Re: [bug] SLUB + mm/slab.c boot crash in -rc9

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To: Ingo Molnar <mingo@...>

Cc: Linus Torvalds <torvalds@...>, Pekka Enberg <penberg@...>, <linux-kernel@...>, Mel Gorman <mel@...>, Nick Piggin <npiggin@...>, Andrew Morton <akpm@...>, Rafael J. Wysocki <rjw@...>, <Yinghai.Lu@...>, <apw@...>, <travis@...>, KAMEZAWA Hiroyuki <kamezawa.hiroyu@...>

Subject: Re: [bug] SLUB + mm/slab.c boot crash in -rc9

Date: Tuesday, April 15, 2008 - 5:08 pm

On Tue, 15 Apr 2008, Ingo Molnar wrote:

quoted text> and the bug pattern seems to be memory corruption - not memory 
> exhaustion.

SLUB does not do a memory allocation where it fails here but simply 
accesses per cpu information that is expected to be already zeroed.

quoted text> i.e. we allocated RAM but it got corrupted after allocation.

In some situations we are screwing up the per cpu data handling on 
32 bit x86? Adding Mike. This looks like the per cpu area overlaps with 
something else?



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Messages in current thread:

[bug] mm/slab.c boot crash in -git, "kernel BUG at mm/slab.c..., Ingo Molnar, (Fri Apr 11, 3:41 am)

Re: [bug] mm/slab.c boot crash in -git, "kernel BUG at mm/sl..., Pekka Enberg, (Fri Apr 11, 4:21 am)

Re: [bug] mm/slab.c boot crash in -git, "kernel BUG at mm/sl..., Pekka Enberg, (Fri Apr 11, 4:50 am)

Re: [bug] mm/slab.c boot crash in -git, "kernel BUG at mm/sl..., Ingo Molnar, (Fri Apr 11, 4:54 am)

Re: [bug] mm/slab.c boot crash in -git, "kernel BUG at mm/sl..., Pekka Enberg, (Fri Apr 11, 5:05 am)

Re: [bug] mm/slab.c boot crash in -git, "kernel BUG at mm/sl..., Christoph Lameter, (Fri Apr 11, 3:25 pm)

Re: [bug] mm/slab.c boot crash in -git, "kernel BUG at mm/sl..., Ingo Molnar, (Tue Apr 15, 1:49 am)

Re: [bug] mm/slab.c boot crash in -git, "kernel BUG at mm/sl..., Pekka Enberg, (Fri Apr 11, 5:08 am)

Re: [bug] mm/slab.c boot crash in -git, "kernel BUG at mm/sl..., Christoph Lameter, (Fri Apr 11, 3:26 pm)

Re: [bug] mm/slab.c boot crash in -git, "kernel BUG at mm/sl..., Pekka Enberg, (Fri Apr 11, 5:11 am)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 2:25 am)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Linus Torvalds, (Tue Apr 15, 12:02 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 12:15 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 4:23 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Linus Torvalds, (Tue Apr 15, 1:23 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Christoph Lameter, (Tue Apr 15, 3:39 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 3:54 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Christoph Lameter, (Tue Apr 15, 4:03 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 4:17 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Christoph Lameter, (Tue Apr 15, 4:54 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 4:58 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 5:08 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Pekka Enberg, (Tue Apr 15, 4:34 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 4:40 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Linus Torvalds, (Tue Apr 15, 5:06 pm)

[patch] mm: sparsemem memory_present() memory corruption fix, Ingo Molnar, (Tue Apr 15, 8:03 pm)

Re: [patch] mm: sparsemem memory_present() memory corruption..., Ingo Molnar, (Wed Apr 16, 11:03 am)

Re: [patch] mm: sparsemem memory_present() memory corruption..., Mel Gorman, (Wed Apr 16, 10:05 am)

Re: [patch] mm: sparsemem memory_present() memory corruption..., KAMEZAWA Hiroyuki, (Tue Apr 15, 9:48 pm)

Re: [patch] mm: sparsemem memory_present() memory corruption..., Ingo Molnar, (Tue Apr 15, 8:34 pm)

Re: [patch] mm: sparsemem memory_present() memory corruption..., Linus Torvalds, (Tue Apr 15, 10:45 pm)

Re: [patch] mm: sparsemem memory_present() memory corruption..., Ingo Molnar, (Tue Apr 15, 8:40 pm)

Re: [patch] mm: sparsemem memory_present() memory corruption..., Ingo Molnar, (Tue Apr 15, 9:14 pm)

Re: [patch] mm: sparsemem memory_present() memory corruption..., Christoph Lameter, (Tue Apr 15, 8:45 pm)

Re: [patch] mm: sparsemem memory_present() memory corruption..., Ingo Molnar, (Tue Apr 15, 8:52 pm)

Re: [patch] mm: sparsemem memory_present() memory corruption..., Christoph Lameter, (Tue Apr 15, 8:19 pm)

