[Bug 65761] HD 7970M Hybrid (original) (raw)

[Bug 65761] HD 7970M Hybrid - hangs and errors and rmmod causes crash

bugzilla-daemon at bugzilla.kernel.org bugzilla-daemon at bugzilla.kernel.org
Sun Feb 2 15:58:35 PST 2014

https://bugzilla.kernel.org/show_bug.cgi?id=65761

--- Comment #30 from Christoph Haag <haagch.christoph at googlemail.com> --- Created attachment 124221 --> https://bugzilla.kernel.org/attachment.cgi?id=124221&action=edit sysprof with 2 xterm windows and kwin

I still kind of want to try the opposite direction, to find out what X does that keeps the gpu awake so I'm trying to get a good dynamic call graph. The first thing that kind of worked is sysprof...

So I started recording this after starting X and two xterms and kwin on the intel gpu and just clicked a bit between the two because it seems this triggers whatever happens. The radeon gpu was not even configured as offload slave, just default X configuration.

If I saw that correctly none of the applications called functions from the radeon driver which is probably good, but in X you can see this (more detail is available in the file):

[/usr/bin/X] 0,00% 65,99% In file [heap] 0,00% 29,73% ioctl 0,18% 16,17% - - kernel - - 0,00% 15,99% system_call_fastpath 0,00% 15,99% sys_ioctl 0,04% 15,99% do_vfs_ioctl 0,00% 15,63% radeon_drm_ioctl 0,11% 15,60% drm_ioctl 0,43% 14,63% __pm_runtime_suspend 0,00% 0,57% __pm_runtime_resume 0,04% 0,14% copy_user_enhanced_fast_string 0,07% 0,07% irq_exit 0,00% 0,04% _copy_from_user 0,04% 0,04% drm_ioctl 0,04% 0,04% fget_light 0,25% 0,25% radeon_drm_ioctl 0,04% 0,04% fput 0,04% 0,04%

I have only this GPU so I don't have any comparison to one where runpm works correctly, whether it should be this active... Maybe it's interesting that stuff like __pm_runtime_suspend and __pm_runtime_resume is called?

-- You are receiving this mail because: You are watching the assignee of the bug.

More information about the dri-devel mailing list