[Bug 107941] New: GPU hang and system crash with Dota 2 using Vulkan

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107941

            Bug ID: 107941
           Summary: GPU hang and system crash with Dota 2 using Vulkan
           Product: DRI
           Version: unspecified
          Hardware: Other
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: leozinho29_eu at hotmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 141570
  --> https://bugs.freedesktop.org/attachment.cgi?id=141570&action=edit
Compressed file with relevant files

When playing Dota 2 with Vulkan, it's noticed that there are many occasions
where a GPU hang happens and, if using 4.18 or newer kernel, causes a system
crash a few seconds later. The GPU hang is observed with 4.17.19, but the
system crash is not.

The workaround is to use INTEL_DEBUG=nohiz as one of the environment variables,
but there is performance degradation. 

The attached file has the following content:

The GPU hang log, it has 2,6 MB;
The dmesg output which unfortunately has nothing about the system crash;
One screenshot (with the two monitors) showing what was the screen when the GPU
hang happened;
One screenshot (single monitor) showing Dota 2's video settings;
One sound file with an approximation of what was the sound when the system
crashed. Please note the sound is unpleasing to hear.

The GPU hang seems similar to
https://bugs.freedesktop.org/show_bug.cgi?id=107760

Dota 2 is being affected by https://bugs.freedesktop.org/show_bug.cgi?id=107899
too.

Processor: Intel Core i3-6100U;
Video: Intel HD Graphics 520;
Architecture: amd64;
Mesa: 18.3.0-devel (git-914bd3014f);
Kernel version: drm-tip (feeccde66999c5e87be3550f2159e5d7eeb61c67)
Distribution: Xubuntu 18.04.1 amd64.

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