Re: [patch] mm: sparsemem memory_present() memory corruption..., Ingo Molnar, (Tue Apr 15, 8:36 pm)

Re: [patch] mm: sparsemem memory_present() memory corruption..., Yinghai Lu, (Tue Apr 15, 8:33 pm)

Re: [patch] mm: sparsemem memory_present() memory corruption..., Ingo Molnar, (Tue Apr 15, 8:18 pm)

Re: [patch] mm: sparsemem memory_present() memory corruption..., Yinghai Lu, (Tue Apr 15, 8:32 pm)

Re: [patch] mm: sparsemem memory_present() memory corruption..., Ingo Molnar, (Tue Apr 15, 8:44 pm)

Re: [patch] mm: sparsemem memory_present() memory corruption..., Yinghai Lu, (Tue Apr 15, 8:56 pm)

Re: [patch] mm: sparsemem memory_present() memory corruption..., Ingo Molnar, (Tue Apr 15, 9:02 pm)

Re: [patch] mm: sparsemem memory_present() memory corruption..., Yinghai Lu, (Tue Apr 15, 9:17 pm)

Re: [patch] mm: sparsemem memory_present() memory corruption..., Christoph Lameter, (Tue Apr 15, 8:46 pm)

Re: [patch] mm: sparsemem memory_present() memory corruption..., Ingo Molnar, (Tue Apr 15, 8:52 pm)

Re: [patch] mm: sparsemem memory_present() memory corruption..., Ingo Molnar, (Tue Apr 15, 9:17 pm)

Re: [patch] mm: sparsemem memory_present() memory corruption..., Yinghai Lu, (Tue Apr 15, 9:30 pm)

Re: [patch] mm: sparsemem memory_present() memory corruption..., Yinghai Lu, (Tue Apr 15, 10:00 pm)

Re: [patch] mm: sparsemem memory_present() memory corruption..., KAMEZAWA Hiroyuki, (Tue Apr 15, 10:20 pm)

Re: [patch] mm: sparsemem memory_present() memory corruption..., Christoph Lameter, (Tue Apr 15, 8:10 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 5:13 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 5:24 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Christoph Lameter, (Tue Apr 15, 5:42 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 5:55 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Christoph Lameter, (Tue Apr 15, 6:06 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Yinghai Lu, (Tue Apr 15, 7:18 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 6:13 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Christoph Lameter, (Tue Apr 15, 6:27 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Christoph Lameter, (Tue Apr 15, 7:22 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 7:27 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Christoph Lameter, (Tue Apr 15, 8:04 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Christoph Lameter, (Tue Apr 15, 7:32 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 6:32 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 4:28 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 4:34 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 4:42 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Christoph Lameter, (Tue Apr 15, 4:50 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 4:58 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Christoph Lameter, (Tue Apr 15, 5:08 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 5:19 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Mike Travis, (Tue Apr 15, 5:27 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Christoph Lameter, (Tue Apr 15, 5:21 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 5:23 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Christoph Lameter, (Tue Apr 15, 5:24 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 5:28 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 6:07 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Mike Travis, (Tue Apr 15, 5:43 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Christoph Lameter, (Tue Apr 15, 5:33 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Mike Travis, (Tue Apr 15, 5:16 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 3:35 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 3:41 pm)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Pekka Enberg, (Tue Apr 15, 2:41 am)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 3:08 am)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 5:11 am)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Yinghai Lu, (Tue Apr 15, 4:31 am)

Re: [bug] SLUB + mm/slab.c boot crash in -rc9, Ingo Molnar, (Tue Apr 15, 4:46 am)

Re: [bug] mm/slab.c boot crash in -git, "kernel BUG at mm/sl..., Ingo Molnar, (Fri Apr 11, 5:24 am)

Re: [bug] mm/slab.c boot crash in -git, "kernel BUG at mm/sl..., Mel Gorman, (Tue Apr 15, 5:36 am)

Re: [bug] mm/slab.c boot crash in -git, "kernel BUG at mm/sl..., Ingo Molnar, (Tue Apr 15, 6:03 am)

Re: [bug] mm/slab.c boot crash in -git, "kernel BUG at mm/sl..., Christoph Lameter, (Fri Apr 11, 3:28 pm)

Re: [bug] mm/slab.c boot crash in -git, "kernel BUG at mm/sl..., Ingo Molnar, (Tue Apr 15, 1:43 am)

Re: [bug] mm/slab.c boot crash in -git, "kernel BUG at mm/sl..., Christoph Lameter, (Sat Apr 12, 6:38 am)

Re: [bug] mm/slab.c boot crash in -git, "kernel BUG at mm/sl..., Yinghai Lu, (Sat Apr 12, 1:22 pm)

Re: [bug] mm/slab.c boot crash in -git, "kernel BUG at mm/sl..., Nick Piggin, (Fri Apr 11, 6:34 am)

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