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Re: XFS / writeback invoking soft lockup.

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: XFS / writeback invoking soft lockup.
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Fri, 13 Dec 2013 03:16:39 -0800
Cc: Dave Jones <davej@xxxxxxxxxx>, Linux Kernel <linux-kernel@xxxxxxxxxxxxxxx>, xfs@xxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <20131213104853.GS10988@dastard>
References: <20131213071407.GA6527@xxxxxxxxxx> <20131213104853.GS10988@dastard>
User-agent: Mutt/1.5.21 (2010-09-15)
On Fri, Dec 13, 2013 at 09:48:53PM +1100, Dave Chinner wrote:
> All I can say is that there doesn't look to be any obvious signs
> that this is a XFS or writeback problem fom the stack trace, and
> without more information or a reproducable test case I'm not going
> to be able to understand the cause.
> Is the problem reproducable, or is it just a one-off?

If it's reproducable it would be good to enable the xfs_writepage
tracepoint and get a trace-cmd log of it.

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