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Date: Fri, 2 Mar 2012 17:21:59 +0100
From: Bastian Blank <waldi@debian.org>
To: Dan Williams <dan.j.williams@intel.com>
Cc: Jonathan Nieder <jrnieder@gmail.com>, xen-devel@lists.xensource.com,
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Subject: Re: [Pkg-xen-devel] ioatdma: Boot process hangs then reboots when
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On Thu, Mar 01, 2012 at 10:42:44PM -0800, Dan Williams wrote:
> WARN_ON may work, but then kernel may be subject random hangs from missed
> i/o completions.

Why is that? Currently it just dies if was triggered via interrupt and
for some reason no active descriptor was found.

>                   Is xen32 using vt-d?

Yes. Xen can use VT-D.

>                                         Just wondering if writes from ioat
> device are getting misdirected.

How do VT-D and ioat interact?

Bastian

-- 
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