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: <CALfB72CLZMrS+gTR3=0QcGry4vA3wKmgbhjp9Lc06UZtVcxzZg@mail.gmail.com>
Date:	Tue, 20 Dec 2011 12:47:09 +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

Any news on this one?

Regards

Albert

On Thu, Dec 8, 2011 at 8:31 PM, Albert Strasheim <fullung@...il.com> wrote:
> 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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