Crashes in drmHandleEvent - possibly triggered by client submitting buffer too slowly?

Using mir 0.0.2 & Xmir, mir will rapidly die once compiz starts - ie: shortly after logging in from unity-greeter. Unity-greeter itself appears to work fine.

This occurs on both intel & radeon.

/var/log/lightdm/mir.log
[II, GBMDisplay] Successfully setup native resources.
[II, GBMDisplay] Successfully made egl context current on construction.
[II, GBMDisplay] Successfully performed egl buffer swap on construction.
[II, GBMDisplay] Successfully performed drm mode setup on construction.
[II, GBMDisplay] Successfully finished construction.
[EE, GBMDisplay] Timeout while waiting for page-flip

Ginormous evil backtrace:
Program received signal SIGSEGV, Segmentation fault.
std::_Hashtable<unsigned int, std::pair<unsigned int const, mir::graphics::gbm::PageFlipEventData>, std::allocator<std::pair<unsigned int const, mir::graphics::gbm::PageFlipEventData> >, std::_Select1st<std::pair<unsigned int const, mir::graphics::gbm::PageFlipEventData> >, std::equal_to<unsigned int>, std::hash<unsigned int>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, false, false, true>::erase (this=0x1c043f0, __k=@0x1bf9bd0: 4294967295)
    at /usr/include/c++/4.6/bits/hashtable.h:1097
1097 while (*__slot && !this->_M_compare(__k, __code, *__slot))
(gdb) bt
#0 std::_Hashtable<unsigned int, std::pair<unsigned int const, mir::graphics::gbm::PageFlipEventData>, std::allocator<std::pair<unsigned int const, mir::graphics::gbm::PageFlipEventData> >, std::_Select1st<std::pair<unsigned int const, mir::graphics::gbm::PageFlipEventData> >, std::equal_to<unsigned int>, std::hash<unsigned int>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, false, false, true>::erase (this=0x1c043f0,
    __k=@0x1bf9bd0: 4294967295) at /usr/include/c++/4.6/bits/hashtable.h:1097
#1 0x00007f732c8a2873 in drmHandleEvent (fd=3,
    evctx=0x7f732def7ad0 <mir::graphics::gbm::KMSPageFlipper::wait_for_flip(unsigned int)::evctx>) at ../xf86drmMode.c:811
#2 0x00007f732dcca107 in mir::graphics::gbm::KMSPageFlipper::wait_for_flip (
    this=0x1a28230, crtc_id=10)
    at /build/buildd/mir-0.0.2/src/graphics/gbm/kms_page_flipper.cpp:155
#3 0x00007f732dcc80e9 in mir::graphics::gbm::KMSOutput::wait_for_page_flip (
    this=<optimised out>)
    at /build/buildd/mir-0.0.2/src/graphics/gbm/kms_output.cpp:168
#4 0x00007f732dcc61b4 in mir::graphics::gbm::GBMDisplayBuffer::schedule_and_wait_for_page_flip (this=0x1aa0770, bufobj=0x1b3b3d0)
    at /build/buildd/mir-0.0.2/src/graphics/gbm/gbm_display_buffer.cpp:263
#5 0x00007f732dcc622b in post_update (this=0x1aa0770)
    at /build/buildd/mir-0.0.2/src/graphics/gbm/gbm_display_buffer.cpp:191
#6 mir::graphics::gbm::GBMDisplayBuffer::post_update (this=0x1aa0770)
    at /build/buildd/mir-0.0.2/src/graphics/gbm/gbm_display_buffer.cpp:171
#7 0x00007f732dc9b795 in operator() (buffer=..., this=0x1b313b0)
    at /build/buildd/mir-0.0.2/src/compositor/compositor.cpp:74
#8 std::_Function_handler<void(mir::graphics::DisplayBuffer&), mir::compositor::Compositor::render(mir::graphics::Display*)::<lambda(mir::graphics::DisplayBuffer&)> >::_M_invoke(const std::_Any_data &, mir::graphics::DisplayBuffer &) (__functor=...,
    __args#0=...) at /usr/include/c++/4.6/functional:1778
#9 0x00007f732dcc180c in operator() (__args#0=..., this=0x7fff039c0300)
    at /usr/include/c++/4.6/functional:2161
#10 mir::graphics::gbm::GBMDisplay::for_each_display_buffer(std::function<void (mir::graphics::DisplayBuffer&)> const&) (this=<optimised out>, f=...)
    at /build/buildd/mir-0.0.2/src/graphics/gbm/gbm_display.cpp:63
#11 0x00007f732dc9b562 in mir::compositor::Compositor::render (this=0x1bf22c0,
    display=0x1a23110) at /build/buildd/mir-0.0.2/src/compositor/compositor.cpp:75
#12 0x00007f732dc8cf2d in mir::DisplayServer::start (this=0x7fff039c0510)
    at /build/buildd/mir-0.0.2/src/display_server.cpp:103
#13 0x0000000000406964 in run_mir (socket_file="/tmp/mir_socket")
    at /build/buildd/mir-0.0.2/src/main.cpp:63
#14 main (argc=3, argv=0x7fff039c0618) at /build/buildd/mir-0.0.2/src/main.cpp:96

