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 10:30:39 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.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]


* 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.

	Ingo
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