.
Thread 3 (process 6567):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7eaa986 in ?? () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x0811700b in ?? ()
#3  0xb798f39c in ?? ()
#4  0x00000000 in ?? ()
.
Thread 2 (process 6570):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7ea75c6 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/tls/i686/cmov/libpthread.so.0
#2  0x0811c14a in ?? ()
#3  0xb78f51dc in ?? ()
#4  0xb78f51c4 in ?? ()
#5  0xb741b178 in ?? ()
#6  0x00000000 in ?? ()
.
Thread 1 (process 6555):
#0  0x0808db27 in ?? ()
#1  0x00021ed8 in ?? ()
#2  0x0818e244 in mono_walk_stack ()
#3  0x0818dbcc in ?? ()
#4  0x00021ed8 in ?? ()
#5  0x08243020 in ?? ()
#6  0xbfdcbeb0 in ?? ()
#7  0x00000000 in ?? ()