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From: Christoph Hellwig <hch@infradead.org>
To: Alessandro Bono <alessandro.bono@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>,
	linux-xfs <linux-xfs@oss.sgi.com>,
	linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: XFS kernel BUG at fs/buffer.c:470! with 2.6.28.4
Date: Mon, 9 Feb 2009 02:53:08 -0500	[thread overview]
Message-ID: <20090209075308.GA7360@infradead.org> (raw)
In-Reply-To: <1234133120.12370.7.camel@champagne.cantina>

On Sun, Feb 08, 2009 at 11:45:20PM +0100, Alessandro Bono wrote:
> sure, attached

That would be a missing PagePrivate bit in page_buffers() called from
end_buffer_async_write.  PG_private can only be cleared via drop_buffers
which requires the page not having PG_writeback set which must be
set until end_buffer_async_write is done.  Very strange, and all this
is generic code without xfs involvement.  Did this happen once
or can you reproduce it?

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WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@infradead.org>
To: Alessandro Bono <alessandro.bono@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>,
	linux-xfs <linux-xfs@oss.sgi.com>,
	linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: XFS kernel BUG at fs/buffer.c:470! with 2.6.28.4
Date: Mon, 9 Feb 2009 02:53:08 -0500	[thread overview]
Message-ID: <20090209075308.GA7360@infradead.org> (raw)
In-Reply-To: <1234133120.12370.7.camel@champagne.cantina>

On Sun, Feb 08, 2009 at 11:45:20PM +0100, Alessandro Bono wrote:
> sure, attached

That would be a missing PagePrivate bit in page_buffers() called from
end_buffer_async_write.  PG_private can only be cleared via drop_buffers
which requires the page not having PG_writeback set which must be
set until end_buffer_async_write is done.  Very strange, and all this
is generic code without xfs involvement.  Did this happen once
or can you reproduce it?


  parent reply	other threads:[~2009-02-09  7:53 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-07 13:06 XFS kernel BUG at fs/buffer.c:470! with 2.6.28.4 Alessandro Bono
2009-02-07 13:06 ` Alessandro Bono
2009-02-08 22:16 ` Dave Chinner
2009-02-08 22:16   ` Dave Chinner
2009-02-08 23:24   ` Alessandro Bono
2009-02-08 23:24     ` Alessandro Bono
2009-02-09  8:40     ` Michael Monnerie
2009-02-09 10:33     ` Peter Zijlstra
2009-02-09 10:33       ` Peter Zijlstra
2009-02-08 22:28 ` Christoph Hellwig
2009-02-08 22:28   ` Christoph Hellwig
2009-02-08 22:39   ` Alessandro Bono
2009-02-08 22:39     ` Alessandro Bono
2009-02-08 22:42     ` Christoph Hellwig
2009-02-08 22:42       ` Christoph Hellwig
2009-02-08 22:45       ` Alessandro Bono
2009-02-08 22:45         ` Alessandro Bono
2009-02-09  2:52         ` Eric Sandeen
2009-02-09  2:52           ` Eric Sandeen
2009-02-09  2:53           ` Eric Sandeen
2009-02-09  2:53             ` Eric Sandeen
2009-02-09  7:53         ` Christoph Hellwig [this message]
2009-02-09  7:53           ` Christoph Hellwig
2009-02-09  9:02           ` Alessandro Bono
2009-02-09  9:02             ` Alessandro Bono
2009-02-10 10:43           ` Dave Chinner
2009-02-10 10:43             ` Dave Chinner
2009-02-10 10:53             ` Alessandro Bono
2009-02-10 10:53               ` Alessandro Bono
2009-02-11 21:47             ` Alessandro Bono
2009-02-11 21:47               ` Alessandro Bono
2009-02-12  9:47             ` Alessandro Bono
2009-02-12  9:47               ` Alessandro Bono
2009-02-13  9:19               ` Michael Monnerie
2009-02-26 16:58               ` Jan Kara
2009-02-26 16:58                 ` Jan Kara
2009-02-26 16:59                 ` Jan Kara
2009-02-26 16:59                   ` Jan Kara
2009-02-27  9:22                 ` Alessandro Bono
2009-02-27  9:22                   ` Alessandro Bono
2009-02-27 19:44                 ` Alessandro Bono
2009-02-27 19:44                   ` Alessandro Bono
2009-03-02 13:36                   ` Jan Kara
2009-03-02 13:36                     ` Jan Kara
2009-03-02 15:04                     ` Alessandro Bono
2009-03-02 15:04                       ` Alessandro Bono
2009-03-11 17:04                     ` Alessandro Bono
2009-03-11 17:04                       ` Alessandro Bono

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