(gdb) thread apply all bt

Thread 12 (Thread 0x7f73280b8700 (LWP 10227)):
#0 pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f73289dca3b in pipe_semaphore_wait (sema=0x1a1c310)
    at ../../../../../../../src/gallium/auxiliary/os/os_thread.h:433
#2 radeon_drm_cs_emit_ioctl (param=0x1a1c130) at radeon_drm_winsys.c:518
#3 0x00007f732da19f8e in start_thread (arg=0x7f73280b8700) at pthread_create.c:311
#4 0x00007f732cfcae1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 11 (Thread 0x7f7324ca2700 (LWP 10228)):
#0 pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f732dcb0e9b in wait<boost::asio::detail::scoped_lock<boost::asio::detail::posix_mutex> > (lock=..., this=0x7f7324ca1db0)
    at /usr/include/boost/asio/detail/posix_event.hpp:80
#2 do_run_one (ec=..., private_op_queue=..., this_thread=..., lock=...,
    this=<optimised out>)
    at /usr/include/boost/asio/detail/impl/task_io_service.ipp:380
#3 boost::asio::detail::task_io_service::run (this=0x1c03600, ec=...)
    at /usr/include/boost/asio/detail/impl/task_io_service.ipp:146
#4 0x00007f732dcb1375 in boost::asio::io_service::run (this=0x1b34220)
    at /usr/include/boost/asio/impl/io_service.ipp:59
#5 0x00007f732d5619f0 in std::(anonymous namespace)::execute_native_thread_routine
    (__p=<optimised out>) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:74
#6 0x00007f732da19f8e in start_thread (arg=0x7f7324ca2700) at pthread_create.c:311
#7 0x00007f732cfcae1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 10 (Thread 0x7f73244a1700 (LWP 10229)):
#0 pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f732dcb0e9b in wait<boost::asio::detail::scoped_lock<boost::asio::detail::posix_mutex> > (lock=..., this=0x7f73244a0db0)
    at /usr/include/boost/asio/detail/posix_event.hpp:80
#2 do_run_one (ec=..., private_op_queue=..., this_thread=..., lock=...,
    this=<optimised out>)
    at /usr/include/boost/asio/detail/impl/task_io_service.ipp:380
#3 boost::asio::detail::task_io_service::run (this=0x1c03600, ec=...)
    at /usr/include/boost/asio/detail/impl/task_io_service.ipp:146
#4 0x00007f732dcb1375 in boost::asio::io_service::run (this=0x1b34220)
    at /usr/include/boost/asio/impl/io_service.ipp:59
#5 0x00007f732d5619f0 in std::(anonymous namespace)::execute_native_thread_routine
---Type <return> to continue, or q <return> to quit---q
 (Quit
(gdb) set pagination 0
(gdb) thread apply all bt full

Thread 12 (Thread 0x7f73280b8700 (LWP 10227)):
#0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1 0x00007f73289dca3b in pipe_semaphore_wait (sema=0x1a1c310) at ../../../../../../../src/gallium/auxiliary/os/os_thread.h:433
No locals.
#2 radeon_drm_cs_emit_ioctl (param=0x1a1c130) at radeon_drm_winsys.c:518
        ws = 0x1a1c130
        cs = <optimised out>
        i = <optimised out>
        empty_stack = <optimised out>
#3 0x00007f732da19f8e in start_thread (arg=0x7f73280b8700) at pthread_create.c:311
        __res = <optimised out>
        pd = 0x7f73280b8700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140132569810688, 5423417445248852111, 0, 140132670877792, 140132663572288, 4096, -5357725031447732081, -5357733049048440689}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#4 0x00007f732cfcae1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.

