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From: Ingo Molnar <mingo@elte.hu>
To: Christoph Lameter <clameter@sgi.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Pekka Enberg <penberg@cs.helsinki.fi>,
	linux-kernel@vger.kernel.org, Mel Gorman <mel@csn.ul.ie>,
	Nick Piggin <npiggin@suse.de>,
	Andrew Morton <akpm@linux-foundation.org>,
	"Rafael J. Wysocki" <rjw@sisk.pl>,
	Yinghai.Lu@sun.com, apw@shadowen.org,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
	Joe Perches <joe@perches.com>
Subject: Re: [patch] mm: sparsemem memory_present() memory corruption fix
Date: Wed, 16 Apr 2008 02:52:03 +0200	[thread overview]
Message-ID: <20080416005203.GB26996@elte.hu> (raw)
In-Reply-To: <Pine.LNX.4.64.0804151742010.6876@schroedinger.engr.sgi.com>


* Christoph Lameter <clameter@sgi.com> wrote:

> I wonder why this did not show up earlier in testing? Running a kernel 
> that cannot access all of memory is unusual I guess.

i guess people saw the "you are not running a PAE kernel" warning and 
went to a PAE kernel which didnt have this issue.

OTOH, quite a few testers consciously use non-PAE kernels on 4GB 
systems, so i'd not be surprised if this solved a few mystery 
regressions we have.

	Ingo

  reply	other threads:[~2008-04-16  0:52 UTC|newest]

Thread overview: 95+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-04-11  7:41 [bug] mm/slab.c boot crash in -git, "kernel BUG at mm/slab.c:2103!" Ingo Molnar
2008-04-11  8:21 ` Pekka Enberg
2008-04-11  8:50   ` Pekka Enberg
2008-04-11  8:54     ` Ingo Molnar
2008-04-11  9:05       ` Pekka Enberg
2008-04-11  9:08         ` Pekka Enberg
2008-04-11  9:11           ` Pekka Enberg
2008-04-11  9:24             ` Ingo Molnar
2008-04-11 10:34               ` Nick Piggin
2008-04-11 19:28               ` Christoph Lameter
2008-04-12 10:38                 ` Christoph Lameter
2008-04-12 17:22                   ` Yinghai Lu
2008-04-15  5:43                 ` Ingo Molnar
2008-04-15  9:36               ` Mel Gorman
2008-04-15 10:03                 ` Ingo Molnar
2008-04-15  6:25             ` [bug] SLUB + mm/slab.c boot crash in -rc9 Ingo Molnar
2008-04-15  6:41               ` Pekka Enberg
2008-04-15  7:08                 ` Ingo Molnar
2008-04-15  8:31                   ` Yinghai Lu
2008-04-15  8:46                     ` Ingo Molnar
2008-04-15  9:11                   ` Ingo Molnar
2008-04-15 16:02               ` Linus Torvalds
2008-04-15 16:15                 ` Ingo Molnar
2008-04-15 17:23                   ` Linus Torvalds
2008-04-15 19:35                     ` Ingo Molnar
2008-04-15 19:41                       ` Ingo Molnar
2008-04-15 19:39                     ` Christoph Lameter
2008-04-15 19:54                       ` Ingo Molnar
2008-04-15 20:03                         ` Christoph Lameter
2008-04-15 20:17                           ` Ingo Molnar
2008-04-15 20:28                             ` Ingo Molnar
2008-04-15 20:34                               ` Ingo Molnar
2008-04-15 20:42                                 ` Ingo Molnar
2008-04-15 20:50                                   ` Christoph Lameter
2008-04-15 20:58                                     ` Ingo Molnar
2008-04-15 21:08                                       ` Christoph Lameter
2008-04-15 21:16                                         ` Mike Travis
2008-04-15 21:19                                         ` Ingo Molnar
2008-04-15 21:21                                           ` Christoph Lameter
2008-04-15 21:23                                             ` Ingo Molnar
2008-04-15 21:24                                               ` Christoph Lameter
2008-04-15 21:28                                                 ` Ingo Molnar
2008-04-15 21:33                                                   ` Christoph Lameter
2008-04-15 21:43                                                   ` Mike Travis
2008-04-15 22:07                                                   ` Ingo Molnar
2008-04-15 21:27                                           ` Mike Travis
2008-04-15 20:34                             ` Pekka Enberg
2008-04-15 20:40                               ` Ingo Molnar
2008-04-15 21:06                                 ` Linus Torvalds
2008-04-15 21:13                                   ` Ingo Molnar
2008-04-15 21:24                                     ` Ingo Molnar
2008-04-15 21:42                                       ` Christoph Lameter
2008-04-15 21:55                                         ` Ingo Molnar
2008-04-15 22:06                                           ` Christoph Lameter
2008-04-15 22:13                                             ` Ingo Molnar
2008-04-15 22:27                                               ` Christoph Lameter
2008-04-15 22:32                                                 ` Ingo Molnar
2008-04-15 23:22                                                 ` Christoph Lameter
2008-04-15 23:27                                                   ` Ingo Molnar
2008-04-15 23:32                                                     ` Christoph Lameter
2008-04-16  0:04                                                     ` Christoph Lameter
2008-04-15 23:18                                             ` Yinghai Lu
2008-04-16  0:03                                   ` [patch] mm: sparsemem memory_present() memory corruption fix Ingo Molnar
2008-04-16  0:10                                     ` Christoph Lameter
2008-04-16  0:18                                     ` Ingo Molnar
2008-04-16  0:32                                       ` Yinghai Lu
2008-04-16  0:44                                         ` Ingo Molnar
2008-04-16  0:46                                           ` Christoph Lameter
2008-04-16  0:52                                             ` Ingo Molnar
2008-04-16  1:17                                               ` Ingo Molnar
2008-04-16  1:30                                                 ` Yinghai Lu
2008-04-16  2:00                                                   ` Yinghai Lu
2008-04-16  2:20                                                     ` KAMEZAWA Hiroyuki
2008-04-16  0:56                                           ` Yinghai Lu
2008-04-16  1:02                                             ` Ingo Molnar
2008-04-16  1:17                                               ` Yinghai Lu
2008-04-16  0:19                                     ` Christoph Lameter
2008-04-16  0:33                                       ` Yinghai Lu
2008-04-16  0:36                                       ` Ingo Molnar
2008-04-16  0:34                                     ` Ingo Molnar
2008-04-16  0:40                                       ` Ingo Molnar
2008-04-16  0:45                                         ` Christoph Lameter
2008-04-16  0:52                                           ` Ingo Molnar [this message]
2008-04-16  1:14                                         ` Ingo Molnar
2008-04-16  2:45                                       ` Linus Torvalds
2008-04-16  1:48                                     ` KAMEZAWA Hiroyuki
2008-04-16 14:05                                     ` Mel Gorman
2008-04-16 15:03                                     ` Ingo Molnar
2008-04-15 20:54                             ` [bug] SLUB + mm/slab.c boot crash in -rc9 Christoph Lameter
2008-04-15 20:58                               ` Ingo Molnar
2008-04-15 21:08                                 ` Ingo Molnar
2008-04-15 20:23                   ` Ingo Molnar
2008-04-11 19:26           ` [bug] mm/slab.c boot crash in -git, "kernel BUG at mm/slab.c:2103!" Christoph Lameter
2008-04-11 19:25         ` Christoph Lameter
2008-04-15  5:49           ` Ingo Molnar

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