. Thread 3 (process 6627): #0 0x00002acbdcc89987 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0 #1 0x00000000004e80c2 in ?? () #2 0x00000000004e8405 in ?? () #3 0x00000000004f910b in ?? () #4 0x000000000049a89a in ?? () #5 0x00000000004bbeca in mono_runtime_cleanup () #6 0x0000000000542365 in ?? () #7 0x0000000000418059 in mono_main () #8 0x0000000000415643 in ?? () #9 0x00002acbdd13a8e4 in __libc_start_main () from /lib/libc.so.6 #10 0x0000000000415599 in ?? () #11 0x00007fffceafb498 in ?? () #12 0x0000000000000000 in ?? () . Thread 2 (process 6628): #0 0x00002acbdcc8c881 in ?? () from /lib/libpthread.so.0 #1 0x00000000004e3052 in ?? () #2 0x00002acbdcc852a5 in start_thread () from /lib/libpthread.so.0 #3 0x00002acbdd1ec5dd in clone () from /lib/libc.so.6 #4 0x0000000000000000 in ?? () . Thread 1 (process 6629): #0 0x00000000005606c5 in ?? () #1 0x0000000000561315 in ?? () #2 0x0000000000465351 in ?? () #3 0x0000000000540fb2 in ?? () #4 #5 0x000000000055fd33 in ?? () #6 0x000000000055fd69 in ?? () #7 0x0000000000561435 in ?? () #8 0x000000000054100a in ?? () #9 #10 0x00002acbdd14dcab in raise () from /lib/libc.so.6 #11 0x00002acbdd14f660 in abort () from /lib/libc.so.6 #12 0x00002acbdd18567b in ?? () from /lib/libc.so.6 #13 0x00002acbdd18575a in __libc_fatal () from /lib/libc.so.6 #14 0x00002acbdcc8d95a in pthread_cancel_init () from /lib/libpthread.so.0 #15 0x00002acbdcc8d9e0 in _Unwind_ForcedUnwind () from /lib/libpthread.so.0 #16 0x00002acbdcc8b8b0 in __pthread_unwind () from /lib/libpthread.so.0 #17 0x00002acbdcc86495 in pthread_exit () from /lib/libpthread.so.0 #18 0x00000000004f73df in ?? () #19 0x00000000004f7630 in ?? () #20 0x0000000000513857 in ?? () #21 0x00002acbdcc852a5 in start_thread () from /lib/libpthread.so.0 #22 0x00002acbdd1ec5dd in clone () from /lib/libc.so.6 #23 0x0000000000000000 in ?? ()