Thread 11 (Thread 0x7f7324ca2700 (LWP 10228)):
#0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1 0x00007f732dcb0e9b in wait<boost::asio::detail::scoped_lock<boost::asio::detail::posix_mutex> > (lock=..., this=0x7f7324ca1db0) at /usr/include/boost/asio/detail/posix_event.hpp:80
No locals.
#2 do_run_one (ec=..., private_op_queue=..., this_thread=..., lock=..., this=<optimised out>) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:380
No locals.
#3 boost::asio::detail::task_io_service::run (this=0x1c03600, ec=...) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:146
        this_thread = {wakeup_event = 0x7f7324ca1db0, private_op_queue = 0x0, next = 0x7f7320498ce0}
        wakeup_event = {<boost::noncopyable_::noncopyable> = {<No data fields>}, cond_ = {__data = {__lock = 0, __futex = 309, __total_seq = 155, __wakeup_seq = 154, __woken_seq = 154, __mutex = 0x1c03630, __nwaiters = 2, __broadcast_seq = 0}, __size = "\000\000\000\000\065\001\000\000\233\000\000\000\000\000\000\000\232\000\000\000\000\000\000\000\232\000\000\000\000\000\000\000\060\066\300\001\000\000\000\000\002\000\000\000\000\000\000", __align = 1327144894464}, signalled_ = false}
        ctx = {<boost::noncopyable_::noncopyable> = {<No data fields>}, key_ = 0x1c03600, value_ = 0x7f7324ca1ce0, next_ = 0x0}
        private_op_queue = {<boost::noncopyable_::noncopyable> = {<No data fields>}, front_ = 0x0, back_ = 0x0}
        lock = {<boost::noncopyable_::noncopyable> = {<No data fields>}, mutex_ = @0x1c03630, locked_ = true}
        n = <optimised out>
#4 0x00007f732dcb1375 in boost::asio::io_service::run (this=0x1b34220) at /usr/include/boost/asio/impl/io_service.ipp:59
        ec = {m_val = 0, m_cat = 0x7f732cca90d8}
        s = <optimised out>
#5 0x00007f732d5619f0 in std::(anonymous namespace)::execute_native_thread_routine (__p=<optimised out>) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:74
        __t = <optimised out>
#6 0x00007f732da19f8e in start_thread (arg=0x7f7324ca2700) at pthread_create.c:311
        __res = <optimised out>
        pd = 0x7f7324ca2700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140132515194624, 5423417445248852111, 0, 140132670877792, 140132663572288, 4096, -5357716775446847345, -5357733049048440689}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#7 0x00007f732cfcae1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.

Thread 10 (Thread 0x7f73244a1700 (LWP 10229)):
#0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1 0x00007f732dcb0e9b in wait<boost::asio::detail::scoped_lock<boost::asio::detail::posix_mutex> > (lock=..., this=0x7f73244a0db0) at /usr/include/boost/asio/detail/posix_event.hpp:80
No locals.
#2 do_run_one (ec=..., private_op_queue=..., this_thread=..., lock=..., this=<optimised out>) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:380
No locals.
#3 boost::asio::detail::task_io_service::run (this=0x1c03600, ec=...) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:146
        this_thread = {wakeup_event = 0x7f73244a0db0, private_op_queue = 0x0, next = 0x7f7321c9bce0}
        wakeup_event = {<boost::noncopyable_::noncopyable> = {<No data fields>}, cond_ = {__data = {__lock = 0, __futex = 1, __total_seq = 1, __wakeup_seq = 0, __woken_seq = 0, __mutex = 0x1c03630, __nwaiters = 2, __broadcast_seq = 0}, __size = "\000\000\000\000\001\000\000\000\001", '\000' <repeats 23 times>, "06\300\001\000\000\000\000\002\000\000\000\000\000\000", __align = 4294967296}, signalled_ = false}
        ctx = {<boost::noncopyable_::noncopyable> = {<No data fields>}, key_ = 0x1c03600, value_ = 0x7f73244a0ce0, next_ = 0x0}
        private_op_queue = {<boost::noncopyable_::noncopyable> = {<No data fields>}, front_ = 0x0, back_ = 0x0}
        lock = {<boost::noncopyable_::noncopyable> = {<No data fields>}, mutex_ = @0x1c03630, locked_ = true}
        n = <optimised out>
#4 0x00007f732dcb1375 in boost::asio::io_service::run (this=0x1b34220) at /usr/include/boost/asio/impl/io_service.ipp:59
        ec = {m_val = 0, m_cat = 0x7f732cca90d8}
        s = <optimised out>
#5 0x00007f732d5619f0 in std::(anonymous namespace)::execute_native_thread_routine (__p=<optimised out>) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:74
        __t = <optimised out>
#6 0x00007f732da19f8e in start_thread (arg=0x7f73244a1700) at pthread_create.c:311
        __res = <optimised out>
        pd = 0x7f73244a1700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140132506801920, 5423417445248852111, 0, 140132670877792, 140132663572288, 4096, -5357715676472090481, -5357733049048440689}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#7 0x00007f732cfcae1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.

