id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
4121	locking of boost::timed_mutex results in segmentation fault on linux x64	Andrew Tylychko <andriy.tylychko@…>	Anthony Williams	"Linux version 2.6.24-27-generic (buildd@crested) (gcc version 4.2.4 (Ubuntu 4.2.4-1ubuntu3)) #1 SMP Fri Mar 12 00:52:19 UTC 2010
x64

intensive usage of boost::timed_mutex::scoped_lock from many threads with the same timed_mutex results in segmentation fault. Sample code is attached. It catches SIGSEGV signal in about 5-10 secs of normal operation and prints stack traces. 

Stack traces show:

#5  <signal handler called>

#6  0x00007f5834551244 in __lll_timedlock_wait () from /lib/libpthread.so.0

#7  0x00007f583454d9ac in _L_timedlock_161 () from /lib/libpthread.so.0

#8  0x00007f583454d230 in pthread_mutex_timedlock () from /lib/libpthread.so.0

#9  0x000000000040a2f0 in thread_func ()

"	Bugs	closed	Boost 1.43.0	thread	Boost 1.42.0	Showstopper	invalid