linux-kernel - Re: weird umem vs nfsd regression

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Message-ID: <Pine.LNX.4.64.1006172130190.10542@cobra.newdream.net>
Date:	Thu, 17 Jun 2010 21:44:27 -0700 (PDT)
From:	Sage Weil <sage@...dream.net>
To:	Neil Brown <neilb@...e.de>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Alexey Dobriyan <adobriyan@...il.com>,
	Tejun Heo <tj@...nel.org>, linux-kernel@...r.kernel.org,
	hch@....de, bfields@...i.umich.edu
Subject: Re: weird umem vs nfsd regression

On Thu, 17 Jun 2010, Sage Weil wrote:
> I guess at this point I'll walk through those options one by one to see 
> which one changes the behavior.

Hmm, CONFIG_IOMMU_DEBUG=y makes the hang go away.

sage
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