#0  0x00007f8b1c131117 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
        resultvar = 0
        pid = 1200
        selftid = 1200
#1  0x00007f8b1c132808 in __GI_abort () at abort.c:89
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x7fffcd3b3f62, sa_sigaction = 0x7fffcd3b3f62}, sa_mask = {__val = {140235449531782, 140235478423008, 136, 4294967295, 140235448170787, 4294967296, 140736636590352, 10286352, 140235477469390, 140234842970424, 0, 0, 0, 21474836480, 140235483213824, 140235449546928}}, sa_flags = 501241640, sa_restorer = 0x7f8b1de05a40 <mir::compositor::BufferQueue::BufferQueue(int, std::shared_ptr<mir::graphics::GraphicBufferAllocator> const&, mir::graphics::BufferProperties const&, mir::compositor::FrameDroppingPolicyFactory const&)::{lambda()#1}::operator()() const::__PRETTY_FUNCTION__>}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007f8b1c129fc6 in __assert_fail_base (fmt=0x7f8b1c27b8b0 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x7f8b1de05728 "!pending_client_notifications.empty()", file=file@entry=0x7f8b1de055e0 "/build/buildd/mir-0.3.0+14.10.20140618.1/src/server/compositor/buffer_queue.cpp", line=line@entry=136, function=function@entry=0x7f8b1de05a40 <mir::compositor::BufferQueue::BufferQueue(int, std::shared_ptr<mir::graphics::GraphicBufferAllocator> const&, mir::graphics::BufferProperties const&, mir::compositor::FrameDroppingPolicyFactory const&)::{lambda()#1}::operator()() const::__PRETTY_FUNCTION__> "mir::compositor::BufferQueue::BufferQueue(int, const std::shared_ptr<mir::graphics::GraphicBufferAllocator>&, const mir::graphics::BufferProperties&, const mir::compositor::FrameDroppingPolicyFactory&"...) at assert.c:92
        str = 0xc06820 "\240\305\275"
        total = 4096
#3  0x00007f8b1c12a072 in __GI___assert_fail (assertion=0x7f8b1de05728 "!pending_client_notifications.empty()", file=0x7f8b1de055e0 "/build/buildd/mir-0.3.0+14.10.20140618.1/src/server/compositor/buffer_queue.cpp", line=136, function=0x7f8b1de05a40 <mir::compositor::BufferQueue::BufferQueue(int, std::shared_ptr<mir::graphics::GraphicBufferAllocator> const&, mir::graphics::BufferProperties const&, mir::compositor::FrameDroppingPolicyFactory const&)::{lambda()#1}::operator()() const::__PRETTY_FUNCTION__> "mir::compositor::BufferQueue::BufferQueue(int, const std::shared_ptr<mir::graphics::GraphicBufferAllocator>&, const mir::graphics::BufferProperties&, const mir::compositor::FrameDroppingPolicyFactory&"...) at assert.c:101
No locals.
#4  0x00007f8b1dd3fb85 in operator() (__closure=0x7f8af8001a60) at /build/buildd/mir-0.3.0+14.10.20140618.1/src/server/compositor/buffer_queue.cpp:136
        lock = {_M_device = 0x7f8af8003090, _M_owns = true}
        this = 0x7f8af8003088
#5  std::_Function_handler<void(), mir::compositor::BufferQueue::BufferQueue(int, const std::shared_ptr<mir::graphics::GraphicBufferAllocator>&, const mir::graphics::BufferProperties&, const mir::compositor::FrameDroppingPolicyFactory&)::__lambda0>::_M_invoke(const std::_Any_data &) (__functor=...) at /usr/include/c++/4.8/functional:2071
No locals.
#6  0x00007f8b1dd3e03c in operator() (this=0x7f8af8003a58) at /usr/include/c++/4.8/functional:2471
No locals.
#7  operator() (__closure=0x7f8af8003a50) at /build/buildd/mir-0.3.0+14.10.20140618.1/src/server/compositor/timeout_frame_dropping_policy_factory.cpp:57
        drop_frame = {<std::_Maybe_unary_or_binary_function<void>> = {<No data fields>}, <std::_Function_base> = {static _M_max_size = 16, static _M_max_align = 8, _M_functor = {_M_unused = {_M_object = 0x7f8af8001a60, _M_const_object = 0x7f8af8001a60, _M_function_pointer = 0x7f8af8001a60, _M_member_pointer = (void (std::_Undefined_class::*)(std::_Undefined_class * const)) 0x7f8af8001a60}, _M_pod_data = "`\032\000\370\212\177\000\000\000\000\000\000\000\000\000"}, _M_manager = 0x7f8b1dd3e650 <std::_Function_base::_Base_manager<mir::compositor::BufferQueue::BufferQueue(int, const std::shared_ptr<mir::graphics::GraphicBufferAllocator>&, const mir::graphics::BufferProperties&, const mir::compositor::FrameDroppingPolicyFactory&)::__lambda0>::_M_manager(std::_Any_data &, const std::_Any_data &, std::_Manager_operation)>}, _M_invoker = 0x7f8b1dd3fa90 <std::_Function_handler<void(), mir::compositor::BufferQueue::BufferQueue(int, const std::shared_ptr<mir::graphics::GraphicBufferAllocator>&, const mir::graphics::BufferProperties&, const mir::compositor::FrameDroppingPolicyFactory&)::__lambda0>::_M_invoke(const std::_Any_data &)>}
        this = 0x7f8af80038c0
#8  std::_Function_handler<void(), (anonymous namespace)::TimeoutFrameDroppingPolicy::TimeoutFrameDroppingPolicy(const std::shared_ptr<mir::time::Timer>&, std::chrono::milliseconds, std::function<void()>)::__lambda0>::_M_invoke(const std::_Any_data &) (__functor=...) at /usr/include/c++/4.8/functional:2071
No locals.
