thr3ads.net - freebsd stable - FreeBSD 9.1 RC1 and CAM issues with old SCSI drive [Aug 2012]

If this information is useful, please help other people find it:
Share via:

kirk russell

2012-Aug-25 14:48 UTC

FreeBSD 9.1 RC1 and CAM issues with old SCSI drive

Hi,

I booted FreeBSD 9.1-RC1 on one of my older scratch i386 PCs and
noticed this regression -- the SCSI disk is unusable:

FreeBSD 9.1-RC1 #0: Tue Aug 14 03:56:40 UTC 2012
    root@obrian.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC i386
ahc0: <Adaptec 2940 Ultra SCSI adapter> port 0x6400-0x64ff mem
0xd3000000-0xd3000fff irq 3 at device 13.0 on pci0
aic7880: Ultra Wide Channel A, SCSI Id=7, 16/253 SCBs
(probe0:ahc0:0:0:0): INQUIRY. CDB: 12 0 0 1 0 0
(probe0:ahc0:0:0:0): CAM status: SCSI Status Error
(probe0:ahc0:0:0:0): SCSI status: Check Condition
(probe0:ahc0:0:0:0): SCSI sense: ILLEGAL REQUEST asc:24,0 (Invalid field in CDB)
(probe0:ahc0:0:0:0): Command Specific Info: 0xffffffff
(probe0:ahc0:0:0:0): Command byte 3 is invalid
(probe0:ahc0:0:0:0): Error 22, Unretryable error
[da0 never appears]


This drive will be found with 9.0:

FreeBSD 9.0-RELEASE #0: Tue Jan  3 07:15:25 UTC 2012
    root@obrian.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC i386
ahc0: <Adaptec 2940 Ultra SCSI adapter> port 0x6400-0x64ff mem
0xd3000000-0xd3000fff irq 3 at device 13.0 on pci0
aic7880: Ultra Wide Channel A, SCSI Id=7, 16/253 SCBs
(probe0:ahc0:0:0:0): inquiry data fails comparison at DV1 step
(probe0:ahc0:0:0:0): inquiry data fails comparison at DV1 step
(probe0:ahc0:0:0:0): inquiry data fails comparison at DV1 step
da0 at ahc0 bus 0 scbus2 target 0 lun 0
da0: <COMPAQPC WDE9100W 1.01> Fixed Direct Access SCSI-2 device
da0: 6.600MB/s transfers (16bit)
da0: Command Queueing enabled
da0: 8678MB (17773500 512 byte sectors: 255H 63S/T 1106C)


That this drive is downgraded to 6.600MB/s appears to be known issue
--  http://www.freebsd.org/cgi/query-pr.cgi?pr=128245
This appeared to work better with 6.1

FreeBSD 6.1-RELEASE #0: Mon May 29 19:39:51 EDT 2006
ahc1: <Adaptec 2940 Ultra SCSI adapter> port 0x9800-0x98ff mem
0xe3800000-0xe3800fff irq 11 at device 11.0 on pci0
da0: <COMPAQPC WDE9100W 1.01> Fixed Direct Access SCSI-2 device
da0: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing Enabled
da0: 8678MB (17773500 512 byte sectors: 255H 63S/T 1106C)



-- 
Kirk Russell            <kirk@ba23.org>           http://www.ba23.org/

Alexander Motin

2012-Sep-08 11:30 UTC

head link

FreeBSD 9.1 RC1 and CAM issues with old SCSI drive

Hi.

It seems like both of your problems have the same cause: device report 
wrong size of INQUIRY data, that causes failure on attempt to fetch it. 
With FreeBSD 9.0 it caused domain validation failures and so reduced 
transfer rate, on 9.1 it also causes detection failure. I am not sure 
why detection worked on 9.0, it needs some deeper code comparison, but I 
think it is mostly device problem.

