** (telepathy-stream-engine:12998): DEBUG: stream 1 (audio) prepare_transports: calling MediaStreamHandler::Ready OnRequestsignaling called, sending SignalingReady telepathy-stream-engine: tpp.c:63: __pthread_tpp_change_priority: Assertion `new_prio == -1 || (new_prio >= __sched_fifo_min_prio && new_prio <= __sched_fifo_max_prio)' failed. Program received signal SIGABRT, Aborted. [Switching to Thread -1353716848 (LWP 22746)] 0xffffe410 in __kernel_vsyscall () (gdb) (gdb) (gdb) bt #0 0xffffe410 in __kernel_vsyscall () #1 0xb7a54df0 in raise () from /lib/tls/i686/cmov/libc.so.6 #2 0xb7a56641 in abort () from /lib/tls/i686/cmov/libc.so.6 #3 0xb7a4e43b in __assert_fail () from /lib/tls/i686/cmov/libc.so.6 #4 0xb7e8e3b0 in __pthread_tpp_change_priority () from /lib/tls/i686/cmov/libpthread.so.0 #5 0xb7e8781b in pthread_mutex_lock () from /lib/tls/i686/cmov/libpthread.so.0 #6 0xb68ce84b in cricket::PostThread::Start (this=0x840af30) at ../../talk/base/criticalsection.h:93 #7 0xb68ce0cf in cricket::SignalThread::StartWork (this=0x840b800) at signalthread.cc:39 #8 0xb68051b7 in cricket::HttpPortAllocatorSession::GetPortConfigurations ( this=0x840acd0) at httpportallocator.cc:129 #9 0xb67f71d3 in cricket::BasicPortAllocatorSession::OnMessage ( this=0x840acd0, message=0xaf4fe390) at basicportallocator.cc:255 #10 0xb689fb87 in cricket::MessageQueue::Dispatch (this=0x82bc800, pmsg=0xaf4fe390) at messagequeue.cc:318 #11 0xb68a2a1c in cricket::Thread::Loop (this=0x82bc800, cmsLoop=-1) at thread.cc:160 #12 0xb68a2ba2 in cricket::Thread::PreLoop (pv=0x82bc800) at thread.cc:145 #13 0xb7e8531b in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #14 0xb7afa50e in clone () from /lib/tls/i686/cmov/libc.so.6