commands. # [ 74.567070] BUG: scheduling while atomic: swapper/3/0/0x00000000 [ 74.567084] Modules linked in: xen_evtchn iscsi_boot_sy xen_blkfront xen_netfront fb_sys_fops sysimgblt sysfillrect syscopyarea xenfs xen_privcmd mperf [ 74.567257] Pid: 0, comm: swapper/3 Tainted: G D W 3.7.0upstream #1 [ 74.567263] Call Trace: [ 74.567276] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 74.567286] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 74.567296] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 74.567306] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 74.567317] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 74.567327] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 [ 75.066920] BUG: scheduling while atomic: swapper/3/0/0x00000000 [ 75.066933] Modules linked in: xen_evtchn iscsi_boot_sysi_tcp libiscsi scsi_transport_iscsi libcrc32c crc32c nouveau mxm_wmi wmi radeon ttm sg sr_mod sd_mod cdrom ata_generic ata_piix libata i915 crc32c_intel fbcon scsi_mod tileblit font bitblit softcursor atl1c drm_kms_helper video xen_blkfront xen_netfront fb_sys_fops sysimgblt sysfillrect syscopyarea xenfs xen_privcmd mperf [ 75.067106] Pid: 0, comm: swapper/3 Tainted: G D W 3.7.0upstream #1 [ 75.067113] Call Trace: [ 75.067125] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 75.067135] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 75.067145] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 75.067154] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 75.067165] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 75.067175] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 [ 76.566091] BUG: scheduling while atomic: swapper/3/0/0x00000000 [ 76.566105] Modules linked in: xen_evtchn iscsi_boot_syt xen_netfront fb_sys_fops sysimgblt sysfillrect syscopyarea xenfs xen_privcmd mperf [ 76.566277] Pid: 0, comm: swapper/3 Tainted: G D W 3.7.0upstream #1 [ 76.566283] Call Trace: [ 76.566295] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 76.566305] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 76.566315] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 76.566325] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 76.566335] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 76.566345] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 [ 77.065960] BUG: scheduling while atomic: swapper/3/0/0x00000000 [ 77.065974] Modules linked in: xen_evtchn iscsi_boot_sycsi scsi_transport_iscsi libcrc32c crc32c nouveau mxm_wmi wmi radeon ttm sg sr_mod sd_mod cdrom ata_generic ata_piix libata i915 crc32c_intel fbcon scsi_mod tileblit font bitblit softcursor atl1c drm_kms_helper video xen_blkfront xen_netfront fb_sys_fops sysimgblt sysfillrect syscopyarea xenfs xen_privcmd mperf [ 77.066146] Pid: 0, comm: swapper/3 Tainted: G D W 3.7.0upstream #1 [ 77.066153] Call Trace: [ 77.066165] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 77.066175] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 77.066185] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 77.066194] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 77.066205] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 77.066215] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 [ 77.323438] BUG: scheduling while atomic: swapper/3/0/0x00000000 [ 77.323453] Modules linked in: xen_evtchn iscsi_boot_sy2c crc32c nouveau mxm_wmi wmi radeon ttm sg sr_mod sd_mod cdrom ata_generic ata_piix libata i915 crc32c_intel fbcon scsi_mod tileblit font bitblit softcursor atl1c drm_kms_helper video xen_blkfront xen_netfront fb_sys_fops sysimgblt sysfillrect syscopyarea xenfs xen_privcmd mperf [ 77.323625] Pid: 0, comm: swapper/3 Tainted: G D W 3.7.0upstream #1 [ 77.323631] Call Trace: [ 77.323643] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 77.323654] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 77.323663] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 77.323673] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 77.323684] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 77.323694] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 [ 78.565081] BUG: scheduling while atomic: swapper/3/0/0x00000000 [ 78.565095] Modules linked in: xen_evtchn iscsi_boot_syb_sys_fops sysimgblt sysfillrect syscopyarea xenfs xen_privcmd mperf [ 78.565267] Pid: 0, comm: swapper/3 Tainted: G D W 3.7.0upstream #1 [ 78.565274] Call Trace: [ 78.565286] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 78.565296] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 78.565306] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 78.565315] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 78.565326] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 78.565336] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 [ 79.064941] BUG: scheduling while atomic: swapper/3/0/0x00000000 [ 79.064955] Modules linked in: xen_evtchn iscsi_boot_synsport_iscsi libcrc32c crc32c nouveau mxm_wmi wmi radeon ttm sg sr_mod sd_mod cdrom ata_generic ata_piix libata i915 crc32c_intel fbcon scsi_mod tileblit font bitblit softcursor atl1c drm_kms_helper video xen_blkfront xen_netfront fb_sys_fops sysimgblt sysfillrect syscopyarea xenfs xen_privcmd mperf [ 79.065127] Pid: 0, comm: swapper/3 Tainted: G D W 3.7.0upstream #1 [ 79.065134] Call Trace: [ 79.065145] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 79.065156] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 79.065166] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 79.065175] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 79.065186] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 79.065196] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 [ 80.564097] BUG: scheduling while atomic: swapper/3/0/0x00000000 [ 80.564111] Modules linked in: xen_evtchn iscsi_boot_syps sysimgblt sysfillrect syscopyarea xenfs xen_privcmd mperf [ 80.564283] Pid: 0, comm: swapper/3 Tainted: G D W 3.7.0upstream #1 [ 80.564290] Call Trace: [ 80.564303] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 80.564313] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 80.564323] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 80.564333] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 80.564344] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 80.564354] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 [ 81.063947] BUG: scheduling while atomic: swapper/3/0/0x00000000 [ 81.063961] Modules linked in: xen_evtchn iscsi_boot_syscsi libcrc32c crc32c nouveau mxm_wmi wmi radeon ttm sg sr_mod sd_mod cdrom ata_generic ata_piix libata i915 crc32c_intel fbcon scsi_mod tileblit font bitblit softcursor atl1c drm_kms_helper video xen_blkfront xen_netfront fb_sys_fops sysimgblt sysfillrect syscopyarea xenfs xen_privcmd mperf [ 81.064133] Pid: 0, comm: swapper/3 Tainted: G D W 3.7.0upstream #1 [ 81.064140] Call Trace: [ 81.064151] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 81.064161] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 81.064171] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 81.064181] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 81.064192] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 81.064202] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 [ 81.321438] BUG: scheduling while atomic: swapper/3/0/0x00000000 [ 81.321452] Modules linked in: xen_evtchn iscsi_boot_syum_wmi wmi radeon ttm sg sr_mod sd_mod cdrom ata_generic ata_piix libata i915 crc32c_intel fbcon scsi_mod tileblit font bitblit softcursor atl1c drm_kms_helper video xen_blkfront xen_netfront fb_sys_fops sysimgblt sysfillrect syscopyarea xenfs xen_privcmd mperf [ 81.321624] Pid: 0, comm: swapper/3 Tainted: G D W 3.7.0upstream #1 [ 81.321631] Call Trace: [ 81.321643] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 81.321653] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 81.321663] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 81.321672] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 81.321683] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 81.321693] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 [ 82.563080] BUG: scheduling while atomic: swapper/3/0/0x00000000 [ 82.563094] Modules linked in: xen_evtchn iscsi_boot_syfillrect syscopyarea xenfs xen_privcmd mperf [ 82.563266] Pid: 0, comm: swapper/3 Tainted: G D W 3.7.0upstream #1 [ 82.563272] Call Trace: [ 82.563284] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 82.563294] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 82.563304] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 82.563314] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 82.563324] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 82.563334] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 [ 83.062923] BUG: scheduling while atomic: swapper/3/0/0x00000000 [ 83.062937] Modules linked in: xen_evtchn iscsi_boot_sy2c crc32c nouveau mxm_wmi wmi radeon ttm sg sr_mod sd_mod cdrom ata_generic ata_piix libata i915 crc32c_intel fbcon scsi_mod tileblit font bitblit softcursor atl1c drm_kms_helper video xen_blkfront xen_netfront fb_sys_fops sysimgblt sysfillrect syscopyarea xenfs xen_privcmd mperf [ 83.063109] Pid: 0, comm: swapper/3 Tainted: G D W 3.7.0upstream #1 [ 83.063116] Call Trace: [ 83.063127] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 83.063138] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 83.063148] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 83.063157] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 83.063168] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 83.063178] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 [ 84.562098] BUG: scheduling while atomic: swapper/3/0/0x00000000 [ 84.562112] Modules linked in: xen_evtchn iscsi_boot_sy syscopyarea xenfs xen_privcmd mperf [ 84.562285] Pid: 0, comm: swapper/3 Tainted: G D W 3.7.0upstream #1 [ 84.562291] Call Trace: [ 84.562303] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 84.562313] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 84.562323] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 84.562332] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 84.562343] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 84.562353] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 [ 85.061964] BUG: scheduling while atomic: swapper/3/0/0x00000000 [ 85.061978] Modules linked in: xen_evtchn iscsi_boot_syuveau mxm_wmi wmi radeon ttm sg sr_mod sd_mod cdrom ata_generic ata_piix libata i915 crc32c_intel fbcon scsi_mod tileblit font bitblit softcursor atl1c drm_kms_helper video xen_blkfront xen_netfront fb_sys_fops sysimgblt sysfillrect syscopyarea xenfs xen_privcmd mperf [ 85.062150] Pid: 0, comm: swapper/3 Tainted: G D W 3.7.0upstream #1 [ 85.062157] Call Trace: [ 85.062169] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 85.062179] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 85.062189] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 85.062198] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 85.062209] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 85.062219] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 [ 85.319437] BUG: scheduling while atomic: swapper/3/0/0x00000000 [ 85.319451] Modules linked in: xen_evtchn iscsi_boot_sysr_mod sd_mod cdrom ata_generic ata_piix libata i915 crc32c_intel fbcon scsi_mod tileblit font bitblit softcursor atl1c drm_kms_helper video xen_blkfront xen_netfront fb_sys_fops sysimgblt sysfillrect syscopyarea xenfs xen_privcmd mperf [ 85.319623] Pid: 0, comm: swapper/3 Tainted: G D W 3.7.0upstream #1 [ 85.319629] Call Trace: [ 85.319641] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 85.319651] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 85.319661] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 85.319671] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 85.319682] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 85.319692] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 [ 86.561083] BUG: scheduling while atomic: swapper/3/0/0x00000000 [ 86.561097] Modules linked in: xen_evtchn iscsi_boot_sy xenfs xen_privcmd mperf [ 86.561269] Pid: 0, comm: swapper/3 Tainted: G D W 3.7.0upstream #1 [ 86.561275] Call Trace: [ 86.561287] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 86.561297] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 86.561307] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 86.561317] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 86.561327] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 86.561337] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 [ 87.060941] BUG: scheduling while atomic: swapper/3/0/0x00000000 [ 87.060955] Modules linked in: xen_evtchn iscsi_boot_syi wmi radeon ttm sg sr_mod sd_mod cdrom ata_generic ata_piix libata i915 crc32c_intel fbcon scsi_mod tileblit font bitblit softcursor atl1c drm_kms_helper video xen_blkfront xen_netfront fb_sys_fops sysimgblt sysfillrect syscopyarea xenfs xen_privcmd mperf [ 87.061128] Pid: 0, comm: swapper/3 Tainted: G D W 3.7.0upstream #1 [ 87.061135] Call Trace: [ 87.061147] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 87.061157] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 87.061167] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 87.061177] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 87.061187] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 87.061197] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 [ 88.560096] BUG: scheduling while atomic: swapper/3/0/0x00000000 [ 88.560110] Modules linked in: xen_evtchn iscsi_boot_syen_privcmd mperf [ 88.560282] Pid: 0, comm: swapper/3 Tainted: G D W 3.7.0upstream #1 [ 88.560288] Call Trace: [ 88.560300] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 88.560311] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 88.560320] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 88.560330] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 88.560341] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 88.560351] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 [ 89.059963] BUG: scheduling while atomic: swapper/3/0/0x00000000 [ 89.059977] Modules linked in: xen_evtchn iscsi_boot_sy ttm sg sr_mod sd_mod cdrom ata_generic ata_piix libata i915 crc32c_intel fbcon scsi_mod tileblit font bitblit softcursor atl1c drm_kms_helper video xen_blkfront xen_netfront fb_sys_fops sysimgblt sysfillrect