[Bug 102226] [Mesa 17.3] Valve Source Games Crash With "intel_do_flush_locked failed: Input/output error"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=102226

            Bug ID: 102226
           Summary: [Mesa 17.3] Valve Source Games Crash With
                    "intel_do_flush_locked failed: Input/output error"
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Drivers/DRI/i915
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: hazardoustheradioactive at gmail.com
        QA Contact: dri-devel at lists.freedesktop.org

I noticed a really nasty bug in the graphics drivers lately.
While playing games based on the source engine, I get GPU hangs.
Here is the relevant info.

OpenGL: Mesa DRI Intel(R) HD Graphics 520 (Skylake GT2) x86/MMX/SSE2 3.0 Mesa
17.3.0-devel (3.0.0)
Linux walaryne-HP-Notebook 4.10.0-27-generic #30~16.04.2-Ubuntu SMP (It says
Ubuntu but it's Mint.)
Thu Jun 29 16:07:46 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

Relevant error from Counter Strike: Source:
intel_do_flush_locked failed: Input/output error

DMESG Relevant error(s):
[  445.882919] [drm] GPU HANG: ecode 9:0:0x85dffffb, in hl2_linux [2128],
reason: Hang on render ring, action: reset
[  445.882962] drm/i915: Resetting chip after gpu hang
[  445.883020] [drm] RC6 off
[  445.897614] [drm] GuC firmware load skipped
[  457.834654] drm/i915: Resetting chip after gpu hang
[  457.834740] [drm] RC6 off
[  457.848586] [drm] GuC firmware load skipped
[  458.024493] hl2_linux[2128]: segfault at 0 ip           (null) sp
00000000ffd2453c error 14 in hl2_linux[8048000+1000]


I sincerely hope this helps fix the problem.

P.S,
I did attempt to run the game with RC6 enabled and disabled,
including frame buffer compression, neither made any effect.

Steps to reproduce:
1. Launch a Source based game (CS:S, CS:GO, TF2, etc.)
2. Play as normal.
3. Crash seems to occur 5 to 10 minutes through gameplay.

This is my first time submitting a bug report, I hope it looks right.

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