New subject: [Bug 59017] Synchronization barrier cannot be entered multiple times

21 Nov 2025


      http://bugs.winehq.org/show_bug.cgi?id=59017
Bug ID: 59017
           Summary: Synchronization barrier cannot be entered multiple
                    times
           Product: Wine
           Version: 10.19
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: ntdll
          Assignee: wine-bugs@list.winehq.org
          Reporter: m101010a@gmail.com
      Distribution: ---
Created attachment 79756
  --> http://bugs.winehq.org/attachment.cgi?id=79756
Sample program from The Old New Thing
When running the sample program at
https://devblogs.microsoft.com/oldnewthing/20151123-00/?p=92161 (also attached
as sample.c), the second call to EnterSynchronizationBarrier does not work
properly. Instead of returning false and blocking for the first 3 threads and
then returning true for the last thread, it returns true and does not block all
4 times, causing the program to print "Locking the door" 4 times instead of
only once, and causing the threads to not synchronize between printing "Leaving
the room" and "Saying good-bye and going home".
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[Bug 59017] New: Synchronization barrier cannot be entered multiple times