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Re: [xfs-masters] xfs deadlock in stable kernel 3.0.4

To: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Subject: Re: [xfs-masters] xfs deadlock in stable kernel 3.0.4
From: Stefan Priebe <s.priebe@xxxxxxxxxxxx>
Date: Wed, 21 Sep 2011 15:42:22 +0200
Cc: Dave Chinner <david@xxxxxxxxxxxxx>, "xfs@xxxxxxxxxxx" <xfs@xxxxxxxxxxx>
In-reply-to: <20110921122649.GA16602@xxxxxxxxxxxxx>
References: <20110918230245.GF15688@dastard> <4E78665E.8030409@xxxxxxxxxxxx> <20110920160226.GA25542@xxxxxxxxxxxxx> <4E78CBF4.1030505@xxxxxxxxxxxx> <20110920172455.GA30757@xxxxxxxxxxxxx> <4E78CEFD.9030603@xxxxxxxxxxxx> <20110920223047.GA13758@xxxxxxxxxxxxx> <20110921021133.GM15688@dastard> <4E7994D3.5020103@xxxxxxxxxxxx> <20110921114237.GP15688@dastard> <20110921122649.GA16602@xxxxxxxxxxxxx>
Am 21.09.2011 um 14:26 schrieb Christoph Hellwig <hch@xxxxxxxxxxxxx>:
> What is also strange is that we allocate a xfs_ail_wq, but don't
> actually use it, although it would have the same idea.  Stefan,
> can you try the following patch?  This moves the ail work to it's
> explicit queue, and makes sure we never have the same work item
> (= same fs to be pushed) concurrently.
I will have the chance to test in a few hours again. Perhaps  can test too?


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