[Bug 102322] System crashes after "[drm] IP block:gmc_v8_0 is hung!" / [drm] IP block:sdma_v3_0 is hung!

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=102322

--- Comment #18 from dwagner <jb5sgc1n.nya at 20mm.eu> ---
The good news: So far no crashes during normal uptime with
amdgpu.vm_update_mode=3

The bad news: System crashes immediately upon S3 resume (with messages quite
different from the ones I saw with earlier S3-resume crashes) - I filed bug
report https://bugs.freedesktop.org/show_bug.cgi?id=107065 on this.

(In reply to Andrey Grodzovsky from comment #17)
> dwagner, this is obviously just a work around and not a fix. It points to
> some problem with SDMA packets, if you want to continue exploring we can try
> to dump some fence traces and SDMA HW ring content to examine the latest
> packets before the hang happened.

If you can include some debug output into "amd-staging-drm-next" that helps
finding the root cause, I might be able to provide some output - if the kernel
survives long enough after the crash to write the system journal - this has not
always been the case.

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/dri-devel/attachments/20180628/7db3c005/attachment.html>