[Bug 109661] [CI][SHARDS] igt at gem_eio@unwedge-stress - fail - Failed assertion: med < limit && max < 5 * limit

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109661

--- Comment #19 from Chris Wilson <chris at chris-wilson.co.uk> ---
<7> [944.138584] [IGT] Forcing GPU reset
<7> [944.138848] [drm:i915_reset_device [i915]] resetting chip
<5> [944.138957] i915 0000:00:02.0: Resetting chip for Manually set wedged
engine mask = ffffffffffffffff
<7> [944.139197] [IGT] Checking that the GPU recovered
<5> [944.162438] Setting dangerous option reset - tainting kernel
<7> [944.275166] [drm:i915_reset_device [i915]] resetting chip
<5> [944.276899] i915 0000:00:02.0: Resetting chip for Manually set wedged
engine mask = ffffffffffffffff
<5> [944.277178] Setting dangerous option reset - tainting kernel
<7> [944.277284] [IGT] Forcing GPU reset
<7> [944.277557] [drm:i915_reset_device [i915]] resetting chip
<5> [944.278273] i915 0000:00:02.0: Resetting chip for Manually set wedged
engine mask = ffffffffffffffff
<7> [944.278579] [IGT] Checking that the GPU recovered
<5> [944.302432] Setting dangerous option reset - tainting kernel
<7> [946.381889] [drm:i915_reset_device [i915]] resetting chip
<5> [946.382011] i915 0000:00:02.0: Resetting chip for Manually set wedged
engine mask = ffffffffffffffff
<5> [946.382270] Setting dangerous option reset - tainting kernel
<7> [946.382345] [IGT] Forcing GPU reset
<7> [946.382557] [drm:i915_reset_device [i915]] resetting chip
<5> [946.383318] i915 0000:00:02.0: Resetting chip for Manually set wedged
engine mask = ffffffffffffffff
<7> [946.383621] [IGT] Checking that the GPU recovered
<6> [946.475026] [IGT] gem_eio: exiting, ret=98

Which confirms that normally we expect quick reset+recovery cycles (with a
reset period of 100ms between iterations). It also tells us that the delay is
before i915_reset_device (although we could do with drm.debug=7 to be sure),
which is the preamble in i915_handle_error(). Of note the only thing there is
synchronize_rcu_expedited(). :|

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