linux-kernel - Re: kexec refuses to boot latest -mm

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Message-Id: <20080105181742.7525fec6.akpm@linux-foundation.org>
Date:	Sat, 5 Jan 2008 18:17:42 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Dhaval Giani <dhaval@...ux.vnet.ibm.com>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>, Vivek Goyal <vgoyal@...hat.com>,
	hbabu@...ibm.com, lkml <linux-kernel@...r.kernel.org>,
	kexec@...ts.infradead.org, Ingo Molnar <mingo@...e.hu>,
	maneesh@...ux.vnet.ibm.com, tglx@...utronix.de
Subject: Re: kexec refuses to boot latest -mm

On Fri, 4 Jan 2008 21:24:15 +0530 Dhaval Giani <dhaval@...ux.vnet.ibm.com> wrote:

> On Fri, Jan 04, 2008 at 05:58:16PM +0530, Dhaval Giani wrote:
> > On Thu, Jan 03, 2008 at 10:42:00PM +0100, Rafael J. Wysocki wrote:
> > > On Thursday, 3 of January 2008, Dhaval Giani wrote:
> > > > On Mon, Dec 31, 2007 at 10:08:43AM -0500, Vivek Goyal wrote:
> > > > > On Sat, Dec 29, 2007 at 11:11:13AM +0530, Dhaval Giani wrote:
> > > > > > On Fri, Dec 28, 2007 at 09:27:39AM -0500, Vivek Goyal wrote:
> > > > > > > On Fri, Dec 28, 2007 at 06:15:32PM +0530, Dhaval Giani wrote:
> > > > > > > > Hi Vivek,
> > > > > > > > 
> > 
> > I've no clue what I managed to do wrong last night, probably tried to boot
> > 2.6.24-rc6-mm1 thinking it was 2.6.24-rc6. 2.6.24-rc6 boots, but -mm
> > does not. Sorry for the noise.
> > 
> 
> So I went ahead and bisected -mm, and the culprit is git-x86. It boots
> fine before it, but with git-x86 applied, it fails to boot.
> 
> Ingo/Thomas, could you please point me to the git-x86 tree so that I can
> bisect it?

Every git-foo.patch in -mm identifies where it came from in its changelog.

The first few lines of
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.24-rc6/2.6.24-rc6-mm1/broken-out/git-x86.patch
are:

GIT 27197ba67cbaa0e22598a10c82b10dacb1309ed8 irqs_disabled

git+ssh://master.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git#mm



I'm not sure what the "irqs_disabled\n\n" is doing there: maybe I added it
by mistake.  2.6.24-rc5-mm1 correctly had

GIT b668e28b74558b3a8277b5fde363ae5f803b36f0 git+ssh://master.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git#mm

But still.  The git URL is always there.
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