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the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
focal' to 'verification-done-focal'. If the problem still exists, change
the tag 'verification-needed-focal' to 'verification-failed-focal'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

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** Tags added: verification-needed-focal

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-oem-5.6 in Ubuntu.
https://bugs.launchpad.net/bugs/1909453

Title:
  S3 stress test fails with amdgpu errors

Status in HWE Next:
  New
Status in linux-oem-5.6 package in Ubuntu:
  Invalid
Status in linux-oem-5.6 source package in Focal:
  Fix Committed

Bug description:
  [Impact]
  It fails to resume from S3 with below error messages
     Nov 17 03:15:27 u kernel: amdgpu 0000:04:00.0:[drm:amdgpu_ring_test_helper 
[amdgpu]] ERROR ring vcn_dec test failed (-110)
     Nov 17 03:15:27 u kernel: [drm:amdgpu_device_ip_resume_phase2 [amdgpu]] 
ERROR resume of IP block <vcn_v1_0> failed -110
     Nov 17 03:15:27 u kernel: [drm:amdgpu_device_resume [amdgpu]] ERROR 
amdgpu_device_ip_resume failed (-110).

  [Fix]
  AMD provides the 2 commits in 5.9-rc1 to fix this issue, and groovy has these 
commits from stable update.
     429f3d24384b drm/amdgpu: asd function needs to be unloaded in suspend phase
     90937420c44f drm/amdgpu: add TMR destory function for psp

  [Test]
  Verified on problematic Dell machine,and it passes 500 S3 test.

  [Where problems could occur]
  TMR will be created after resumed, so it should be destroyed while entering 
S3. The patch does what is required, should be pretty safe to include this 
commit.

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