[Intel-gfx] gen6 (SNB) GPU still stalling besides latest patches

[Andrew Lutomirski]

On Tue, Jun 21, 2011 at 3:11 PM, Chris Wilson <chris at chris-wilson.co.uk> wrote:
> On Tue, 21 Jun 2011 20:38:51 +0200 (CEST), "Nicolas Kalkhof" <nkalkhof at web.de> wrote:
>> Thanks for bringing that up. Is there a bug report for this issue? I was just about to file a report myself but I don't want to create any duplicates.
>>
>> @Chris: What do you mean with giving X a kick? Neither mouse nor keyboard are responding anymore. Killing X from a remote ssh is the only option. :(
>
> ssh from-other-machine killall -INT X; is the only way to do it because X
> is blocked waiting for an event /dev/dri/card0.
>
>> Btw. This only happens with SNA enabled. When using the classic (UXA?), dropping back to framebuffer console works fine.
> It's a consequence of handling zaphod and trying to drain all in-fligh DRI2
> events to paper-over a crash should one arrive after the Xserver has freed
> all Resources without calling the destroy handlers...

Shouldn't sysrq-v switch even if X isn't cooperating, though?

--Andy