Thread 9 (Thread 0x7f7323ca0700 (LWP 10230)):
#0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1 0x00007f732dcb0e9b in wait<boost::asio::detail::scoped_lock<boost::asio::detail::posix_mutex> > (lock=..., this=0x7f7323c9fdb0) at /usr/include/boost/asio/detail/posix_event.hpp:80
No locals.
#2 do_run_one (ec=..., private_op_queue=..., this_thread=..., lock=..., this=<optimised out>) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:380
No locals.
#3 boost::asio::detail::task_io_service::run (this=0x1c03600, ec=...) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:146
        this_thread = {wakeup_event = 0x7f7323c9fdb0, private_op_queue = 0x0, next = 0x7f73244a0ce0}
        wakeup_event = {<boost::noncopyable_::noncopyable> = {<No data fields>}, cond_ = {__data = {__lock = 0, __futex = 1, __total_seq = 1, __wakeup_seq = 0, __woken_seq = 0, __mutex = 0x1c03630, __nwaiters = 2, __broadcast_seq = 0}, __size = "\000\000\000\000\001\000\000\000\001", '\000' <repeats 23 times>, "06\300\001\000\000\000\000\002\000\000\000\000\000\000", __align = 4294967296}, signalled_ = false}
        ctx = {<boost::noncopyable_::noncopyable> = {<No data fields>}, key_ = 0x1c03600, value_ = 0x7f7323c9fce0, next_ = 0x0}
        private_op_queue = {<boost::noncopyable_::noncopyable> = {<No data fields>}, front_ = 0x0, back_ = 0x0}
        lock = {<boost::noncopyable_::noncopyable> = {<No data fields>}, mutex_ = @0x1c03630, locked_ = true}
        n = <optimised out>
#4 0x00007f732dcb1375 in boost::asio::io_service::run (this=0x1b34220) at /usr/include/boost/asio/impl/io_service.ipp:59
        ec = {m_val = 0, m_cat = 0x7f732cca90d8}
        s = <optimised out>
#5 0x00007f732d5619f0 in std::(anonymous namespace)::execute_native_thread_routine (__p=<optimised out>) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:74
        __t = <optimised out>
#6 0x00007f732da19f8e in start_thread (arg=0x7f7323ca0700) at pthread_create.c:311
        __res = <optimised out>
        pd = 0x7f7323ca0700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140132498409216, 5423417445248852111, 0, 140132670877792, 140132663572288, 4096, -5357701370472898417, -5357733049048440689}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#7 0x00007f732cfcae1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.

Thread 8 (Thread 0x7f732349f700 (LWP 10231)):
#0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1 0x00007f732dcb0e9b in wait<boost::asio::detail::scoped_lock<boost::asio::detail::posix_mutex> > (lock=..., this=0x7f732349edb0) at /usr/include/boost/asio/detail/posix_event.hpp:80
No locals.
#2 do_run_one (ec=..., private_op_queue=..., this_thread=..., lock=..., this=<optimised out>) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:380
No locals.
#3 boost::asio::detail::task_io_service::run (this=0x1c03600, ec=...) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:146
        this_thread = {wakeup_event = 0x7f732349edb0, private_op_queue = 0x0, next = 0x0}
        wakeup_event = {<boost::noncopyable_::noncopyable> = {<No data fields>}, cond_ = {__data = {__lock = 0, __futex = 1, __total_seq = 1, __wakeup_seq = 0, __woken_seq = 0, __mutex = 0x1c03630, __nwaiters = 2, __broadcast_seq = 0}, __size = "\000\000\000\000\001\000\000\000\001", '\000' <repeats 23 times>, "06\300\001\000\000\000\000\002\000\000\000\000\000\000", __align = 4294967296}, signalled_ = false}
        ctx = {<boost::noncopyable_::noncopyable> = {<No data fields>}, key_ = 0x1c03600, value_ = 0x7f732349ece0, next_ = 0x0}
        private_op_queue = {<boost::noncopyable_::noncopyable> = {<No data fields>}, front_ = 0x0, back_ = 0x0}
        lock = {<boost::noncopyable_::noncopyable> = {<No data fields>}, mutex_ = @0x1c03630, locked_ = true}
        n = <optimised out>
#4 0x00007f732dcb1375 in boost::asio::io_service::run (this=0x1b34220) at /usr/include/boost/asio/impl/io_service.ipp:59
        ec = {m_val = 0, m_cat = 0x7f732cca90d8}
        s = <optimised out>
#5 0x00007f732d5619f0 in std::(anonymous namespace)::execute_native_thread_routine (__p=<optimised out>) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:74
        __t = <optimised out>
#6 0x00007f732da19f8e in start_thread (arg=0x7f732349f700) at pthread_create.c:311
        __res = <optimised out>
        pd = 0x7f732349f700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140132490016512, 5423417445248852111, 0, 140132670877792, 140132663572288, 4096, -5357700271498141553, -5357733049048440689}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#7 0x00007f732cfcae1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.

