Bug 111139 - linux 5.2: rare NULL pointer dereference when SteamVR idles
Summary: linux 5.2: rare NULL pointer dereference when SteamVR idles
Status: RESOLVED MOVED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/AMDgpu (show other bugs)
Version: DRI git
Hardware: Other All
: medium normal
Assignee: Default DRI bug account
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Reported: 2019-07-15 17:19 UTC by Christoph Haag
Modified: 2019-11-19 09:36 UTC (History)
1 user (show)

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i915 platform:
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Attachments
dmesg with null pointer dereference (97.96 KB, text/plain)
2019-07-15 17:19 UTC, Christoph Haag 		no flags Details
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Description Christoph Haag 2019-07-15 17:19:35 UTC 
Created attachment 144791 [details]
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.
Comment 1 Christoph Haag 2019-07-19 02:31:06 UTC 
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.
Comment 2 Martin Peres 2019-11-19 09:36:43 UTC 
-- 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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