[Bug 208743] New: suspend and hibernate periodically fail. suspend significantly more often than hibernate.

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=208743

            Bug ID: 208743
           Summary: suspend and hibernate periodically fail. suspend
                    significantly more often than hibernate.
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.19.0-9,5.4.31
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri at kernel-bugs.osdl.org
          Reporter: arjunkc at gmail.com
        Regression: No

Created attachment 290685
  --> https://bugzilla.kernel.org/attachment.cgi?id=290685&action=edit
kernel crash log

I have had this problem for a long long time on amd discrete gpus (currently
Vega). Suspend and hibernate fail every few cycles. I have looked at
[204241/(https://bugzilla.kernel.org/show_bug.cgi?id=204241) but none of the
patches have helped; indeed the patches appear to have already applied post
5.4.3.

Using the internal video (intel i915) stops all suspend and resume failures, so
it's very likely to be the amdgpu drivers.

I can test kernel versions up to 5.7 since my root filesystem is on zfs, and
openzfs does not compile on 5.8.

Attached logs follow.

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