On Wed, 6 Feb 2008 09:40:15 -0800 (PST) [EMAIL PROTECTED] wrote:
> http://bugzilla.kernel.org/show_bug.cgi?id=9901
>
> Summary: kernel panic in stex modules (?)
> Product: IO/Storage
> Version: 2.5
> KernelVersion: 2.6.24
> Platform: All
> OS/Version: Linux
> Tree: Mainline
> Status: NEW
> Severity: normal
> Priority: P1
> Component: Serial ATA
> AssignedTo: [EMAIL PROTECTED]
> ReportedBy: [EMAIL PROTECTED]
>
>
> Latest working kernel version: 2.6.23-r6
> Earliest failing kernel version: 2.6.24
> Distribution: Gentoo
> Hardware Environment: Core2D E6600, Asus p5B Dlx, 2G DDR2 667, Promise ST
> EX4350
> Software Environment: GCC 4.2.3/4.1.2, CFLAGS="-O2"
>
> Problem Description:
> The problem is frequent kernel panics within the same module. Can't say what
> it
> is, but looks like it is related to dma and promise driver.
> The first culprit, the memory, is ok, 8 hours of memtest passed without
> errors.
> Before, kernel 2.6.23-gentoo-r6, compiled with GCC 4.1.2 worked just fine,
> then
> after upgrade to 4.2.2 th bug appeared. Upgrade to 2.6.24 didn't solve the
> problem. Switching back to GCC 4.1.2 made things better for a moment, crashes
> became less frequent and I thought compiler was the cause. But today system
> crashed again with same symptoms.
> Sorry, but I can't save crash log, so I'll provide screen "shot":
> http://img238.imageshack.us/my.php?image=p2030030ki1.jpg
>
> Steps to reproduce:
> Boot, start FTP-server, load RAID with heavy input, in some hours it will
> crash. With pure reads system can run several days, heavy write load kills it
> much too easier.
>
The supertrak driver has regressed in 2.6.24. And
commit 9cb83c7529d929c00f37d821daed1942a1b20602
Author: FUJITA Tomonori <[EMAIL PROTECTED]>
Date: Tue Oct 16 11:24:32 2007 +0200
[SCSI] add use_sg_chaining option to scsi_host_template
looks a likely candidate.
And this:
commit d3f46f39b7092594b498abc12f0c73b0b9913bde
Author: James Bottomley <[EMAIL PROTECTED]>
Date: Tue Jan 15 11:11:46 2008 -0600
[SCSI] remove use_sg_chaining
from 2.6.25 looks to be a likely fix for it. Should it be backported?
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