From: Andrea Gelmini <gelma@gelma.net>
To: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: VM: Fix nasty and subtle race in shared mmap'ed page writeback
Date: Sun, 31 Dec 2006 14:50:31 +0100 [thread overview]
Message-ID: <20061231135031.GC23445@gelma.net> (raw)
In-Reply-To: <459734CE.1090001@yahoo.com.au>
On Sun, Dec 31, 2006 at 02:55:58PM +1100, Nick Piggin wrote:
> This bug was only introduced in 2.6.19, due to a change that caused pte
no, Linus said that with 2.6.19 it's easier to trigger this bug...
> So if your corruption is years old, then it must be something else.
> Maybe it is hidden by a timing change, or BDB isn't using msync properly.
I can give you a complete image where just changing kernel (everything
is same, of course) corruptions goes away.
we spent a lot, I mean a *lot*, of time looking for our code mistake,
and so on.
I don't want to seem rude, but I am sure that Berkeley DB corruption we
have seen (not just Klibido, but I also think about postgrey, and so on)
depends on this bug.
I repeat, if you have time/interest I can give you a complete machine
to see the problem.
thanks a lot for your time,
gelma
next prev parent reply other threads:[~2006-12-31 13:50 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200612291859.kBTIx2kq031961@hera.kernel.org>
2006-12-29 22:43 ` VM: Fix nasty and subtle race in shared mmap'ed page writeback Andrea Gelmini
2006-12-31 3:55 ` Nick Piggin
2006-12-31 13:50 ` Andrea Gelmini [this message]
2007-01-04 3:57 ` Nick Piggin
2007-01-04 4:44 ` Linus Torvalds
2007-01-04 5:07 ` Nick Piggin
2007-01-04 13:17 ` Andrea Gelmini
2007-01-04 5:41 ` Andrew Morton
2007-01-04 6:03 ` Nick Piggin
2007-01-04 6:12 ` Andrew Morton
2007-01-04 6:56 ` David Miller
2007-01-04 7:06 ` Andrew Morton
2007-01-04 7:16 ` Nick Piggin
2007-01-04 13:25 ` Hugh Dickins
2007-01-08 7:46 ` dean gaudet
2007-01-04 13:08 ` Andrea Gelmini
2007-01-04 13:16 ` Andrea Gelmini
2007-01-05 5:36 ` Nick Piggin
2007-01-10 13:54 ` Andrea Gelmini
[not found] ` <1168507298.26496.18.camel@twins>
[not found] ` <20070112003955.GH4553@gelma.net>
[not found] ` <1169457039.2639.17.camel@taijtu>
2007-01-29 14:08 ` Andrea Gelmini
2007-01-29 14:11 ` Peter Zijlstra
2007-01-29 15:12 ` Andrea Arcangeli
2007-01-05 19:12 ` Christoph Lameter
2007-01-05 19:33 ` Linus Torvalds
2007-01-05 20:02 ` Christoph Lameter
2007-01-05 21:34 ` Linus Torvalds
2007-01-04 13:19 ` Andrea Gelmini
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