#9  0x00007f8b1dd1cad8 in operator() (ec=..., __closure=0x7fffcd3b1ae0) at /build/buildd/mir-0.3.0+14.10.20140618.1/src/server/asio_main_loop.cpp:357
        data = {<std::__shared_ptr<(anonymous namespace)::AlarmImpl::InternalState, (__gnu_cxx::_Lock_policy)2>> = {_M_ptr = 0x7f8af80039c8, _M_refcount = {_M_pi = 0x7f8af80039b0}}, <No data fields>}
        lock = {_M_device = 0x7f8af80039c8, _M_owns = false}
        possible_data = {<std::__weak_ptr<(anonymous namespace)::AlarmImpl::InternalState, (__gnu_cxx::_Lock_policy)2>> = {_M_ptr = 0x7f8af80039c8, _M_refcount = {_M_pi = 0x7f8af80039b0}}, <No data fields>}
#10 operator() (this=0x7fffcd3b1ae0) at /usr/include/boost/asio/detail/bind_handler.hpp:47
No locals.
#11 asio_handler_invoke<boost::asio::detail::binder1<(anonymous namespace)::AlarmImpl::update_timer()::__lambda0, boost::system::error_code> > (function=...) at /usr/include/boost/asio/handler_invoke_hook.hpp:69
No locals.
#12 invoke<boost::asio::detail::binder1<(anonymous namespace)::AlarmImpl::update_timer()::__lambda0, boost::system::error_code>, (anonymous namespace)::AlarmImpl::update_timer()::__lambda0> (context=..., function=...) at /usr/include/boost/asio/detail/handler_invoke_helpers.hpp:37
No locals.
#13 boost::asio::detail::wait_handler<(anonymous namespace)::AlarmImpl::update_timer()::__lambda0>::do_complete(boost::asio::detail::io_service_impl *, boost::asio::detail::operation *, const boost::system::error_code &, std::size_t) (owner=<optimized out>, base=<optimized out>) at /usr/include/boost/asio/detail/wait_handler.hpp:70
        h = <optimized out>
        p = {h = 0x7fffcd3b1ae0, v = 0x0, p = 0x0}
        handler = {handler_ = {__possible_data = {<std::__weak_ptr<(anonymous namespace)::AlarmImpl::InternalState, (__gnu_cxx::_Lock_policy)2>> = {_M_ptr = 0x7f8af80039c8, _M_refcount = {_M_pi = 0x7f8af80039b0}}, <No data fields>}}, arg1_ = {m_val = 0, m_cat = 0x7f8b1da010d0}}
#14 0x00007f8b1dd2332f in complete (bytes_transferred=<optimized out>, ec=..., owner=..., this=0x7f8af40054a0) at /usr/include/boost/asio/detail/task_io_service_operation.hpp:38
No locals.
#15 do_run_one (ec=..., this_thread=..., lock=..., this=0x9cef70) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:384
        task_result = <optimized out>
        on_exit = {task_io_service_ = 0x9cef70, lock_ = 0x7fffcd3b1b70, this_thread_ = 0x7fffcd3b1bf0}
        o = 0x7f8af40054a0
        more_handlers = true
#16 boost::asio::detail::task_io_service::run (this=0x9cef70, ec=...) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:153
        this_thread = {<boost::asio::detail::thread_info_base> = {<boost::asio::detail::noncopyable> = {<No data fields>}, reusable_memory_ = 0x7f8af8000fa0}, wakeup_event = 0x7fffcd3b1c20, private_op_queue = {<boost::asio::detail::noncopyable> = {<No data fields>}, front_ = 0x0, back_ = 0x0}, private_outstanding_work = 0, next = 0x0}
        wakeup_event = {<boost::asio::detail::noncopyable> = {<No data fields>}, cond_ = {__data = {__lock = 0, __futex = 0, __total_seq = 0, __wakeup_seq = 0, __woken_seq = 0, __mutex = 0x0, __nwaiters = 0, __broadcast_seq = 0}, __size = '\000' <repeats 47 times>, __align = 0}, signalled_ = false}
        ctx = {<boost::asio::detail::noncopyable> = {<No data fields>}, key_ = 0x9cef70, value_ = 0x7fffcd3b1bf0, next_ = 0x0}
        lock = {<boost::asio::detail::noncopyable> = {<No data fields>}, mutex_ = @0x9cefa0, locked_ = false}
        n = 134979
#17 0x00007f8b1dd1c5c6 in run (this=0x9cee60) at /usr/include/boost/asio/impl/io_service.ipp:59
        ec = {m_val = 0, m_cat = 0x7f8b1da010d0}
#18 mir::AsioMainLoop::run (this=0x9cee48) at /build/buildd/mir-0.3.0+14.10.20140618.1/src/server/asio_main_loop.cpp:201
No locals.
