* Re: [Bugme-new] [Bug 5378] New: aic7xxx deadlock/freeze on Adaptec AIC-7899P
[not found] <200510061626.j96GQxFD025499@fire-1.osdl.org>
@ 2005-10-11 1:41 ` Andrew Morton
2005-10-11 3:00 ` James Bottomley
0 siblings, 1 reply; 2+ messages in thread
From: Andrew Morton @ 2005-10-11 1:41 UTC (permalink / raw)
To: bugme-daemon@kernel-bugs.osdl.org; +Cc: linux-scsi
bugme-daemon@kernel-bugs.osdl.org wrote:
>
> http://bugzilla.kernel.org/show_bug.cgi?id=5378
>
> Summary: aic7xxx deadlock/freeze on Adaptec AIC-7899P
> Kernel Version: 2.6.13.3
> Status: NEW
> Severity: high
> Owner: andmike@us.ibm.com
> Submitter: szpajder@staszic.waw.pl
>
>
> The following messages appeared in dmesg:
>
> scsi0:0:1:0: Attempting to queue an ABORT message
> CDB: 0x28 0x0 0x0 0xab 0x8b 0x99 0x0 0x0 0x8 0x0
> scsi0: At time of recovery, card was not paused
> >>>>>>>>>>>>>>>>>> Dump Card State Begins <<<<<<<<<<<<<<<<<
> scsi0: Dumping Card State while idle, at SEQADDR 0x9
> Card was paused
> [...] (entire dump attached)
>
> At the time of these errors, load average exceeded 30. After issuing SCSI RESET,
> the system went back to normal. The problem reappeared several hours later -
> load average reached 140 and all the tasks hung waiting for I/O. I was waiting
> for SCSI RESET, which did not occur this time - after about 3 minutes I had to
> reboot with sysrq.
>
> The problem ocurred about a day after upgrading from 2.6.12.4 (which was running
> fine for over 50 days) to 2.6.13.3. Hardware: Intel SDS2 mainboard with Adaptec
> AIC-7899P SCSI onboard, 4 x Seagate ST336753LW, software RAID-5, configs, lspci,
> etc - attached. The main difference between startup dmesgs is that all hard
> drives were set up as asynchronous during bootup - this didn't occur under
> 2.6.12.4. So I went back to 2.6.12.4 for now, it seems to be ok.
ISTR that there have been several reports of this regression.
What could have caused this?
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