. Thread 4 (process 7252): #0 0xb7f0cd63 in ?? () from /lib/ld-linux.so.2 #1 0xb7f0d103 in ?? () from /lib/ld-linux.so.2 #2 0xb7f10e52 in ?? () from /lib/ld-linux.so.2 #3 0xb7f16300 in ?? () from /lib/ld-linux.so.2 #4 0xb2d71a95 in ?? () from /usr/lib/libdbus-1.so.3 #5 0x08db9d48 in ?? () #6 0x00000000 in ?? () . Thread 3 (process 7273): #0 0xffffe410 in __kernel_vsyscall () #1 0xb6621e66 in nanosleep () from /lib/tls/i686/cmov/libc.so.6 #2 0xb665ac3c in usleep () from /lib/tls/i686/cmov/libc.so.6 #3 0xb7d2ce2e in net::SocketMonitor::update () from /usr/lib/libktorrent-2.1.so #4 0xb7d2d72b in net::MonitorThread::run () from /usr/lib/libktorrent-2.1.so #5 0xb6d85fd9 in QThreadInstance::start () from /usr/lib/libqt-mt.so.3 #6 0xb681d31b in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #7 0xb666157e in clone () from /lib/tls/i686/cmov/libc.so.6 . Thread 2 (process 7409): #0 0xffffe410 in __kernel_vsyscall () #1 0xb6657893 in poll () from /lib/tls/i686/cmov/libc.so.6 #2 0xb5f92f4e in ?? () from /usr/lib/libavahi-common.so.3 #3 0x08da2d28 in ?? () #4 0x00000002 in ?? () #5 0xffffffff in ?? () #6 0xb5f95c9c in ?? () from /usr/lib/libavahi-common.so.3 #7 0x08dbe008 in ?? () #8 0x08dbe008 in ?? () #9 0xb228e2c8 in ?? () #10 0xb5f918b3 in avahi_simple_poll_run () from /usr/lib/libavahi-common.so.3 Backtrace stopped: frame did not save the PC . Thread 1 (process 7408): #0 0xb2d7fe13 in ?? () from /usr/lib/libdbus-1.so.3 #1 0x08500b60 in ?? () #2 0x00000004 in ?? () #3 0x00000004 in ?? () #4 0x00000000 in ?? ()