Thread 7 (Thread 0x7f7322c9e700 (LWP 10232)):
#0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1 0x00007f732dcb0e9b in wait<boost::asio::detail::scoped_lock<boost::asio::detail::posix_mutex> > (lock=..., this=0x7f7322c9ddb0) at /usr/include/boost/asio/detail/posix_event.hpp:80
No locals.
#2 do_run_one (ec=..., private_op_queue=..., this_thread=..., lock=..., this=<optimised out>) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:380
No locals.
#3 boost::asio::detail::task_io_service::run (this=0x1c03600, ec=...) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:146
        this_thread = {wakeup_event = 0x7f7322c9ddb0, private_op_queue = 0x0, next = 0x7f732349ece0}
        wakeup_event = {<boost::noncopyable_::noncopyable> = {<No data fields>}, cond_ = {__data = {__lock = 0, __futex = 1, __total_seq = 1, __wakeup_seq = 0, __woken_seq = 0, __mutex = 0x1c03630, __nwaiters = 2, __broadcast_seq = 0}, __size = "\000\000\000\000\001\000\000\000\001", '\000' <repeats 23 times>, "06\300\001\000\000\000\000\002\000\000\000\000\000\000", __align = 4294967296}, signalled_ = false}
        ctx = {<boost::noncopyable_::noncopyable> = {<No data fields>}, key_ = 0x1c03600, value_ = 0x7f7322c9dce0, next_ = 0x0}
        private_op_queue = {<boost::noncopyable_::noncopyable> = {<No data fields>}, front_ = 0x0, back_ = 0x0}
        lock = {<boost::noncopyable_::noncopyable> = {<No data fields>}, mutex_ = @0x1c03630, locked_ = true}
        n = <optimised out>
#4 0x00007f732dcb1375 in boost::asio::io_service::run (this=0x1b34220) at /usr/include/boost/asio/impl/io_service.ipp:59
        ec = {m_val = 0, m_cat = 0x7f732cca90d8}
        s = <optimised out>
#5 0x00007f732d5619f0 in std::(anonymous namespace)::execute_native_thread_routine (__p=<optimised out>) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:74
        __t = <optimised out>
#6 0x00007f732da19f8e in start_thread (arg=0x7f7322c9e700) at pthread_create.c:311
        __res = <optimised out>
        pd = 0x7f7322c9e700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140132481623808, 5423417445248852111, 0, 140132670877792, 140132663572288, 4096, -5357703570569895793, -5357733049048440689}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#7 0x00007f732cfcae1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.

Thread 6 (Thread 0x7f732249d700 (LWP 10233)):
#0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1 0x00007f732dcb0e9b in wait<boost::asio::detail::scoped_lock<boost::asio::detail::posix_mutex> > (lock=..., this=0x7f732249cdb0) at /usr/include/boost/asio/detail/posix_event.hpp:80
No locals.
#2 do_run_one (ec=..., private_op_queue=..., this_thread=..., lock=..., this=<optimised out>) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:380
No locals.
#3 boost::asio::detail::task_io_service::run (this=0x1c03600, ec=...) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:146
        this_thread = {wakeup_event = 0x7f732249cdb0, private_op_queue = 0x0, next = 0x7f7323c9fce0}
        wakeup_event = {<boost::noncopyable_::noncopyable> = {<No data fields>}, cond_ = {__data = {__lock = 0, __futex = 1, __total_seq = 1, __wakeup_seq = 0, __woken_seq = 0, __mutex = 0x1c03630, __nwaiters = 2, __broadcast_seq = 0}, __size = "\000\000\000\000\001\000\000\000\001", '\000' <repeats 23 times>, "06\300\001\000\000\000\000\002\000\000\000\000\000\000", __align = 4294967296}, signalled_ = false}
        ctx = {<boost::noncopyable_::noncopyable> = {<No data fields>}, key_ = 0x1c03600, value_ = 0x7f732249cce0, next_ = 0x0}
        private_op_queue = {<boost::noncopyable_::noncopyable> = {<No data fields>}, front_ = 0x0, back_ = 0x0}
        lock = {<boost::noncopyable_::noncopyable> = {<No data fields>}, mutex_ = @0x1c03630, locked_ = true}
        n = <optimised out>
#4 0x00007f732dcb1375 in boost::asio::io_service::run (this=0x1b34220) at /usr/include/boost/asio/impl/io_service.ipp:59
        ec = {m_val = 0, m_cat = 0x7f732cca90d8}
        s = <optimised out>
#5 0x00007f732d5619f0 in std::(anonymous namespace)::execute_native_thread_routine (__p=<optimised out>) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:74
        __t = <optimised out>
#6 0x00007f732da19f8e in start_thread (arg=0x7f732249d700) at pthread_create.c:311
        __res = <optimised out>
        pd = 0x7f732249d700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140132473231104, 5423417445248852111, 0, 140132670877792, 140132663572288, 4096, -5357702471595138929, -5357733049048440689}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#7 0x00007f732cfcae1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.

