[Bug 111139] linux 5.2: rare NULL pointer dereference when SteamVR idles

[Bug 111139] linux 5.2: rare NULL pointer dereference when SteamVR idles

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https://bugs.freedesktop.org/show_bug.cgi?id=111139

            Bug ID: 111139
           Summary: linux 5.2: rare NULL pointer dereference when SteamVR
                    idles
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: haagch@frickel.club

Created attachment 144791
  --> https://bugs.freedesktop.org/attachment.cgi?id=144791&action=edit
dmesg with null pointer dereference

Vega 64, mesa git b68778e6de2, Linux 5.2.

I am relatively sure this started happening with linux 5.2 and that this did
not happen on 5.1.

When SteamVR is idle for a while (i.e. the VR headset is not moved), it stops
rendering to not waste resources.

When it does this, there is a chance that a kernel bug happens, see attached
dmesg.

It does not happen very often, but often enough that I'm relatively sure it
started happening with 5.2.

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[Bug 111139] linux 5.2: rare NULL pointer dereference when SteamVR idles

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https://bugs.freedesktop.org/show_bug.cgi?id=111139

--- Comment #1 from Christoph Haag <haagch@frickel.club> ---
I'm being told that this bug does not only happen with SteamVR, and that it has
been triggered without SteamVR running, possibly by Chrome/Chromium.

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[Bug 111139] linux 5.2: rare NULL pointer dereference when SteamVR idles

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https://bugs.freedesktop.org/show_bug.cgi?id=111139

Martin Peres <martin.peres@free.fr> changed:

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

--- Comment #2 from Martin Peres <martin.peres@free.fr> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/874.

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