.
Thread 3 (process 13556):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7cdc37a in do_sigwait () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb7cdc41f in sigwait () from /lib/tls/i686/cmov/libpthread.so.0
#3  0x0808d04b in ?? ()
#4  0xb7cd446b in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#5  0xb7c5873e in clone () from /lib/tls/i686/cmov/libc.so.6
.
Thread 2 (process 13557):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7c4e647 in poll () from /lib/tls/i686/cmov/libc.so.6
#2  0x0808f394 in ?? ()
#3  0x0807b362 in ?? ()
#4  0x0807b678 in ?? ()
#5  0x080813f6 in ?? ()
#6  0x0808d140 in ?? ()
#7  0x0808d232 in ?? ()
#8  0xb7cd446b in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#9  0xb7c5873e in clone () from /lib/tls/i686/cmov/libc.so.6
.
Thread 1 (process 13555):
#0  0xb7d730e2 in std::_Rb_tree_increment () from /usr/lib/libstdc++.so.6
#1  0x08061910 in ?? ()
#2  0x080619fe in ?? ()
#3  0x08055b94 in ?? ()
#4  0x080580cf in ?? ()
#5  0x08081c3f in ?? ()
#6  0x0804dd91 in ?? ()
#7  0x0804e4bd in ?? ()
#8  0xb7b9b050 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#9  0x0804c0f1 in ?? ()