linux-kernel - Re: tipc_init(), WARNING: at arch/x86/mm/highmem_32.c:52, [2.6.24-rc4-git5: Reported regressions from 2.6.23]

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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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