Could you send me output of such commands from FreeBSD 9.0:
camcontrol cmd da0 -vEc "12 00 00 00 24 00" -i 36 - | hd
camcontrol cmd da0 -vEc "12 00 00 00 fe 00" -i 254 - | hd
camcontrol cmd da0 -vEc "12 00 00 01 00 00" -i 256 - | hd

-- 
Alexander Motin

kirk russell

2012-Sep-09 13:25 UTC

head link

FreeBSD 9.1 RC1 and CAM issues with old SCSI drive

On Sat, Sep 8, 2012 at 12:29 PM, Alexander Motin <mav@freebsd.org>
wrote:> Hi.
>
> It seems like both of your problems have the same cause: device report
wrong
> size of INQUIRY data, that causes failure on attempt to fetch it. With
> FreeBSD 9.0 it caused domain validation failures and so reduced transfer
> rate, on 9.1 it also causes detection failure. I am not sure why detection
> worked on 9.0, it needs some deeper code comparison, but I think it is
> mostly device problem.
>
> Could you send me output of such commands from FreeBSD 9.0:
> camcontrol cmd da0 -vEc "12 00 00 00 24 00" -i 36 - | hd
> camcontrol cmd da0 -vEc "12 00 00 00 fe 00" -i 254 - | hd
> camcontrol cmd da0 -vEc "12 00 00 01 00 00" -i 256 - | hd
>
> --
> Alexander Motin
This is running 9.0-RELEASE.

# camcontrol cmd da0 -vEc "12 00 00 00 24 00" -i 36 - | hd
00000000  00 00 02 02 fa 00 00 3e  43 4f 4d 50 41 51 50 43 
|.......>COMPAQPC|
00000010  57 44 45 39 31 30 30 57  20 20 20 20 20 20 20 20  |WDE9100W        |
00000020  31 2e 30 31                                       |1.01|
00000024
# camcontrol cmd da0 -vEc "12 00 00 00 fe 00" -i 254 - | hd
00000000  00 00 02 02 fa 00 00 3e  43 4f 4d 50 41 51 50 43 
|.......>COMPAQPC|
00000010  57 44 45 39 31 30 30 57  20 20 20 20 20 20 20 20  |WDE9100W        |
00000020  31 2e 30 31 32 33 30 31  57 53 37 30 32 30 33 37  |1.012301WS702037|
00000030  32 34 39 33 00 00 00 00  20 20 20 20 20 20 20 20  |2493....        |
00000040  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
*
00000060  57 44 45 39 31 30 30 2d  36 30 30 35 44 30 20 20  |WDE9100-6005D0  |
00000070  34 30 36 31 30 30 31 31  39 31 30 30 32 43 30 20  |4061001191002C0 |
00000080  32 34 30 38 00 00 00 00  00 00 00 00 00 00 00 00  |2408............|
00000090  00 00 00 00 4e 32 30 35  30 30 39 39 30 32 35 35  |....N20500990255|
000000a0  33 20 20 20 50 20 30 30  00 00 00 00 00 00 42 41  |3   P 00......BA|
000000b0  43 43 42 45 4b 43 31 39  39 38 30 38 32 38 57 53  |CCBEKC19980828WS|
000000c0  36 30 44 20 04 03 00 04  02 01 00 00 00 00 00 00  |60D ............|
000000d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
000000f0
# camcontrol cmd da0 -vEc "12 00 00 01 00 00" -i 256 - | hd
(pass1:ahc0:0:0:0): INQUIRY. CDB: 12 0 0 1 0 0
(pass1:ahc0:0:0:0): CAM status: SCSI Status Error
(pass1:ahc0:0:0:0): SCSI status: Check Condition
(pass1:ahc0:0:0:0): SCSI sense: ILLEGAL REQUEST asc:24,0 (Invalid field in CDB)
(pass1:ahc0:0:0:0): Command Specific Info: 0xffffffff
(pass1:ahc0:0:0:0): Command byte 3 is invalid
camcontrol: error sending command
(pass1:ahc0:0:0:0): INQUIRY. CDB: 12 0 0 1 0 0
(pass1:ahc0:0:0:0): CAM status: SCSI Status Error
(pass1:ahc0:0:0:0): SCSI status: Check Condition
(pass1:ahc0:0:0:0): SCSI sense: ILLEGAL REQUEST asc:24,0 (Invalid field in CDB)
(pass1:ahc0:0:0:0): Command Specific Info: 0xffffffff
(pass1:ahc0:0:0:0): Command byte 3 is invalid


