linux-kernel - Re: kernel BUG at drivers/pci/intel-iommu.c:1278

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Date:	Fri, 16 Oct 2009 11:58:36 -0700
From:	Roland Dreier <rdreier@...co.com>
To:	landman@...lableinformatics.com
Cc:	linux-kernel@...r.kernel.org, linux-rdma@...r.kernel.org,
	Anand Babu Periasamy <ab@...ster.com>
Subject: Re: kernel BUG at drivers/pci/intel-iommu.c:1278

 > Anything I should look for?  I know 2.6.28 is not being developed any
 > further.  Should I start looking at 2.6.31 to help with this?

Definitely looking at 2.6.31 or even 2.6.32-rc kernels to see if this
still happens would be a good idea.  I've not done much IB work with
VT-d enabled, but the fact that the BUG() is in drivers/pci seems to
indicate that the problem is fairly likely to be some internal
corruption in the intel_iommu code, caused by a bug there, rather than
anything IB related.

 - R.
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