Bug 112193 - [CI][BAT]igt@i915_selftest@live_execlists - dmesg-fail - live_timeslice_preempt failed with error -5
Summary: [CI][BAT]igt@i915_selftest@live_execlists - dmesg-fail - live_timeslice_preem...
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: DRI git
Hardware: Other All
: not set not set
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
Depends on:
Reported: 2019-11-01 13:42 UTC by Lakshmi
Modified: 2019-11-01 13:51 UTC (History)
1 user (show)

See Also:
i915 platform: BXT
i915 features: GEM/Other


Description Lakshmi 2019-11-01 13:42:33 UTC
(i915_selftest:4937) igt_kmod-WARNING: i915/intel_execlists_live_selftests: live_timeslice_preempt failed with error -5
(i915_selftest:4937) igt_kmod-WARNING: [drm:intel_power_well_enable [i915]] enabling always-on
(i915_selftest:4937) igt_kmod-WARNING: [drm:intel_power_well_enable [i915]] enabling DC off
(i915_selftest:4937) igt_kmod-WARNING: [drm:gen9_set_dc_state [i915]] Setting DC state from 01 to 00
(i915_selftest:4937) igt_kmod-WARNING: [drm:intel_power_well_enable [i915]] enabling power well 2
(i915_selftest:4937) igt_kmod-WARNING: [drm:intel_power_well_enable [i915]] enabling dpio-common-a
(i915_selftest:4937) igt_kmod-WARNING: [drm:intel_power_well_enable [i915]] enabling dpio-common-bc
(i915_selftest:4937) igt_kmod-WARNING: i915: probe of 0000:00:02.0 failed with error -5
(i915_selftest:4937) igt_kmod-CRITICAL: Test assertion failure function igt_kselftest_execute, file ../lib/igt_kmod.c:548:
(i915_selftest:4937) igt_kmod-CRITICAL: Failed assertion: err == 0
(i915_selftest:4937) igt_kmod-CRITICAL: kselftest "i915 igt__36__live_execlists=1 live_selftests=-1 disable_display=1 st_filter=" failed: Input/output error [5]
Subtest live_execlists failed.

This issue is split from Bug 112046. Not sure if it affects more than BXT. But now I will start with BXT.
Comment 1 CI Bug Log 2019-11-01 13:43:23 UTC
The CI Bug Log issue associated to this bug has been updated.

### New filters associated

* BXT: igt@i915_selftest@live_execlists - dmesg-fail - live_timeslice_preempt failed with error -5
  (No new failures associated)
Comment 2 Chris Wilson 2019-11-01 13:51:43 UTC
It's not very clear as it dropped the pr_err() for which bug it actually was. My guess is

   if (i915_request_wait(head, 0,
                              2 * RUNTIME_INFO(outer->i915)->num_engines * (count + 2) * (count + 3)) < 0) {
                pr_err("Failed to slice along semaphore chain of length (%d, %d)!\n",
                       count, n);
                err = -EIO;

and likely just bad timing. Nothing to worry about unless it becomes disruptive.

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