linux-kernel - Re: kernel BUG at mm/truncate.c:475!

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Message-ID: <4D03D5F8.4010206@newton.leun.net>
Date:	Sat, 11 Dec 2010 20:50:16 +0100
From:	Michael Leun <vb-contact@...ton.leun.net>
To:	Miklos Szeredi <miklos@...redi.hu>
CC:	Michael Leun <lkml20101129@...ton.leun.net>, hughd@...gle.com,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: Re: kernel BUG at mm/truncate.c:475!

Miklos Szeredi schrieb:
> On Mon, 6 Dec 2010, Michael Leun wrote:
>> At the moment I'm trying to create an easy to reproduce scenario.
>>

To be honest that somewhat sliddered down on my todo-list due to not
much time and kernel_cache worked around that...

> I've managed to reproduce the BUG.

...so I'm very happy you found a way to reproduce yourself.

[...]

> Attached patch attempts to do this without adding more fields to
> struct address_space.  It fixes the bug in my testing.

I'll add this patch on my work machine monday morning (happened for me
only on that quadcore, I realize now...) and turn off kernel_cache
again, of course, and let you know what happens.

Thanks.
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