[Bug 209194] Seg fault with pthread_cond_signal() and pthread_cond_broadcast()

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Mon May 2 04:11:10 UTC 2016


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=209194

            Bug ID: 209194
           Summary: Seg fault with pthread_cond_signal() and
                    pthread_cond_broadcast()
           Product: Base System
           Version: 10.2-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: threads
          Assignee: freebsd-threads at FreeBSD.org
          Reporter: michael.cress at cress.us

I have code that is Seg Faulting with the following (partial) stack trace:

#0  0x281fa7cf in pthread_getspecific () from /lib/libthr.so.3
#1  0x28201597 in pthread_cond_signal () from /lib/libthr.so.3

One thread exclusively is pthread_cond_timedwait()'ing on an initialized
pthread_cond_t variable. Signalling occurs from another thread using
pthread_cond_signal()/_broadcast(). Does anyone have any ideas on why this seg
fault is occuring/why the pthread_getspecific() internal call is failing?

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