-- 
Kirk Russell            <kirk@ba23.org>           http://www.ba23.org/

Alexander Motin

2012-Sep-09 15:54 UTC

head link

FreeBSD 9.1 RC1 and CAM issues with old SCSI drive

On 09.09.2012 16:25, kirk russell wrote:> On Sat, Sep 8, 2012 at 12:29 PM, Alexander Motin <mav@freebsd.org>
wrote:
>> Hi.
>>
>> It seems like both of your problems have the same cause: device report
wrong
>> size of INQUIRY data, that causes failure on attempt to fetch it. With
>> FreeBSD 9.0 it caused domain validation failures and so reduced
transfer
>> rate, on 9.1 it also causes detection failure. I am not sure why
detection
>> worked on 9.0, it needs some deeper code comparison, but I think it is
>> mostly device problem.
>>
>> Could you send me output of such commands from FreeBSD 9.0:
>> camcontrol cmd da0 -vEc "12 00 00 00 24 00" -i 36 - | hd
>> camcontrol cmd da0 -vEc "12 00 00 00 fe 00" -i 254 - | hd
>> camcontrol cmd da0 -vEc "12 00 00 01 00 00" -i 256 - | hd
>>
>> --
>> Alexander Motin
>
> This is running 9.0-RELEASE.
>
> # camcontrol cmd da0 -vEc "12 00 00 00 24 00" -i 36 - | hd
> 00000000  00 00 02 02 fa 00 00 3e  43 4f 4d 50 41 51 50 43 
|.......>COMPAQPC|
> 00000010  57 44 45 39 31 30 30 57  20 20 20 20 20 20 20 20  |WDE9100W      
|
> 00000020  31 2e 30 31                                       |1.01|
> 00000024
> # camcontrol cmd da0 -vEc "12 00 00 00 fe 00" -i 254 - | hd
> 00000000  00 00 02 02 fa 00 00 3e  43 4f 4d 50 41 51 50 43 
|.......>COMPAQPC|
> 00000010  57 44 45 39 31 30 30 57  20 20 20 20 20 20 20 20  |WDE9100W      
|
> 00000020  31 2e 30 31 32 33 30 31  57 53 37 30 32 30 33 37 
|1.012301WS702037|
> 00000030  32 34 39 33 00 00 00 00  20 20 20 20 20 20 20 20  |2493....      
|
> 00000040  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |              
|
> *
> 00000060  57 44 45 39 31 30 30 2d  36 30 30 35 44 30 20 20  |WDE9100-6005D0
|
> 00000070  34 30 36 31 30 30 31 31  39 31 30 30 32 43 30 20 
|4061001191002C0 |
> 00000080  32 34 30 38 00 00 00 00  00 00 00 00 00 00 00 00 
|2408............|
> 00000090  00 00 00 00 4e 32 30 35  30 30 39 39 30 32 35 35 
|....N20500990255|
> 000000a0  33 20 20 20 50 20 30 30  00 00 00 00 00 00 42 41  |3   P
00......BA|
> 000000b0  43 43 42 45 4b 43 31 39  39 38 30 38 32 38 57 53 
|CCBEKC19980828WS|
> 000000c0  36 30 44 20 04 03 00 04  02 01 00 00 00 00 00 00  |60D
............|
> 000000d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00 
|................|
> *
> 000000f0
> # camcontrol cmd da0 -vEc "12 00 00 01 00 00" -i 256 - | hd
> (pass1:ahc0:0:0:0): INQUIRY. CDB: 12 0 0 1 0 0
> (pass1:ahc0:0:0:0): CAM status: SCSI Status Error
> (pass1:ahc0:0:0:0): SCSI status: Check Condition
> (pass1:ahc0:0:0:0): SCSI sense: ILLEGAL REQUEST asc:24,0 (Invalid field in
CDB)
> (pass1:ahc0:0:0:0): Command Specific Info: 0xffffffff
> (pass1:ahc0:0:0:0): Command byte 3 is invalid
> camcontrol: error sending command
> (pass1:ahc0:0:0:0): INQUIRY. CDB: 12 0 0 1 0 0
> (pass1:ahc0:0:0:0): CAM status: SCSI Status Error
> (pass1:ahc0:0:0:0): SCSI status: Check Condition
> (pass1:ahc0:0:0:0): SCSI sense: ILLEGAL REQUEST asc:24,0 (Invalid field in
CDB)
> (pass1:ahc0:0:0:0): Command Specific Info: 0xffffffff
> (pass1:ahc0:0:0:0): Command byte 3 is invalid
It seems that problem can be in our SCSI code that rounds inquiry data 
size up to even. Please try to comment out line
	inquiry_len = roundup2(inquiry_len, 2);
in sys/cam/scsi/scsi_xpt.c and rebuild the kernel. It should probably 
fix both device detection and transfer speed.

