linux-kernel - Re: kernel BUG at drivers/iommu/intel-iommu.c:1767 on F16 3.1.1-2.fc16.x86

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Message-ID: <CALfB72CAwzRe3u2+yQ15+coY9kNgFTZ_Be-b-+aMe6QvbZy-HA@mail.gmail.com>
Date:	Thu, 8 Dec 2011 20:31:55 +0200
From:	Albert Strasheim <fullung@...il.com>
To:	Roland Dreier <roland@...estorage.com>
Cc:	linux-rdma@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	David Woodhouse <dwmw2@...radead.org>
Subject: Re: kernel BUG at drivers/iommu/intel-iommu.c:1767 on F16 3.1.1-2.fc16.x86_64

Hello

On Thu, Dec 8, 2011 at 8:29 PM, Roland Dreier <roland@...estorage.com> wrote:
> On Thu, Dec 8, 2011 at 9:56 AM, Albert Strasheim <fullung@...il.com> wrote:
>> I think the BIOS has VT-d enabled. dmesg says:
>> PCI-DMA: Intel(R) Virtualization Technology for Directed I/O
> Yes, you're crashing in the VT-d code.
> If you don't care about that, you can boot with the kernel parameter
> "intel_iommu=off"
> as a workaround, but it would be nice to get to the bottom of this.

I'm happy to test any patches or provide more information.

Regards

Albert
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