Thread 5 (Thread 0x7f7321c9c700 (LWP 10234)):
#0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1 0x00007f732dcb0e9b in wait<boost::asio::detail::scoped_lock<boost::asio::detail::posix_mutex> > (lock=..., this=0x7f7321c9bdb0) at /usr/include/boost/asio/detail/posix_event.hpp:80
No locals.
#2 do_run_one (ec=..., private_op_queue=..., this_thread=..., lock=..., this=<optimised out>) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:380
No locals.
#3 boost::asio::detail::task_io_service::run (this=0x1c03600, ec=...) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:146
        this_thread = {wakeup_event = 0x7f7321c9bdb0, private_op_queue = 0x0, next = 0x7f7322c9dce0}
        wakeup_event = {<boost::noncopyable_::noncopyable> = {<No data fields>}, cond_ = {__data = {__lock = 0, __futex = 1, __total_seq = 1, __wakeup_seq = 0, __woken_seq = 0, __mutex = 0x1c03630, __nwaiters = 2, __broadcast_seq = 0}, __size = "\000\000\000\000\001\000\000\000\001", '\000' <repeats 23 times>, "06\300\001\000\000\000\000\002\000\000\000\000\000\000", __align = 4294967296}, signalled_ = false}
        ctx = {<boost::noncopyable_::noncopyable> = {<No data fields>}, key_ = 0x1c03600, value_ = 0x7f7321c9bce0, next_ = 0x0}
        private_op_queue = {<boost::noncopyable_::noncopyable> = {<No data fields>}, front_ = 0x0, back_ = 0x0}
        lock = {<boost::noncopyable_::noncopyable> = {<No data fields>}, mutex_ = @0x1c03630, locked_ = true}
        n = <optimised out>
#4 0x00007f732dcb1375 in boost::asio::io_service::run (this=0x1b34220) at /usr/include/boost/asio/impl/io_service.ipp:59
        ec = {m_val = 0, m_cat = 0x7f732cca90d8}
        s = <optimised out>
#5 0x00007f732d5619f0 in std::(anonymous namespace)::execute_native_thread_routine (__p=<optimised out>) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:74
        __t = <optimised out>
#6 0x00007f732da19f8e in start_thread (arg=0x7f7321c9c700) at pthread_create.c:311
        __res = <optimised out>
        pd = 0x7f7321c9c700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140132464838400, 5423417445248852111, 0, 140132670877792, 140132663572288, 4096, -5357705766371925873, -5357733049048440689}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#7 0x00007f732cfcae1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.

