.
Thread 4 (process 9255):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xf78b0d8b in write () from /lib32/libpthread.so.0
#2  0xf7a38b66 in ?? ()
#3  0x00000002 in ?? ()
#4  0xf7a6f0cc in ?? ()
#5  0x00000001 in ?? ()
#6  0xf7aa6248 in ?? ()
#7  0x00000002 in ?? ()
#8  0xffc71469 in ?? ()
#9  0xffc71488 in ?? ()
#10 0xf7a38bf4 in ?? ()
#11 0xffc7143a in ?? ()
#12 0xffc714e7 in ?? ()
#13 0xf7adeecb in ?? ()
#14 0xf7ae9548 in ?? ()
#15 0xf7893940 in ?? () from /lib32/libc.so.6
#16 0x00000000 in ?? ()
.
Thread 3 (process 9273):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xf78adf15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib32/libpthread.so.0
#2  0xf6bde728 in ?? ()
#3  0xf5aba10c in ?? ()
#4  0xf5aba13c in ?? ()
#5  0x00000000 in ?? ()
.
Thread 2 (process 9274):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xf78b0175 in sem_wait@@GLIBC_2.1 () from /lib32/libpthread.so.0
#2  0xf6be88d8 in ?? ()
#3  0xf5abcd70 in ?? ()
#4  0x00000000 in ?? ()
.
Thread 1 (process 9272):
#0  0xf7ad478c in ?? ()
#1  0x00000014 in ?? ()
#2  0x080ce234 in ?? ()
#3  0xf594ed28 in ?? ()
#4  0xf7a37d4d in ?? ()
#5  0x00000014 in ?? ()
#6  0x00000010 in ?? ()
#7  0xf7ae0428 in ?? ()
#8  0xf594ed3c in ?? ()
#9  0xf594ee38 in ?? ()
#10 0xf7f0f140 in ?? () from /lib/ld-linux.so.2
#11 0xf7abb0bd in ?? ()
#12 0xf7ae89a4 in ?? ()
#13 0x0000004c in ?? ()
#14 0xf7ae0428 in ?? ()
#15 0xf7ae0a2a in ?? ()
#16 0xf7744a7a in ?? ()
#17 0xf7744920 in ?? ()
#18 0x00000000 in ?? ()