[Bug 216120] New: [BISECTED][REGRESSION] drm/amdgpu: add drm buddy support to amdgpu

[Bug 216120] New: [BISECTED][REGRESSION] drm/amdgpu: add drm buddy support to amdgpu

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=216120

            Bug ID: 216120
           Summary: [BISECTED][REGRESSION] drm/amdgpu:  add drm buddy
                    support to amdgpu
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.19-rc1
          Hardware: Intel
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: mat200300h@gmail.com
        Regression: No

KDE plasma panel at the bottom of the desktop is empty. If I revert the patch
drm/amdgpu: add drm buddy support to amdgpu    
c9cad937c0c58618fe5b0310fd539a854dc1ae95 the panel shows widgets and running
programs again. Fortunately the patch seems to revert cleanly.

BISECT_LOG and lspci attached

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[Bug 216120] [BISECTED][REGRESSION] drm/amdgpu: add drm buddy support to amdgpu

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=216120

--- Comment #1 from mat200300h@gmail.com ---
Created attachment 301164
  --> https://bugzilla.kernel.org/attachment.cgi?id=301164&action=edit
BISECT_LOG

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[Bug 216120] [BISECTED][REGRESSION] drm/amdgpu: add drm buddy support to amdgpu

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=216120

--- Comment #2 from mat200300h@gmail.com ---
Created attachment 301165
  --> https://bugzilla.kernel.org/attachment.cgi?id=301165&action=edit
BISECT_LOG

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[Bug 216120] [BISECTED][REGRESSION] drm/amdgpu: add drm buddy support to amdgpu

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=216120

mat200300h@gmail.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Regression|No                          |Yes

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[Bug 216120] [BISECTED][REGRESSION] drm/amdgpu: add drm buddy support to amdgpu

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=216120

--- Comment #3 from mat200300h@gmail.com ---
same bad commit:
https://gitlab.freedesktop.org/drm/amd/-/issues/2050

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[Bug 216120] [BISECTED][REGRESSION] drm/amdgpu: add drm buddy support to amdgpu

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=216120

--- Comment #4 from mat200300h@gmail.com ---
this patch:

https://gitlab.freedesktop.org/drm/amd/uploads/564b2cc2b5ea87357f39e45c3a1a44e2/0001-drm-amdgpu-Fix-for-drm-buddy-memory-corruption.patch

on top of 5.19.0-rc6 seems to fix the problem

tested:

5.19.0-rc6: NOT OK

5.19.0-rc6+0001-drm-amdgpu-Fix-for-drm-buddy-memory-corruption.patch: OK

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[Bug 216120] [BISECTED][REGRESSION] drm/amdgpu: add drm buddy support to amdgpu

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https://bugzilla.kernel.org/show_bug.cgi?id=216120

--- Comment #5 from mat200300h@gmail.com ---
Created attachment 301427
  --> https://bugzilla.kernel.org/attachment.cgi?id=301427&action=edit
journal 2022-07-14

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[Bug 216120] [BISECTED][REGRESSION] drm/amdgpu: add drm buddy support to amdgpu

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=216120

--- Comment #6 from mat200300h@gmail.com ---
not quite there yet, after some hours of working with latest
linus+0001-drm-amdgpu-Fix-for-drm-buddy-memory-corruption.patch (latest commit
"vf/remap: return the amount of bytes actually deduplicated") display stopped
working, keyboard was working so I could reboot blindly. Part of journal
attached in comment 5. Maybe different bug.

I could perhaps bisect adding the patch to relevant steps but now I have had
too many gin&tonics and seem to be talking to myself anyway.

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[Bug 216120] [BISECTED][REGRESSION] drm/amdgpu: add drm buddy support to amdgpu

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=216120

mat200300h@gmail.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |WILL_NOT_FIX

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