-- 
Alexander Motin

kirk russell

2012-Sep-09 17:12 UTC

head link

FreeBSD 9.1 RC1 and CAM issues with old SCSI drive

On Sun, Sep 9, 2012 at 4:54 PM, Alexander Motin <mav@freebsd.org>
wrote:> On 09.09.2012 16:25, kirk russell wrote:
>>
>> On Sat, Sep 8, 2012 at 12:29 PM, Alexander Motin
<mav@freebsd.org> wrote:
>>>
>>> Hi.
>>>
>>> It seems like both of your problems have the same cause: device
report
>>> wrong
>>> size of INQUIRY data, that causes failure on attempt to fetch it.
With
>>> FreeBSD 9.0 it caused domain validation failures and so reduced
transfer
>>> rate, on 9.1 it also causes detection failure. I am not sure why
>>> detection
>>> worked on 9.0, it needs some deeper code comparison, but I think it
is
>>> mostly device problem.
>>>
>>> Could you send me output of such commands from FreeBSD 9.0:
>>> camcontrol cmd da0 -vEc "12 00 00 00 24 00" -i 36 - | hd
>>> camcontrol cmd da0 -vEc "12 00 00 00 fe 00" -i 254 - | hd
>>> camcontrol cmd da0 -vEc "12 00 00 01 00 00" -i 256 - | hd
>>>
>>> --
>>> Alexander Motin
>>
>>
[.....]
>
> It seems that problem can be in our SCSI code that rounds inquiry data size
> up to even. Please try to comment out line
>         inquiry_len = roundup2(inquiry_len, 2);
> in sys/cam/scsi/scsi_xpt.c and rebuild the kernel. It should probably fix
> both device detection and transfer speed.
>
This is running 9.0-RELEASE, with your patch to scsi_xpt.c:
da0 at ahc0 bus 0 scbus2 target 0 lun 0
da0: <COMPAQPC WDE9100W 1.01> Fixed Direct Access SCSI-2 device
da0: 40.000MB/s transfers (20.000MHz, offset 8, 16bit)
da0: Command Queueing enabled
da0: 8678MB (17773500 512 byte sectors: 255H 63S/T 1106C)

This is running FreeBSD 9.1-RC1, with your patch to scsi_xpt.c:
da0 at ahc0 bus 0 scbus2 target 0 lun 0
da0: <COMPAQPC WDE9100W 1.01> Fixed Direct Access SCSI-2 device
da0: 40.000MB/s transfers (20.000MHz, offset 8, 16bit)
da0: Command Queueing enabled
da0: 8678MB (17773500 512 byte sectors: 255H 63S/T 1106C)


-- 
Kirk Russell            <kirk@ba23.org>           http://www.ba23.org/

freebsd stable - Aug 2012 - FreeBSD 9.1 RC1 and CAM issues with old SCSI drive

FreeBSD 9.1 RC1 and CAM issues with old SCSI drive

FreeBSD 9.1 RC1 and CAM issues with old SCSI drive

FreeBSD 9.1 RC1 and CAM issues with old SCSI drive

FreeBSD 9.1 RC1 and CAM issues with old SCSI drive

FreeBSD 9.1 RC1 and CAM issues with old SCSI drive