https://bugzilla.kernel.org/show_bug.cgi?id=70411

Bug ID: 70411 Summary: 7970M PRIME: lockup with Distance game, recovery doesn't work Product: Drivers Version: 2.5 Kernel Version: 3.13-3.14-rc2 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: haagch.christoph@googlemail.com Regression: Yes

Created attachment 125651 --> https://bugzilla.kernel.org/attachment.cgi?id=125651&action=edit dmesg of radeon getting stuck

00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Wimbledon XT [Radeon HD 7970M]

Using PRIME to render on the gpu etc.

This has been going on for a while and I sadly don't really know since when, maybe later I'll test older kernels.

It has worked some time ago (again, no specifics, but I think it was 3.12 (without dpm, maybe it's relevant).

I report this because this is specifically happening with the Distance game in the Alpha version only available to kickstarter backers (I believe). http://survivethedistance.com/ (Surely there is a way to get this into the hands of driver developers if it is useful for finding out if more GPUs and configurations are affected and fixing bugs!)

Well, it's alpha so it's maybe buggy, but it shouldn't bring the radeon driver down to an unrecoverable status... (I believe restarting X doesn't help and rmmod radeon doesn't really work currently) I don't really see lockups with other 3D programs so this is specifically for Distance.

It's reproducible every time so I can later get more detail. For now there's the dmesg: Starting the game and showing some intro works, but shortly before displaying the menu X freezes for a few seconds and after it is usable again, I see the stuff starting at 82688.801309 in dmesg. The game window is still there, but frozen and killable with -9.

Unfortunately the gpu has not recovered and e.g. trying to run DRI_PRIME=1 glxgears results in the message:

radeon: The kernel rejected CS, see dmesg for more information.