[Bug 87710] New: Kicking stuck semaphore on render ring

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87710

            Bug ID: 87710
           Summary: Kicking stuck semaphore on render ring
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: alinm.elena at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 111327
  --> https://bugs.freedesktop.org/attachment.cgi?id=111327&action=edit
/sys/class/drm/card0/error

doing nothign special got this crash...

in order to avoid other GPU Hangs.

the only special settings that I have
Section "Device"
   Identifier  "Intel Graphics"
   Driver      "intel"
#   Option      "AccelMethod"  "uxa"
   Option       "DRI" "False"
EndSection
and a i915.semaphores=1 at boot

All this on kde framewroks 5 and plasma 2


[15:45:20 alin at abaddon:~]: dmesg | grep drm
[    3.513647] [drm] Initialized drm 1.1.0 20060810
[    3.533279] [drm] Memory usable by graphics device = 2048M
[    3.533298] fb: switching to inteldrmfb from EFI VGA
[    3.533608] [drm] Replacing VGA console driver
[    3.541436] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    3.541445] [drm] Driver supports precise vblank timestamp query.
[    3.623823] [drm] Initialized i915 1.6.0 20141121 for 0000:00:02.0 on minor
0
[    3.673390] [drm] GMBUS [i915 gmbus vga] timed out, falling back to bit
banging on pin 2
[    3.684791] fbcon: inteldrmfb (fb0) is primary device
[    4.936417] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[  812.894095]  battery tpm_tis tpm ac processor efivarfs i915 i2c_algo_bit
drm_kms_helper drm video button sg
[10357.271084] [drm] GPU HANG: ecode 7:-1:0x00000000, reason: Kicking stuck
semaphore on render ring, action: continue
[10357.271105] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[10357.271110] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[10357.271115] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[10357.271119] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[10357.271124] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[15:45:28 alin at abaddon:~]:

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