linux-kernel - Re: [regression] 2.6.37-post-rc7 with radeon kms: reproducably locks up hard when using desktop cube of kwin

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Date:	Tue, 8 Mar 2011 19:40:58 +1000
From:	Dave Airlie <airlied@...il.com>
To:	Martin Steigerwald <Martin@...htvoll.de>
Cc:	linux-kernel@...r.kernel.org, Alex Deucher <alexdeucher@...il.com>,
	DRI <dri-devel@...ts.freedesktop.org>
Subject: Re: [regression] 2.6.37-post-rc7 with radeon kms: reproducably locks
 up hard when using desktop cube of kwin

On Tue, Mar 8, 2011 at 7:35 PM, Martin Steigerwald <Martin@...htvoll.de> wrote:
> Its rainy again in Sevilla...
>
> Am Sunday 06 March 2011 schrieb Dave Airlie:
>> > I verified this. Lockup happens with 2.6.38, last one tested
>> > rc8-gfb62c00, but not with 2.6.37 with exactly same userspace.
>> > Needed to try the effect several times, as this time the lockup with
>> > 2.6.38 only happened shortly after the second activation of the
>> > effect.
>>
>> Hmm, can you attach Xorg logs from both?
>
> Attached. I have dmesgs available as well. Both kernels are mainly
> upstream. The 2.6.37 contains some recursive mtime patches from Jan for
> Ext3/4 that are very likely unrelated. For 2.6.38 I am testing too
> hibernation patches from Raphael, but the lockup also happened with a
> plain vanilla 2.6.38 one before.
>
>> I'm guessing its either pageflipping or a later kernel allowing some
>> feature of mesa to be used.

Okay can you try using an xorg.conf with Option "pageflip" "false" set
in it for the radeon.

Dave.
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