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From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
To: Stephen Rothwell <sfr@canb.auug.org.au>
Subject: Re: mm/ipw2200 regression (was: Re: linux-next: Tree for August 6)
Date: Sun, 16 Aug 2009 12:17:12 +0200
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Cc: linux-mm@kvack.org, linux-next@vger.kernel.org,
       LKML <linux-kernel@vger.kernel.org>, "Rafael J. Wysocki" <rjw@sisk.pl>,
       "akpm@linux-foundation.org" <akpm@linux-foundation.org>
References: <20090806192209.513abec7.sfr@canb.auug.org.au> <200908151856.48596.bzolnier@gmail.com> <20090816173101.6e47b702.sfr@canb.auug.org.au>
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Hi,

On Sunday 16 August 2009 09:31:01 Stephen Rothwell wrote:
> Hi Bart,
> 
> On Sat, 15 Aug 2009 18:56:48 +0200 Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> wrote:
> >
> > The bug managed to slip into Linus' tree..
> > 
> > ipw2200: Firmware error detected.  Restarting.
> > ipw2200/0: page allocation failure. order:6, mode:0x8020
> > Pid: 945, comm: ipw2200/0 Not tainted 2.6.31-rc6-dirty #69
>                                                    ^^^^^
> So, this is rc6 plus what?  (just in case it is relevant).

In this case plus upcoming staging/rt{286,287,307}0 patches (irrelevant,
they are not used on this machine and the problem happened many times
with vanilla -next kernels in the past)..

After going through mm commits in Linus' tree I think that the bug came
the other way around, from akpm's tree to Linus' tree and then to -next
(page allocator changes seem to match "the suspect's profile")..