linux-kernel - Re: x86 git tree broken (bisected)

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Message-Id: <200804140141.45830.rjw@sisk.pl>
Date:	Mon, 14 Apr 2008 01:41:44 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	"Yinghai Lu" <yhlu.kernel@...il.com>, "Ingo Molnar" <mingo@...e.hu>
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"Pavel Machek" <pavel@....cz>,
	"Thomas Gleixner" <tglx@...utronix.de>, "H. Anvin" <hpa@...or.com>,
	"Arjan van de Ven" <arjan@...radead.org>
Subject: Re: x86 git tree broken (bisected)

On Monday, 14 of April 2008, Yinghai Lu wrote:
> On Sun, Apr 13, 2008 at 3:10 PM, Rafael J. Wysocki <rjw@...k.pl> wrote:
> >
> > On Monday, 14 of April 2008, Yinghai Lu wrote:
> >  > On Sun, Apr 13, 2008 at 9:12 AM, Rafael J. Wysocki <rjw@...k.pl> wrote:
> >  > ...
> >  > >  > can you try to apply the patch i sent to you about agp bridge order
> >  > >  > reading for buggy silicon?
> >  > >  >
> >  > >  > Please boot kernel with "debug"...
> >  > >  >
> >  > >  > I want to verify if you can get
> >  > >  >
> >  > >  > "
> >  > >  > Aperture conflicts with PCI mapping.
> >  > >  > "
> >  > >  >
> >  > >  > in your boot log...
> >  > >
> >  > >  It's not present in there:
> >  > >
> >  > >  rafael@...ercik:~> grep Aperture failing-with-patch-dmesg.log
> >  > >  Aperture too small (32 MB)
> >  > >  Aperture from AGP @ de000000 size 4096 MB (APSIZE 0)
> >  > >  Aperture too small (0 MB)
> >  > >  agpgart: Aperture pointing to RAM
> >  > >  agpgart: Aperture from AGP @ de000000 size 4096 MB
> >  > >  agpgart: Aperture too small (0 MB)
> >  > >
> >  > >  Full dmesg output attached.
> >  >
> >  > please check attached debug patch. and check if you can change GART
> >  > size in your BIOS setup to 64M instead of 32M
> >
> >  Hm, what tree am I supposed to apply it too:
> >  (1) current x86 git
> >  (2) current x86 git w/ some of your previous patches (which ones in this case)
> >  (3) failing (old) x86 git
> >  (4) failing (old) x86 git w/ some of your previous patches (which ones in this
> >     case)?
> 
> (1) current x86.git

Well, unfortunately current x86.git doesn't even boot on the affected box.
It 'cannot open root device "md1" or unknown-block (0,0)' (Ingo, any ideas?).

Today I have to take some sleep, so I'll try to debug it tomorrow, unless
someone else does it earlier.

Thanks,
Rafael
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