linux-kernel - Re: i915-related and general system freezes with specific kernel config // IOMMU

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Date:	Mon, 21 Jan 2013 19:11:44 +0100
From:	Mihai Moldovan <ionic@...ic.de>
To:	Daniel Vetter <daniel.vetter@...ll.ch>
CC:	LKML <linux-kernel@...r.kernel.org>,
	David Woodhouse <dwmw2@...radead.org>,
	intel-gfx <intel-gfx@...ts.freedesktop.org>,
	dri-devel <dri-devel@...ts.freedesktop.org>
Subject: Re: i915-related and general system freezes with specific kernel
 config // IOMMU

* On 20.01.2013 11:49 PM, Daniel Vetter wrote:
> Thanks for testing, I've just submitted the patch for review. It
> should included in a -fixes tree soon and the get backported to
> stable kernels.

Thanks. :)

> Please let me know when this works solidly for you, so that I can
> put it into a real patch and also submit it for inclusion.

No freeze for >24h, I guess we can conclude the quirk does indeed
fix the random freeze issue as well. :)
I'm all for inclusion.

I'm also currently testing a kernel without the Intel IOMMU feature. This seems
to work, too, but also disables Intel TXT and VT-d...
At least not seeing USB and PCI(e) issues. I'll leave the box running for some
more and will afterwards disable IOMMU as a whole to see if I hit USB and PCI(e)
issues again with that combination.

Best regards,

Mihai

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