[Bug 111936] [ICL] (Recoverable) GPU hangs in TerrainFlyTess with Iris

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Oct 9 14:29:51 UTC 2019


https://bugs.freedesktop.org/show_bug.cgi?id=111936

--- Comment #5 from Eero Tamminen <eero.t.tamminen at intel.com> ---
Created attachment 145684
  --> https://bugs.freedesktop.org/attachment.cgi?id=145684&action=edit
TerrainFlyTess ICL error state (2019-10-09 drm-tip)

Jani extended the ICL loan.


Unfortunately neither drm.debug nor CONFIG_LOCKDEP=y shows anything:
-----------------------------------------------------------------------
[  151.523178] [drm:intel_combo_phy_init [i915]] Combo PHY A already enabled,
won't reprogram it.
[  151.523211] [drm:intel_combo_phy_init [i915]] Combo PHY B already enabled,
won't reprogram it.
[  153.874368] Iteration 1/3: synmark2 OglTerrainFlyTess
[  180.033099] Iteration 2/3: synmark2 OglTerrainFlyTess
[  187.993335] i915 0000:00:02.0: GPU HANG: ecode 11:1:0x00000000, hang on rcs0
[  187.993338] GPU hangs can indicate a bug anywhere in the entire gfx stack,
including userspace.
[  187.993339] Please file a _new_ bug report on bugs.freedesktop.org against
DRI -> DRM/Intel
[  187.993340] drm/i915 developers can then reassign to the right component if
it's not a kernel issue.
[  187.993341] The GPU crash dump is required to analyze GPU hangs, so please
always attach it.
[  187.993342] GPU crash dump saved to /sys/class/drm/card0/error
[  187.993406] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
[  208.151967] Iteration 3/3: synmark2 OglTerrainFlyTess
-----------------------------------------------------------------------

No idea whether the worse reproducibility (1/3 instead of 1/1), is due to using
latest git kernel, or debug options.  Attached is new error state.

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