linux-kernel - Re: Kernel 2.6.20 does not work anymore with SCSI or SATA on old Opteron / Xeon servers

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Message-Id: <20070319232732.854d7120.akpm@linux-foundation.org>
Date:	Mon, 19 Mar 2007 23:27:32 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Stefan Priebe <stefan@...e.be>
Cc:	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org
Subject: Re: Kernel 2.6.20 does not work anymore with SCSI or SATA on old
 Opteron / Xeon servers

On Sun, 18 Mar 2007 21:50:46 +0100 Stefan Priebe <stefan@...e.be> wrote:

> Hello!
> 
> We've a very strange Problem with Kernel 2.6.20.x
> 
> If i try to access a SCSI or SATA Disk (tested with Adaptec U320 
> ASC-29320, ICP Vortex 9024, Promise TX300) the whole server hangs - no 
> output - no error on the screen - but it hangs completely. But it does 
> not happen on all our systems affected are only old 604pin xeons and 
> socket 940 Opterons. Socket F Opteron or 771 Xeons does work fine.
> 
> I've also testet apci=off pci=routeirq but both does not help. The 
> systems work fine with 2.6.19.x and before.

Well that's a bit sad.

Could you please set up netconsole
(Documentation/networking/netconsole.txt) and add initcall_debug to the
kernel boot command line and then send us the full bootup logs?

(Even better: serial console with earlyprintk).

If that doesn't shed any light, we might have to ask you to perform a
git-bisect search to find the buggy commit, I'm afraid.
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