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Message-Id: <20071208021105.cc6d5f0a.akpm@linux-foundation.org>
Date: Sat, 8 Dec 2007 02:11:05 -0800
From: Andrew Morton <akpm@...ux-foundation.org>
To: Ingo Molnar <mingo@...e.hu>
Cc: "Rafael J. Wysocki" <rjw@...k.pl>,
LKML <linux-kernel@...r.kernel.org>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Matt Mackall <mpm@...enic.com>
Subject: Re: tipc_init(), WARNING: at arch/x86/mm/highmem_32.c:52,
[2.6.24-rc4-git5: Reported regressions from 2.6.23]
On Sat, 8 Dec 2007 10:30:39 +0100 Ingo Molnar <mingo@...e.hu> wrote:
>
> * Rafael J. Wysocki <rjw@...k.pl> wrote:
>
> > Subject : tipc_init(), WARNING: at arch/x86/mm/highmem_32.c:52 kmap_atomic_prot()
> > Submitter : Ingo Molnar <mingo@...e.hu>
> > References : http://lkml.org/lkml/2007/11/29/157
> > http://bugzilla.kernel.org/show_bug.cgi?id=9497
> > Handled-By : Matt Mackall <mpm@...enic.com>
> > Patch : http://lkml.org/lkml/2007/11/29/387
>
> Matt, the above bug is still occuring en masse during random bootups:
>
> [ 67.828312] WARNING: at arch/x86/mm/highmem_32.c:52 kmap_atomic_prot()
> WARNING: at arch/x86/mm/highmem_32.c:52 kmap_atomic_prot()
> WARNING: at arch/x86/mm/highmem_32.c:52 kmap_atomic_prot()
> [ 41.270905] WARNING: at arch/x86/mm/highmem_32.c:52 kmap_atomic_prot()
> WARNING: at arch/x86/mm/highmem_32.c:52 kmap_atomic_prot()
> WARNING: at arch/x86/mm/highmem_32.c:52 kmap_atomic_prot()
> [ 82.378714] WARNING: at arch/x86/mm/highmem_32.c:52 kmap_atomic_prot()
> [ 35.308126] WARNING: at arch/x86/mm/highmem_32.c:52 kmap_atomic_prot()
> WARNING: at arch/x86/mm/highmem_32.c:52 kmap_atomic_prot()
> [ 35.484155] WARNING: at arch/x86/mm/highmem_32.c:52 kmap_atomic_prot()
> WARNING: at arch/x86/mm/highmem_32.c:52 kmap_atomic_prot()
> WARNING: at arch/x86/mm/highmem_32.c:52 kmap_atomic_prot()
> WARNING: at arch/x86/mm/highmem_32.c:52 kmap_atomic_prot()
> WARNING: at arch/x86/mm/highmem_32.c:52 kmap_atomic_prot()
> WARNING: at arch/x86/mm/highmem_32.c:52 kmap_atomic_prot()
>
> and the patch does not seem to be upstream yet.
>
err, umm, OK, I'll go hunt it down and take a closer look at it.
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