Laurent Riffard wrote:
> Le 21.11.2007 23:41, Andrew Morton a écrit :
>> On Wed, 21 Nov 2007 22:45:22 +0100
>> Laurent Riffard <[email protected]> wrote:
>>
>>> Le 21.11.2007 05:45, Andrew Morton a écrit :
>>>> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.24-rc3/2.6.24-rc3-mm1/
>>> Hello,
>>>
>>> My system hangs shortly after I logged in Gnome desktop. SysRq-W shows
>>> that a bunch of task are blocked in "D" state, they seem to wait for
>>> some I/O completion. I can try to hand-copy some data if requested.
>>>
>>> I found these messages in dmesg:
>>>
>>> ~$ grep -C2 end_request dmesg-2.6.24-rc3-mm1
>>> EXT3-fs: mounted filesystem with ordered data mode.
>>> sd 0:0:0:0: [sda] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK
>>> end_request: I/O error, dev sda, sector 16460
>>> ReiserFS: sda7: found reiserfs format "3.6" with standard journal
>>> ReiserFS: sda7: using ordered data mode
>>> --
>>> ReiserFS: sda7: Using r5 hash to sort names
>>> sd 0:0:1:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK
>>> end_request: I/O error, dev sdb, sector 19632
>>> sd 0:0:1:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK
>>> end_request: I/O error, dev sdb, sector 40037363
>>> Adding 1048568k swap on /dev/mapper/vglinux1-lvswap. Priority:-1 extents:1 across:1048568k
>>> lp0: using parport0 (interrupt-driven).
>>>
>>> These errors occur *only* with 2.6.24-rc3-mm1, they are 100% reproducible.
>>> 2.6.24-rc3 and 2.6.24-rc2-mm1 are fine.
>>>
>>> Maybe something is broken in pata_via driver ?
>>>
>> Could be - libata-reimplement-ata_acpi_cbl_80wire-using-ata_acpi_gtm_xfermask.patch
>> and pata_amd-pata_via-de-couple-programming-of-pio-mwdma-and-udma-timings.patch
>> touch pata_via.c.
>
> None of the above...
>
> I did a bisection, it spotted git-scsi-misc.patch.
> I just run 2.6.24-rc3-mm1 + revert-git-scsi-misc.patch, and it works fine.
>
> I guess commit 8655a546c83fc43f0a73416bbd126d02de7ad6c0 "[SCSI] Do not
> requeue requests if REQ_FAILFAST is set" is the real culprit. The other
> commits are touching documentation or drivers I don't use. I'll try
> to revert only this one this evening.
>
Hmm. Weird. I'll have a look into it. Apparently I'll be returning an error where
I shouldn't. Checking ...
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
[email protected] +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Markus Rex, HRB 16746 (AG Nürnberg)
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