From: Ted Ts'o <tytso@mit.edu>
Subject: Re: [next-20101038] Call trace in ext4
Date: Thu, 28 Oct 2010 14:01:18 -0400
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 <20101028175221.GA1578@arch.trippelsdorf.de>
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Cc: sedat.dilek@gmail.com, LKML <linux-kernel@vger.kernel.org>,
	linux-ext4@vger.kernel.org, sfr@canb.auug.org.au,
	Arnd Bergmann <arnd@arndb.de>
To: Markus Trippelsdorf <markus@trippelsdorf.de>
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On Thu, Oct 28, 2010 at 07:52:21PM +0200, Markus Trippelsdorf wrote:
> 
> The same BUG (inode.c:2721) happend here today running latest vanilla
> git. There is nothing in my logs unfortunately, but I shot a photo of
> the trace (see attachment).

I see, it's the page_buffers() call which is triggering.  Looking into
it...

							- Ted