#0  __libc_do_syscall () at ../sysdeps/unix/sysv/linux/arm/libc-do-syscall.S:46
No locals.
#1  0xb6d8795c in __lll_lock_wait (futex=futex@entry=0x6402fc, private=0) at lowlevellock.c:46
        _a2 = 128
        _nametmp = 240
        _a3tmp = 2
        _a3 = 2
        _a1 = 6554364
        _a4tmp = 0
        _a1tmp = 6554364
        _a4 = 0
        _name = 240
#2  0xb6d8319e in __GI___pthread_mutex_lock (mutex=0x6402fc) at pthread_mutex_lock.c:80
        __futex = 0x6402fc
        __PRETTY_FUNCTION__ = "__pthread_mutex_lock"
        type = <optimized out>
        id = <optimized out>
#3  0x00047b78 in __gthread_mutex_lock (__mutex=0x6402fc) at /usr/include/arm-linux-gnueabihf/c++/4.9/bits/gthr-default.h:748
No locals.
#4  lock (this=0x6402fc) at /usr/include/c++/4.9/mutex:135
No locals.
#5  lock (this=<optimized out>) at /usr/include/c++/4.9/mutex:474
No locals.
#6  unique_lock (__m=..., this=<optimized out>) at /usr/include/c++/4.9/mutex:406
No locals.
#7  usc::MirScreen::LockableCallback::lock (this=0x63d284) at /build/unity-system-compositor-IWfSVc/unity-system-compositor-0.4.1+15.04.20160203/src/mir_screen.cpp:63
No locals.
#8  0xb6e74af4 in lock_guard (__m=..., this=<synthetic pointer>) at /usr/include/c++/4.9/mutex:377
No locals.
#9  mir::detail::TimerGSource::dispatch (source=0xad4022d8) at /build/mir-15FH6p/mir-0.19.1+15.04.20160204/src/server/glib_main_loop_sources.cpp:311
        handler_lock = {_M_device = @0x63dafc}
        lock = <optimized out>
        ctx = @0xad402310: {clock = std::shared_ptr (count 11, weak 1) 0x5eab14, handler = std::shared_ptr (count 2, weak 0) 0x63dafc, exception_handler = {<std::_Maybe_unary_or_binary_function<void>> = {<No data fields>}, <std::_Function_base> = {static _M_max_size = 8, static _M_max_align = 4, _M_functor = {_M_unused = {_M_object = 0xad400fe0, _M_const_object = 0xad400fe0, _M_function_pointer = 0xad400fe0, _M_member_pointer = (void (std::_Undefined_class::*)(std::_Undefined_class * const)) 0xad400fe0}, _M_pod_data = "\340\017@\255\000\000\000"}, _M_manager = 0xb6e71459 <std::_Function_base::_Base_manager<mir::GLibMainLoop::create_alarm(const std::shared_ptr<mir::LockableCallback>&)::<lambda()> >::_M_manager(std::_Any_data &, const std::_Any_data &, std::_Manager_operation)>}, _M_invoker = 0xb6e72029 <std::_Function_handler<void(), mir::GLibMainLoop::create_alarm(const std::shared_ptr<mir::LockableCallback>&)::<lambda()> >::_M_invoke(const std::_Any_data &)>}, target_time = {__d = {__r = 20597126446606}}, mutex = {<std::__recursive_mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __kind = 1, __nusers = 0, {__spins = 0, __list = {__next = 0x0}}}, __size = '\000' <repeats 12 times>, "\001\000\000\000\000\000\000\000\000\000\000", __align = 0}}, <No data fields>}, enabled = true}
#10 0xb69f6f68 in g_main_dispatch (context=0x5e8658) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3122
        dispatch = 0xb6e74ae1 <mir::detail::TimerGSource::dispatch(GSource*, GSourceFunc, gpointer)>
        prev_source = 0x0
        was_in_call = 0
        user_data = 0x0
        callback = 0x0
        cb_funcs = <optimized out>
        cb_data = 0x0
        need_destroy = <optimized out>
        source = 0xad4022d8
        current = 0x5eb0a8
        i = 0
#11 g_main_context_dispatch (context=context@entry=0x5e8658) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3737
No locals.
#12 0xb69f7114 in g_main_context_iterate (context=context@entry=0x5e8658, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3808
        max_priority = 2147483647
        timeout = 0
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = <optimized out>
        fds = 0x63e338
#13 0xb69f7194 in g_main_context_iteration (context=0x5e8658, may_block=1) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3869
        retval = <optimized out>
#14 0xb6e722a8 in mir::GLibMainLoop::run (this=0x5ed4b0) at /build/mir-15FH6p/mir-0.19.1+15.04.20160204/src/server/glib_main_loop.cpp:145
No locals.
#15 0xb6e6ca24 in mir::DisplayServer::run (this=this@entry=0xbeb78b88) at /build/mir-15FH6p/mir-0.19.1+15.04.20160204/src/server/display_server.cpp:200
No locals.
#16 0xb6e6a064 in mir::run_mir(mir::ServerConfiguration&, std::function<void (mir::DisplayServer&)>, std::function<void (int)> const&) (config=..., init=..., terminator=...) at /build/mir-15FH6p/mir-0.19.1+15.04.20160204/src/server/run_mir.cpp:110
        server_ptr = 0xbeb78b88
        main_loop = std::shared_ptr (count 9, weak 1) 0x5ed4b0
        fatal_error_strategy = {old_fatal_error_handler = 0xb6e1f5cd <mir::fatal_error_except(char const*, ...)>}
        server = {p = {_M_b = {_M_p = 0x5eaf10}}}
        concurrent_calls = {<std::__atomic_base<unsigned int>> = {_M_i = 1}, <No data fields>}
        raii = {deleter = {<No data fields>}, owner = true}
#17 0xb6e7c146 in mir::Server::run (this=0x5e4238) at /build/mir-15FH6p/mir-0.19.1+15.04.20160204/src/server/server.cpp:393
        emergency_cleanup = std::shared_ptr (count 2, weak 1) 0x5eaedc
#18 0x00038b82 in usc::SystemCompositor::run (this=this@entry=0xbeb78c64) at /build/unity-system-compositor-IWfSVc/unity-system-compositor-0.4.1+15.04.20160203/src/system_compositor.cpp:131
No locals.
#19 0x0002e068 in main (argc=11, argv=0xbeb78e14) at /build/unity-system-compositor-IWfSVc/unity-system-compositor-0.4.1+15.04.20160203/src/main.cpp:32
        config = std::shared_ptr (count 2, weak 0) 0x5e4234
        system_compositor = {server = std::shared_ptr (count 2, weak 0) 0x5e4234, dm_connection = std::shared_ptr (count 1, weak 1) 0x63cf44, spinner = std::shared_ptr (count 2, weak 1) 0x5e877c, screen = std::shared_ptr (count 3, weak 1) 0x6402c0, screen_event_handler = std::shared_ptr (count 1, weak 2) 0x640b10, unity_screen_service = std::shared_ptr (count 1, weak 1) 0x640ec4, unity_input_service = std::shared_ptr (count 1, weak 1) 0x64149c, dbus_service_thread = std::shared_ptr (count 1, weak 1) 0x641214}