Thread 4 (Thread 0x7f732149b700 (LWP 10235)):
#0 0x00007f732cfc3233 in select () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1 0x00007f732dcb087b in select (ec=<synthetic pointer>, timeout=0x7f732149ac70, exceptfds=0x1c329b0, writefds=0x1c32928, readfds=0x1c328a0, nfds=9) at /usr/include/boost/asio/detail/impl/socket_ops.ipp:1683
No locals.
#2 boost::asio::detail::select_reactor::run (this=0x1c32780, block=true, ops=...) at /usr/include/boost/asio/detail/impl/select_reactor.ipp:213
        tv_buf = {tv_sec = 299, tv_usec = 396717}
        tv = 0x7f732149ac70
        retval = <optimised out>
        lock = {<boost::noncopyable_::noncopyable> = {<No data fields>}, mutex_ = @0x1c327b0, locked_ = false}
        max_fd = 8
        have_work_to_do = true
#3 0x00007f732dcb0ce2 in do_run_one (ec=..., private_op_queue=..., this_thread=..., lock=..., this=<optimised out>) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:353
        completed_ops = {<boost::noncopyable_::noncopyable> = {<No data fields>}, front_ = 0x0, back_ = 0x0}
        on_exit = {task_io_service_ = 0x1c03600, lock_ = 0x7f732149ad70, ops_ = 0x7f732149ad40}
        o = <optimised out>
        more_handlers = <optimised out>
#4 boost::asio::detail::task_io_service::run (this=0x1c03600, ec=...) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:146
        this_thread = {wakeup_event = 0x7f732149adb0, private_op_queue = 0x0, next = 0x0}
        wakeup_event = {<boost::noncopyable_::noncopyable> = {<No data fields>}, cond_ = {__data = {__lock = 0, __futex = 266, __total_seq = 133, __wakeup_seq = 133, __woken_seq = 133, __mutex = 0x1c03630, __nwaiters = 0, __broadcast_seq = 0}, __size = "\000\000\000\000\n\001\000\000\205\000\000\000\000\000\000\000\205\000\000\000\000\000\000\000\205\000\000\000\000\000\000\000\060\066\300\001", '\000' <repeats 11 times>, __align = 1142461300736}, signalled_ = true}
        ctx = {<boost::noncopyable_::noncopyable> = {<No data fields>}, key_ = 0x1c03600, value_ = 0x7f732149ace0, next_ = 0x0}
        private_op_queue = {<boost::noncopyable_::noncopyable> = {<No data fields>}, front_ = 0x0, back_ = 0x0}
        lock = {<boost::noncopyable_::noncopyable> = {<No data fields>}, mutex_ = @0x1c03630, locked_ = false}
        n = <optimised out>
#5 0x00007f732dcb1375 in boost::asio::io_service::run (this=0x1b34220) at /usr/include/boost/asio/impl/io_service.ipp:59
        ec = {m_val = 0, m_cat = 0x7f732cca90d8}
        s = <optimised out>
#6 0x00007f732d5619f0 in std::(anonymous namespace)::execute_native_thread_routine (__p=<optimised out>) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:74
        __t = <optimised out>
#7 0x00007f732da19f8e in start_thread (arg=0x7f732149b700) at pthread_create.c:311
        __res = <optimised out>
        pd = 0x7f732149b700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140132456445696, 5423417445248852111, 0, 140132670877792, 140132663572288, 4096, -5357704667397169009, -5357733049048440689}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#8 0x00007f732cfcae1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.

Thread 3 (Thread 0x7f7320c9a700 (LWP 10236)):
#0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1 0x00007f732dcb0e9b in wait<boost::asio::detail::scoped_lock<boost::asio::detail::posix_mutex> > (lock=..., this=0x7f7320c99db0) at /usr/include/boost/asio/detail/posix_event.hpp:80
No locals.
#2 do_run_one (ec=..., private_op_queue=..., this_thread=..., lock=..., this=<optimised out>) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:380
No locals.
#3 boost::asio::detail::task_io_service::run (this=0x1c03600, ec=...) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:146
        this_thread = {wakeup_event = 0x7f7320c99db0, private_op_queue = 0x0, next = 0x7f732249cce0}
        wakeup_event = {<boost::noncopyable_::noncopyable> = {<No data fields>}, cond_ = {__data = {__lock = 0, __futex = 11, __total_seq = 6, __wakeup_seq = 5, __woken_seq = 5, __mutex = 0x1c03630, __nwaiters = 2, __broadcast_seq = 0}, __size = "\000\000\000\000\v\000\000\000\006\000\000\000\000\000\000\000\005\000\000\000\000\000\000\000\005\000\000\000\000\000\000\000\060\066\300\001\000\000\000\000\002\000\000\000\000\000\000", __align = 47244640256}, signalled_ = false}
        ctx = {<boost::noncopyable_::noncopyable> = {<No data fields>}, key_ = 0x1c03600, value_ = 0x7f7320c99ce0, next_ = 0x0}
        private_op_queue = {<boost::noncopyable_::noncopyable> = {<No data fields>}, front_ = 0x0, back_ = 0x0}
        lock = {<boost::noncopyable_::noncopyable> = {<No data fields>}, mutex_ = @0x1c03630, locked_ = true}
        n = <optimised out>
#4 0x00007f732dcb1375 in boost::asio::io_service::run (this=0x1b34220) at /usr/include/boost/asio/impl/io_service.ipp:59
        ec = {m_val = 0, m_cat = 0x7f732cca90d8}
        s = <optimised out>
#5 0x00007f732d5619f0 in std::(anonymous namespace)::execute_native_thread_routine (__p=<optimised out>) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:74
        __t = <optimised out>
#6 0x00007f732da19f8e in start_thread (arg=0x7f7320c9a700) at pthread_create.c:311
        __res = <optimised out>
        pd = 0x7f7320c9a700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140132448052992, 5423417445248852111, 0, 140132670877792, 140132663572288, 4096, -5357707966468923249, -5357733049048440689}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#7 0x00007f732cfcae1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.

