[OSADL QA 3.18.9-rt4 #1] Radeon driver hangs

[Michel Dänzer]

On 13.03.2015 08:23, Carsten Emde wrote:
> (About 30 OSADL QA Farm systems are now running 3.18.9-rt4. BTW: To
> check out what kernels are under test you may sort the kernel list
> (https://www.osadl.org/?id=933) by kernel version
> (https://www.osadl.org/?id=1001) and scroll down the page.)
> 
> The most striking problem of kernel 3.18.9-rt4 affects all systems that
> are equipped with Radeon graphics (irrespective whether PCIe cards or
> APUs with on-chip graphics). They suffer from a hanging radeon driver.
> The block occurs when accelerated graphics load is created by x11perf or
> gltestperf. Sometimes only the graphics are frozen while ssh login still
> is possible, somtimes the entire box is no longer accessible at all. In
> any case, a reboot is needed to recover from this situation.
> 
> Here is a selection of kernel messages:

[...]

The commits from
http://cgit.freedesktop.org/~airlied/linux/commit/?h=drm-fixes&id=f957063fee6392bb9365370db6db74dc0b2dce0a
to
http://cgit.freedesktop.org/~airlied/linux/commit/?h=drm-fixes&id=cffefd9bb31cd35ab745d3b49005d10616d25bdc
and
http://cgit.freedesktop.org/~airlied/linux/commit/?h=drm-fixes&id=b6610101718d4ab90d793c482625e98eb1262cad
might help for this.


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer