.
Thread 3 (process 31456):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xf783fa9e in sem_wait@GLIBC_2.0 () from /lib32/libpthread.so.0
#2  0xf6d8e3a8 in ?? ()
#3  0xf5cc7cec in ?? ()
#4  0xf7848ff4 in ?? () from /lib32/libpthread.so.0
#5  0x00000000 in ?? ()
.
Thread 2 (process 31462):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xf783dd3c in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib32/libpthread.so.0
#2  0xf6d859df in ?? ()
#3  0xf513a174 in ?? ()
#4  0xf513a1a4 in ?? ()
#5  0xf513a1bc in ?? ()
#6  0x00000000 in ?? ()
.
Thread 1 (process 31442):
#0  0xf6d5b2e8 in ?? ()
#1  0xffdf90b8 in ?? ()
#2  0xf70953a3 in ?? ()
#3  0x00000000 in ?? ()