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SubjectRe: linux-next: Tree for December 17 (Radeon DRM BUG)
Date
On Thursday 18 December 2008, Dave Airlie wrote:
> On Thu, Dec 18, 2008 at 10:14 AM, Kevin Winchester
> <kjwinchester@gmail.com> wrote:
> > Stephen Rothwell wrote:
> >>
> >> Hi all,
> >>
> >>
> >
> > I get the following BUG in the radeon drm code with today's linux-next when
> > I run "startx". I have not built or tested linux-next in a while, but the
> > problem definitely does not occur in mainline.

[...]

This reminds me that drm tree in linux-next still results in BSOD (Black
Screen Of Death) on starting X for me (as reported on Saturday [1]).

Actually there is more to it as I discovered that my custom X radeon driver
(which is xorg-x11-drv-ati-6.9.0-61.fc10.i386 with "radeon: no need for this
anymore" from radeon-gem-cs change reverted, please see [2] for my previous
monologue) works fine while following stock driver versions:

xorg-x11-drv-ati-6.8.0-19.fc9.i386
xorg-x11-drv-ati-6.9.0-61.fc10.i386
xorg-x11-drv-ati-6.9.0-62.fc10.i386

result in BSOD. OTOH they all work with next-20081128 (modulo hangs with
fc10 ones when "radeon: no need for this anymore" change is not reverted).

[ BTW xorg-x11-drv-ati-6.9.0-62.fc10.i386 still causes hangs when used with
non-Fedora kernels and Fedora/kms kernel still has performance problems ]

IOW there are a lot of compatibility issues in recent drm/radeon changes.

Dave, could you please start looking into these problems? I'm sure that we
all want recent drm changes + kms in 2.6.29 but given tight schedule and the
way things are looking right now I'm quite sceptical...

[1] http://lkml.org/lkml/2008/12/13/76
[2] http://lkml.org/lkml/2008/12/13/77

Thanks,
Bart


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