.
Thread 4 (process 5803):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7ec784c in pthread_cond_timedwait@@GLIBC_2.3.2 ()
   from /lib/tls/i686/cmov/libpthread.so.0
#2  0x0811c1c7 in ?? ()
#3  0xb78ed5a8 in ?? ()
#4  0xb78ed590 in ?? ()
#5  0xbfb7ecf0 in ?? ()
#6  0x081196a9 in ?? ()
#7  0x0811b001 in ?? ()
#8  0x00000006 in ?? ()
#9  0x4608ec88 in ?? ()
#10 0x21ad3740 in ?? ()
#11 0x0000040d in ?? ()
#12 0x08229a48 in ?? ()
#13 0xbfb7ed30 in ?? ()
#14 0x0811c457 in ?? ()
#15 0xb78ed5a8 in ?? ()
#16 0xb78ed590 in ?? ()
#17 0xbfb7eda0 in ?? ()
#18 0x00000001 in ?? ()
#19 0x00000000 in ?? ()
.
Thread 3 (process 5805):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7ec97a2 in sem_post@GLIBC_2.0 ()
   from /lib/tls/i686/cmov/libpthread.so.0
#2  0x08145de8 in ?? ()
#3  0x08239924 in ?? ()
#4  0x00000000 in ?? ()
.
Thread 2 (process 5869):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7ec75c6 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/tls/i686/cmov/libpthread.so.0
#2  0x0811c14a in ?? ()
#3  0xb78ed53c in ?? ()
#4  0xb78ed524 in ?? ()
#5  0xb6042fe8 in ?? ()
#6  0x00000000 in ?? ()
.
Thread 1 (process 5804):
#0  0x08140038 in ?? ()
#1  0x00000000 in ?? ()