.
Thread 4 (process 9245):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xf78f1f15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib32/libpthread.so.0
#2  0xf6c22ff8 in ?? ()
#3  0xf5afe03c in ?? ()
#4  0xf5afe06c in ?? ()
#5  0xf59492f8 in ?? ()
#6  0xf6c22ecf in ?? ()
#7  0xf5afe0d4 in ?? ()
#8  0x00000000 in ?? ()
.
Thread 3 (process 9246):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xf78f1f15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib32/libpthread.so.0
#2  0xf6c22ff8 in ?? ()
#3  0xf5afe10c in ?? ()
#4  0xf5afe13c in ?? ()
#5  0x00000000 in ?? ()
.
Thread 2 (process 9247):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xf78f4175 in sem_wait@@GLIBC_2.1 () from /lib32/libpthread.so.0
#2  0xf6c2d1a8 in ?? ()
#3  0xf5b00d70 in ?? ()
#4  0x00000000 in ?? ()
.
Thread 1 (process 9232):
#0  0x00000000 in ?? ()
#1  0xf6b2e31d in ?? ()
#2  0xf5bb1400 in ?? ()
#3  0xf5b0d920 in ?? ()
#4  0x00000000 in ?? ()