[Bug 1731] New: pthread_join() returns ESRCH if target thread already terminated

[bugzilla-daemon at rtems.org]

https://www.rtems.org/bugzilla/show_bug.cgi?id=1731

           Summary: pthread_join() returns ESRCH if target thread already
                    terminated
           Product: RTEMS
           Version: 4.9
          Platform: All
        OS/Version: RTEMS
            Status: NEW
          Severity: normal
          Priority: P3
         Component: cpukit
        AssignedTo: joel.sherrill at oarcorp.com
        ReportedBy: gtaylor at jpl.nasa.gov


Calling pthread_join() on a target thread that has already terminated returns
ESRCH.

The error is occurring under the following condition:

Two threads are created. Both threads terminate on the same condition. That
terminating condition is set in the calling thread, then pthread_join() is
called on each target thread. The first call succeeds, and the second call to
pthread_join() always fails, no matter the order in which the threads were
specified.

According to the pthread_join() documentation, "if thread has already
terminated, then this routine returns immediately." I read that as it should
return success immediately.

I found this from 2001, but it looks like it was never followed up:
http://www.rtems.com/ml/rtems-users/2001/august/msg00169.html

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