Bug 97123

Summary:

[AMDGPU][CIK] Suspend to disk deadlocks system on resume always (Linus master + drm-next-4.9-wip)

Product:

DRI

Reporter:

Shawn Starr <shawn.starr>

Component:

DRM/AMDgpu

Assignee:

Default DRI bug account <dri-devel>

Status:

RESOLVED FIXED

QA Contact:

Severity:

normal

Priority:

medium

CC:

mike

Version:

unspecified

Hardware:

Other

OS:

All

Whiteboard:

i915 platform:

i915 features:

Attachments:

Description	Flags
corruption seen during freeze() in hibernation	none

Description Shawn Starr 2016-07-29 03:20:47 UTC

I've been testing AMDGPU with CIK (Bonaire), in drm-next-4.8-wip / drm-next-4.8, hibernation sometime worked sometime not.

With drm-next-4.9-wip (with Linus master merged), hibernation works, resume fails after image is loaded, system is deadlocked.

Is there any debugging I can do testing path?

Comment 1 Shawn Starr 2016-08-24 04:24:12 UTC

Created attachment 125989 [details]
corruption seen during freeze() in hibernation

Comment 2 Shawn Starr 2016-08-24 04:25:52 UTC

With latest patches: 
[PATCH 3/3] drm/amdgpu: reset the asic when hibernating v2

I am not noticing deadlock on resume, still continue to test.

When hibernating the first time, no corruption occurs on freeze state of display, subsequent hibernations show same corruption pattern on freeze.

When resuming no such corruption shows once the GPU finishes init and we resume successfully.

Comment 3 Shawn Starr 2016-08-31 03:54:24 UTC

[PATCH 2/3] drm/amd/amdgpu: sdma resume fail during S4 on CI 
[PATCH 3/3] drm/amd/amdgpu: compute ring test fail during S4 on CI

With patch #2 specifically not upstream yet, the corruption with the image attached is now gone on subsequent freeze()/thaw() cycles.

Comment 4 Shawn Starr 2016-09-04 06:07:02 UTC

Still had a lockup during a freeze() --> Reboot cycle

Will try patch:
[PATCH v2] drm/amd/amdgpu: S4 issue for amdgpu

Comment 5 Shawn Starr 2016-09-09 18:44:24 UTC

[PATCH v2] drm/amd/amdgpu: S4 issue for amdgpu - Works

Still have corruption on freeze() but its non-fatal for thaw() on resume from reboot hibernation.

Will Continue to test additional patches, no lockups so far.

Comment 6 Shawn Starr 2016-10-31 05:51:40 UTC

The original issue is fixed, but a new regression so new bug being filed.

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