linux-kernel - Re: [PATCH] Fix 'flush_old_exec()/setup_new

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Date:	Wed, 3 Feb 2010 21:39:31 -0800 (PST)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Ben Hutchings <ben@...adent.org.uk>
cc:	stable@...nel.org, LKML <linux-kernel@...r.kernel.org>,
	stable-review@...nel.org
Subject: Re: [PATCH] Fix 'flush_old_exec()/setup_new_exec()' split



On Thu, 4 Feb 2010, Ben Hutchings wrote:
> 
> I'm using Debian i386 (i.e. 32-bit userland) with a 64-bit kernel.
> After applying commit 221af7f to Debian's kernel source (approximately
> equivalent to 2.6.32.7), the kernel fails to exec init.  After commit
> 7ab02af it can exec init but that immediately segfaults:

It sounds like you have picked individual commits.

But you don't mention commit 05d43ed8a, which is also a required part of 
the series.

So you _should_ have a combination of
 - 221af7f87 ("Split 'flush_old_exec' into two functions")
 - 05d43ed8a ("x86: get rid of the insane TIF_ABI_PENDING bit")
 - 7ab02af42 ("Fix 'flush_old_exec()/setup_new_exec()' split")

(and there are also additional sparc/ppc versions of that TIF_ABI_PENDING 
bit removal, but they shouldn't matter on your system)

		Linus
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