From: Keith Packard <keithp@keithp.com>
To: Udo Steinberg <udo@hypervisor.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
dri-devel@lists.freedesktop.org
Subject: Re: GPU hung with Linux-3.2-rc6
Date: Fri, 23 Dec 2011 13:32:17 -0800 [thread overview]
Message-ID: <86k45nnfdq.fsf@sumi.keithp.com> (raw)
In-Reply-To: <20111222014520.7ace1ab2@x220.fritz.box>
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It would also be nice to know if disabling VT-d in the BIOS resolves
this issue, or if building the kernel with IOMMU support and then
forcibly disabling it with 'intel_iommu=off' fixes the problem. Given
that you can easily reproduce this, it would be good to know how your
machine differs from dozens of others which work fine with semaphores
turned on...
Oh, and the output of 'lspci -nn -vv' would be nice to see in case
you've got older (or newer) chips...
--
keith.packard@intel.com
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prev parent reply other threads:[~2011-12-23 21:31 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-21 18:54 GPU hung with Linux-3.2-rc6 Udo Steinberg
2011-12-21 20:00 ` Keith Packard
2011-12-21 21:26 ` Udo Steinberg
2011-12-21 22:55 ` Keith Packard
2011-12-22 0:45 ` Udo Steinberg
2011-12-22 8:22 ` Daniel Vetter
2012-01-02 7:09 ` Udo Steinberg
2012-01-02 21:30 ` Daniel Vetter
2011-12-22 17:00 ` Keith Packard
[not found] ` <CAC7Lmnu7=7Y0K6zfmFsv_yPk_XAujNw6+D_B5vzpqhcQb27yhg@mail.gmail.com>
2011-12-23 21:10 ` Keith Packard
2011-12-23 21:32 ` Keith Packard [this message]
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