linux-kernel - Re: 2.6.23-rc4-mm1

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Date:	Tue, 11 Sep 2007 04:42:53 +0900
From:	FUJITA Tomonori <tomof@....org>
To:	akpm@...ux-foundation.org
Cc:	just.for.lkml@...glemail.com, apw@...dowen.org,
	linux-kernel@...r.kernel.org, mel@....ul.ie, jens.axboe@...cle.com,
	linux-scsi@...r.kernel.org, linux-ide@...r.kernel.org,
	fujita.tomonori@....ntt.co.jp
Subject: Re: 2.6.23-rc4-mm1

On Mon, 10 Sep 2007 12:20:38 -0700
Andrew Morton <akpm@...ux-foundation.org> wrote:

> On Mon, 10 Sep 2007 20:59:49 +0200 "Torsten Kaiser" <just.for.lkml@...glemail.com> wrote:
> 
> > On 9/10/07, Andrew Morton <akpm@...ux-foundation.org> wrote:
> > > On Mon, 10 Sep 2007 18:49:26 +0100 Andy Whitcroft <apw@...dowen.org> wrote:
> > >
> > > > I have a couple of old NUMA-Q systems which are unable to read their
> > > > boot disks with 2.6.23-rc4-mm1.  The disks appear to be recognised and
> > > > even the partition tables read correctly, and then they go pop:
> > 
> > I reported a similar problem on Sep 1, but until now got no response.
> 
> You still haven't had a response ;)  Let's add a cc.
> 
> Oh, you reported it against 2.6.23-rc4-mm1
> (http://lkml.org/lkml/2007/9/1/92) and I did cc linux-ide in my response.
> 
> I'll continue to point out where this sort of thing occurs because last
> week I was told that a reson why so many bug reports are ignored is because
> "linux-kernel has too much traffic".

many SCSI people don't subscribe to linux-kernel, I think.


> > The system boots, reads the partition tables, starts the RAID and then
> > kicks one drive out because of errors.
> 
> Andy is using qla1280.  You're using sata.  So it's probably a different
> bug, with the same symptoms.

This might be a sg chaining bug too (probabaly sg chaining libata
patch).

Can you try the following patch that I've just sent:

http://lkml.org/lkml/2007/9/10/251

The patch also disables chaining sg list for libata.
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