[Bug 54036] New: user32:msg - test_paint_messages() sometimes gets an invalid WM_NCPAINT wParam in Wine (GitLab CI)

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=54036

            Bug ID: 54036
           Summary: user32:msg - test_paint_messages() sometimes gets an
                    invalid WM_NCPAINT wParam in Wine (GitLab CI)
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: user32
          Assignee: wine-bugs(a)winehq.org
          Reporter: fgouget(a)codeweavers.com
      Distribution: ---

user32:msg - test_paint_messages() sometimes gets an invalid WM_NCPAINT wParam
in Wine:

msg.c:8472: Test failed: InvalidateErase: 0: in msg 0x0085 expecting wParam 0x1
got 0x52040090
msg.c:8497: Test failed: InvalidateErase: 0: in msg 0x0085 expecting wParam 0x1
got 0x270400a1
msg.c:8527: Test failed: InvalidateErase: 0: in msg 0x0085 expecting wParam 0x1
got 0x58040096
msg.c:8540: Test failed: InvalidateErase: 0: in msg 0x0085 expecting wParam 0x1
got 0x3304009d
msg.c:8554: Test failed: InvalidateErase: 0: in msg 0x0085 expecting wParam 0x1
got 0x6f040090

Where 0x85 == WM_NCPAINT

See https://test.winehq.org/data/patterns.html#user32:msg

Strangely enough this only happens in the GitLab CI Wine environment. As such
it has impacted multiple MRs (e.g. MR!1342 MR!1341 MR!1326).

This is also very similar to bug 53129 except that:
* Bug 53129 has extra "region" test failures that don't happen here.
* The places where the failures occur in test_paint_messages() seem a bit
different.
* This only happens in Wine whereas bug 53129 only happens on Windows 7.

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[Bug 54036] user32:msg - test_paint_messages() sometimes gets an invalid WM_NCPAINT wParam in Wine (GitLab CI)

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=54036

François Gouget <fgouget(a)codeweavers.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |source, testcase

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