On Wed, Feb 27, 2013 at 3:20 PM, Josh Boyer <jwboyer@xxxxxxxxx> wrote: > On Wed, Feb 27, 2013 at 11:34 AM, Josh Boyer <jwboyer@xxxxxxxxx> wrote: >> On Mon, Feb 25, 2013 at 7:05 PM, Dave Airlie <airlied@xxxxxxxx> wrote: >>> Alex Deucher (29): >>> drm/radeon: halt engines before disabling MC (6xx/7xx) >>> drm/radeon: halt engines before disabling MC (evergreen) >>> drm/radeon: halt engines before disabling MC (cayman/TN) >>> drm/radeon: halt engines before disabling MC (si) >>> drm/radeon: use the reset mask to determine if rings are hung >> >> Something in this series of commits is causing the GPU to hang on reboot >> on my Dell XPS 8300 machine. That has a: >> >> 01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee >> ATI Caicos [Radeon HD 6450] >> >> card in it. After reboots, I get a screen that looks like this: >> >> http://t.co/tPnT6xQZUK >> >> I can hit it fairly consistently after a few reboots, so I tried doing a >> git bisect on the radeon driver and it came down to: >> >> ca57802e521de54341efc8a56f70571f79ffac72 is the first bad commit > > So I don't think that's actually the cause of the problem. Or at least > not that alone. I reverted it on top of Linus' latest tree and I still > get the lockups. Actually, git bisect does seem to have gotten it correct. Once I actually tested the revert of just that on top of Linus' tree (commit d895cb1af1), things seem to be working much better. I've rebooted a dozen times without a lockup. The most I've seen it take on a kernel with that commit included is 3 reboots, so that's definitely at least an improvement. Now that I seem to have narrowed down which commit is broken, I'd be happy to test fixes, etc. Sorry for the noise from earlier today. josh _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
