
PROBLEM: (93806, FR_G04269, NL_G05189) (PATCH ID: OSF520-874)
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Any threaded application that uses XTI/TLI could terminate or hang with an
internal mutex locked if t_snddis() is called while another thread is
receiving an event.  Typical application error messages may include
the following example from Visual Threads:
Error: programmingError.missingUnlock in libpthread.so
 Thread <xx>_<xx>@<some location> terminated while holding
 Mutex_<xx>@__init_xtilib.

or a typical kernel stack trace of the hung/block thread:

 thread_block()
 sleep_prim
 mpsleep
 osr_sleep
 osr_getmsg_subr
 osr_getmsg
 .
 .
 .
 _Xsyscall