syscopyarea xenfs xen_privcmd mperf [ 89.060153] Pid: 0, comm: swapper/3 Tainted: G D W 3.7.0upstream #1 [ 89.060160] Call Trace: [ 89.060172] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 89.060182] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 89.060192] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 89.060201] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 89.060212] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 89.060222] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 [ 89.317439] BUG: scheduling while atomic: swapper/3/0/0x00000000 [ 89.317452] Modules linked in: xen_evtchn iscsi_boot_sysfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi libcrc32c crc32c nouveau mxm_wmi wmi radeon ttm sg sr_mod sd_mod cdrom ata_generic ata_piix libata i915 crc32c_intel fbcon scsi_mod tileblit font bitblit softcursor atl1c drm_kms_helper video xen_blkfront xen_netfront fb_sys_fops sysimgblt sysfillrect syscopyarea xenfs xen_privcmd mperf [ 89.317625] Pid: 0, comm: swapper/3 Tainted: G D W 3.7.0upstream #1 [ 89.317631] Call Trace: [ 89.317643] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 89.317653] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 89.317663] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 89.317673] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 89.317684] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 89.317694] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 [ 90.559083] BUG: scheduling while atomic: swapper/3/0/0x00000000 [ 90.559097] Modules linked in: xen_evtchn iscsi_boot_sysfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi libcrc32c crc32c nouveau mxm_wmi wmi radeon ttm sg sr_mod sd_mod cdrom ata_generic ata_piix libata i915 crc32c_intel fbcon scsi_mod tileblit font bitblit softcursor atl1c drm_kms_helper video xen_blkfront xen_netfront fb_sys_fops sysimgblt sysfillrect syscopyarea xenfs xen_privcmd mperf [ 90.559269] Pid: 0, comm: swapper/3 Tainted: G D W 3.7.0upstream #1 [ 90.559276] Call Trace: [ 90.559288] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 90.559298] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 90.559308] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 90.559318] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 90.559328] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 90.559338] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 [ 91.058924] BUG: scheduling while atomic: swapper/3/0/0x00000000 [ 91.058937] Modules linked in: xen_evtchn iscsi_boot_sysr_mod sd_mod cdrom ata_generic ata_piix libata i915 crc32c_intel fbcon scsi_mod tileblit font bitblit softcursor atl1c drm_kms_helper video xen_blkfront xen_netfront fb_sys_fops sysimgblt sysfillrect syscopyarea xenfs xen_privcmd mperf [ 91.059110] Pid: 0, comm: swapper/3 Tainted: G D W 3.7.0upstream #1 [ 91.059117] Call Trace: [ 91.059128] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 [ 91.059139] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 [ 91.059148] [<ffffffff81635bb4>] schedule+0x24/0x70 [ 91.059158] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 [ 91.059169] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 [ 91.059179] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 telnet> Connection closed. [Connecting to system 7 ] _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
On Wed, 2012-12-19 at 19:24 +0000, Konrad Rzeszutek Wilk wrote:> # > # > # # echo 0 > /sys/devices/system/cpu/cpu3/online[J[44Decho 0 > /sys/devices/system/cpu/cpu3/online [39D1 > /sys/devices/system/cpu/cpu3/online[38D > /sys/devices/system/cpu/cpu3/online > [ 73.324141] installing Xen timer for CPU 3 > [ 73.324236] cpu 3 spinlock event irqc_intel fbcon scsi_mod tileblit font bitblit softcursor atl1c drm_kms_helper video xen_blkfront xen_netfront fb_sys_fops sysimgblt sysfillrect syscopyarea xenfs xen_privcmd mperf > [ 73.325026] Pid: 0, comm: swapper/3 Not tainted 3.7.0upstream #1 > [ 73.325033] Call Trace: > [ 73.325047] [<ffffffff810c2d1d>] __schedule_bug+0x4d/0x60 > [ 73.325058] [<ffffffff816359e2>] __schedule+0x6b2/0x7c0 > [ 73.325074] [<ffffffff81043d5d>] ? xen_force_evtchn_callback+0xd/0x10 > [ 73.325086] [<ffffffff81635bb4>] schedule+0x24/0x70 > [ 73.325097] [<ffffffff81056de9>] cpu_idle+0xc9/0xe0 > [ 73.325112] [<ffffffff810445b9>] ? xen_irq_enable_direct_reloc+0x4/0x4 > [ 73.325116] BUG: unable to handle kernel NULL pointer dereference[ 73.325122] [<ffffffff8162572b>] cpu_bringup_and_idle+0xe/0x10 >The thread is a bit off-topic now since we''re talking about PV at the moment... Please see cs 41bd956de3dfdc3a43708fe2e0c8096c69064a1e, it seems that the imbalance still exists with CONFIG_PREEMPT_COUNT=y. And I didn''t manage to reproduce the NULL pointer deference. Wei.
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