[Bug 52945] New: kernel32:sync - test_condvars_base() fails randomly on Windows 10 1709+

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52945

Bug ID: 52945
           Summary: kernel32:sync - test_condvars_base() fails randomly on
                    Windows 10 1709+
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: kernel32
          Assignee: [e-mail]
          Reporter: [e-mail]

kernel32:sync's test_condvars_base() fails randomly on Windows 10 1709+:

sync.c:1859: Test failed: SleepConditionVariableCS should still return TRUE on
crit unlock delay

https://test.winehq.org/data/patterns.html#kernel32:sync

Based on the current test results the failure happens roughly 11% of the time
and may happen twice in a run about 0.8% of the time. It happens on both bare
metal (cw-gtx560, cw-rx460) and in VMs so it's not a QEmu issue.

Yet I have not been able to reproduce the failure so far, even when looping on
test_condvars_base() 1000 times. I also tried to see if some other test was the
trigger but that did not work out either.

Back in the day I tentatively noted that the failures may have started on
2021-09-13 (cw-gtx560 1809) or 2021-10-01 (all others); but I was obviously
never able to pinpoint it and given how elusive the failure is, you should take
that with a pinch of salt.