#0  0x287125b7 in pthread_testcancel () from /lib/libpthread.so.2
#1  0x286ffc01 in sigaction () from /lib/libpthread.so.2
#2  0x286ffeed in sigaction () from /lib/libpthread.so.2
#3  0x287006cc in sigaction () from /lib/libpthread.so.2
#4  0x28700878 in sigaction () from /lib/libpthread.so.2
#5  0x2870aec8 in pthread_mutexattr_init () from /lib/libpthread.so.2
#6  0x2871d450 in ?? ()