#19 0x00007f8b1dd13236 in mir::DisplayServer::run (this=this@entry=0x7fffcd3b1cf0) at /build/buildd/mir-0.3.0+14.10.20140618.1/src/server/display_server.cpp:212
No locals.
#20 0x00007f8b1dd10788 in mir::run_mir(mir::ServerConfiguration&, std::function<void (mir::DisplayServer&)>) (config=..., init=...) at /build/buildd/mir-0.3.0+14.10.20140618.1/src/server/run_mir.cpp:90
        server_ptr = 0x7fffcd3b1cf0
        main_loop = {<std::__shared_ptr<mir::MainLoop, (__gnu_cxx::_Lock_policy)2>> = {_M_ptr = 0x9cee48, _M_refcount = {_M_pi = 0x9cee30}}, <No data fields>}
        server = {p = {_M_t = {<std::_Tuple_impl<0ul, mir::DisplayServer::Private*, std::default_delete<mir::DisplayServer::Private> >> = {<std::_Tuple_impl<1ul, std::default_delete<mir::DisplayServer::Private> >> = {<std::_Tuple_impl<2ul>> = {<No data fields>}, <std::_Head_base<1ul, std::default_delete<mir::DisplayServer::Private>, true>> = {<std::default_delete<mir::DisplayServer::Private>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0ul, mir::DisplayServer::Private*, false>> = {_M_head_impl = 0x9cf6d0}, <No data fields>}, <No data fields>}}}
        raii = {deleter = {<No data fields>}, owner = true}
        lock = <optimized out>
#21 0x00000000004325ee in SystemCompositor::run (this=this@entry=0x7fffcd3b1e90, argc=argc@entry=9, argv=argv@entry=0x7fffcd3b2008) at /build/buildd/unity-system-compositor-0.0.4+14.10.20140625/src/system_compositor.cpp:753
        options = {<std::__shared_ptr<SystemCompositorConfigurationOptions, (__gnu_cxx::_Lock_policy)2>> = {_M_ptr = <optimized out>, _M_refcount = {_M_pi = 0x9bd9e0}}, <No data fields>}
        guard = {io_service = @0x7fffcd3b1eb8, io_thread = {_M_id = {_M_thread = 140235178505984}}, qt_thread = {_M_id = {_M_thread = 140235170113280}}}
#22 0x00000000004272f5 in main (argc=9, argv=0x7fffcd3b2008) at /build/buildd/unity-system-compositor-0.0.4+14.10.20140625/src/main.cpp:27
        system_compositor = {<DMMessageHandler> = {_vptr.DMMessageHandler = 0x651310 <vtable for SystemCompositor+16>}, config = {<std::__shared_ptr<SystemCompositorServerConfiguration, (__gnu_cxx::_Lock_policy)2>> = {_M_ptr = 0x9c9d78, _M_refcount = {_M_pi = 0x9c9d60}}, <No data fields>}, shell = {<std::__shared_ptr<SystemCompositorShell, (__gnu_cxx::_Lock_policy)2>> = {_M_ptr = 0xb7cb58, _M_refcount = {_M_pi = 0xb7cb40}}, <No data fields>}, io_service = {<boost::asio::detail::noncopyable> = {<No data fields>}, service_registry_ = 0x9c49a0, impl_ = @0x9c2c80}, dm_connection = {<std::__shared_ptr<DMConnection, (__gnu_cxx::_Lock_policy)2>> = {_M_ptr = 0x9cead8, _M_refcount = {_M_pi = 0x9ceac0}}, <No data fields>}, screen_state_handler = {<std::__shared_ptr<ScreenStateHandler, (__gnu_cxx::_Lock_policy)2>> = {_M_ptr = 0x7f8aec0041f8, _M_refcount = {_M_pi = 0x7f8aec0041e0}}, <No data fields>}, power_key_handler = {<std::__shared_ptr<PowerKeyHandler, (__gnu_cxx::_Lock_policy)2>> = {_M_ptr = 0x7f8aec015168, _M_refcount = {_M_pi = 0x7f8aec015150}}, <No data fields>}, spinner_process = <incomplete type>}