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Date: Tue, 2 Jan 2007 11:20:54 +0000 From: Christoph Hellwig <hch@...radead.org> To: Ingo Molnar <mingo@...e.hu> Cc: Linus Torvalds <torvalds@...l.org>, Segher Boessenkool <segher@...nel.crashing.org>, David Miller <davem@...emloft.net>, nickpiggin@...oo.com.au, kenneth.w.chen@...el.com, guichaz@...oo.fr, hugh@...itas.com, linux-kernel@...r.kernel.org, ranma@...edrich.de, gordonfarquharson@...il.com, akpm@...l.org, a.p.zijlstra@...llo.nl, tbm@...ius.com, arjan@...radead.org, andrei.popa@...eo.ro Subject: Re: [patch] fix data corruption bug in __block_write_full_page() On Fri, Dec 29, 2006 at 01:19:46PM +0100, Ingo Molnar wrote: > i've extended the tracer in -rt to trace all relevant pagetable, > pagecache, buffer-cache and IO events and coupled the tracer to your > test.c code. The corruption happens here: > > test-2126 0.... 3756170us+: trace_page (cf20ebd8 b6a2c000 0) > pdflush-2006 0.... 6432909us+: trace_page (cf20ebd8 b6a2c000 4200420) > test-2126 0.... 8135596us+: trace_page (cf20ebd8 b6a2c000 4200420) > test-2126 0D... 9012933us+: do_page_fault (8048900 4 b6a2c000) > test-2126 0.... 9023278us+: trace_page (cf262f24 b6a2c000 0) > test-2126 0.... 9023305us > sys_prctl (000000d8 b6a2c000 000000ac) This tracer definitly looks interesting. Could you send a splitout patch with it to lkml for review? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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