[Bug 99130] [IVB] CONFIG_PROVE_LOCKING=y causes igt/gem_exec/basic-wait-all (and possibly others) to fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99130

            Bug ID: 99130
           Summary: [IVB] CONFIG_PROVE_LOCKING=y causes
                    igt/gem_exec/basic-wait-all (and possibly others) to
                    fail
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: IGT
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: dorota.czaplejewicz at collabora.co.uk

Created attachment 128524
  --> https://bugs.freedesktop.org/attachment.cgi?id=128524&action=edit
basic-wait-all log

Kernels built with the default CI config (e.g.
https://intel-gfx-ci.01.org/CI/CI_DRM_1968/kernel.config.bz2 ) will trigger
failures in the test
igt/gem_exec/basic-wait-all
The failures will rarely appear immediately; for faithful reproduction, running
the test several times consecutively is needed (at least 4 times). Afterwards,
the failures will be constant.

Changing CONFIG_PROVE_LOCKING from "=y" to "=n" will stop the failures.

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