(gdb) bt #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x00007f9d69721343 in base::ConditionVariable::TimedWait (this=0x7fffdb12b308, max_time=…) at ../../base/synchronization/condition_variable_posix.cc:102 #2 0x00007f9d696fde2c in base::WaitableEvent::TimedWait (this=0x7f9d705c0540, max_time=…) at ../../base/synchronization/waitable_event_posix.cc:214 #3 0x00007f9d696dcc16 in base::MessagePumpDefault::Run (this=0x7f9d705c0530, delegate=0x7fffdb12b570) at ../../base/message_loop/message_pump_default.cc:56 #4 0x00007f9d696edc51 in base::RunLoop::Run (this=0x7fffdb12b3e0) at ../../base/run_loop.cc:49 #5 0x00007f9d696da157 in base::MessageLoop::Run (this=) at ../../base/message_loop/message_loop.cc:308 #6 0x00007f9d6c310ffc in content::RendererMain (parameters=…) at ../../content/renderer/renderer_main.cc:227 #7 0x00007f9d696a31de in …