. Thread 3 (process 8171): #0 0xb7f3ccdc in ?? () from /usr/lib/libglib-2.0.so.0 #1 0x0000002c in ?? () #2 0x08251220 in ?? () #3 0xbfb2586c in ?? () #4 0xb7f3d223 in g_hash_table_unref () from /usr/lib/libglib-2.0.so.0 #5 0xb7f3d283 in g_hash_table_destroy () from /usr/lib/libglib-2.0.so.0 #6 0x081002eb in mono_image_close () #7 0x080f9588 in mono_assembly_close () #8 0x080f953d in mono_assembly_close () #9 0x080fd69d in mono_domain_free () #10 0x081732bd in ?? () #11 0x00021ed8 in ?? () #12 0x00000001 in ?? () #13 0xbfb2598c in ?? () #14 0x080ece35 in mono_runtime_quit () Backtrace stopped: frame did not save the PC . Thread 2 (process 8191): #0 0xb7fd8410 in __kernel_vsyscall () #1 0xb7f0d986 in ?? () from /lib/tls/i686/cmov/libpthread.so.0 #2 0x0811700b in ?? () #3 0xb7a6b39c in ?? () #4 0x00000000 in ?? () . Thread 1 (process 8205): #0 0xb7f3d37f in g_hash_table_lookup () from /usr/lib/libglib-2.0.so.0 #1 0x080b6d13 in ?? () #2 0x08250fa0 in ?? () #3 0x081b321c in ?? () #4 0xb65b9be8 in ?? () #5 0x0816a574 in ?? () #6 0x00021ed8 in ?? () #7 0xb537dde8 in ?? () #8 0xb65b9c48 in ?? () #9 0x0816c109 in ?? () #10 0x081b321c in ?? () #11 0x00000000 in ?? ()