Thread 2 (Thread 0x7f7320499700 (LWP 10237)):
#0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1 0x00007f732dcb0e9b in wait<boost::asio::detail::scoped_lock<boost::asio::detail::posix_mutex> > (lock=..., this=0x7f7320498db0) at /usr/include/boost/asio/detail/posix_event.hpp:80
No locals.
#2 do_run_one (ec=..., private_op_queue=..., this_thread=..., lock=..., this=<optimised out>) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:380
No locals.
#3 boost::asio::detail::task_io_service::run (this=0x1c03600, ec=...) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:146
        this_thread = {wakeup_event = 0x7f7320498db0, private_op_queue = 0x0, next = 0x7f7320c99ce0}
        wakeup_event = {<boost::noncopyable_::noncopyable> = {<No data fields>}, cond_ = {__data = {__lock = 0, __futex = 309, __total_seq = 155, __wakeup_seq = 154, __woken_seq = 154, __mutex = 0x1c03630, __nwaiters = 2, __broadcast_seq = 0}, __size = "\000\000\000\000\065\001\000\000\233\000\000\000\000\000\000\000\232\000\000\000\000\000\000\000\232\000\000\000\000\000\000\000\060\066\300\001\000\000\000\000\002\000\000\000\000\000\000", __align = 1327144894464}, signalled_ = false}
        ctx = {<boost::noncopyable_::noncopyable> = {<No data fields>}, key_ = 0x1c03600, value_ = 0x7f7320498ce0, next_ = 0x0}
        private_op_queue = {<boost::noncopyable_::noncopyable> = {<No data fields>}, front_ = 0x0, back_ = 0x0}
        lock = {<boost::noncopyable_::noncopyable> = {<No data fields>}, mutex_ = @0x1c03630, locked_ = true}
        n = <optimised out>
#4 0x00007f732dcb1375 in boost::asio::io_service::run (this=0x1b34220) at /usr/include/boost/asio/impl/io_service.ipp:59
        ec = {m_val = 0, m_cat = 0x7f732cca90d8}
        s = <optimised out>
#5 0x00007f732d5619f0 in std::(anonymous namespace)::execute_native_thread_routine (__p=<optimised out>) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:74
        __t = <optimised out>
#6 0x00007f732da19f8e in start_thread (arg=0x7f7320499700) at pthread_create.c:311
        __res = <optimised out>
        pd = 0x7f7320499700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140132439660288, 5423417445248852111, 0, 140132670877792, 140132663572288, 4096, -5357706867494166385, -5357733049048440689}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#7 0x00007f732cfcae1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.

Thread 1 (Thread 0x7f732e0eb780 (LWP 10226)):
#0 std::_Hashtable<unsigned int, std::pair<unsigned int const, mir::graphics::gbm::PageFlipEventData>, std::allocator<std::pair<unsigned int const, mir::graphics::gbm::PageFlipEventData> >, std::_Select1st<std::pair<unsigned int const, mir::graphics::gbm::PageFlipEventData> >, std::equal_to<unsigned int>, std::hash<unsigned int>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, false, false, true>::erase (this=0x1c043f0, __k=@0x1bf9bd0: 4294967295) at /usr/include/c++/4.6/bits/hashtable.h:1097
        __slot = 0x5c9ad29
        __saved_slot = <optimised out>
        __code = 4294967295
        __n = 12137887
        __result = 0
#1 0x00007f732c8a2873 in drmHandleEvent (fd=3, evctx=0x7f732def7ad0 <mir::graphics::gbm::KMSPageFlipper::wait_for_flip(unsigned int)::evctx>) at ../xf86drmMode.c:811
        buffer = "\002\000\000\000 \000\000\000\277\001\000\000\000\000\065\066\000\000\335\332\a\000\362\025\n", '\000' <repeats 13 times>, "\037\000\000\000\000\000\000\000\240\376\233\003\377\177\000\000\020\003\261\001", '\000' <repeats 12 times>"\240, \376\233\003\377\177\000\000\240\376\233\003\377\177\000\000X\377\233\003\377\177\000\000X\377\233\003\377\177\000\000\372(s\177\000\000p\033\252\001\000\000\000\000\366+\234(s\177\000\000p\002\261\001", '\000' <repeats 12 times>, "p\033\252\001", '\000' <repeats 12 times>, " \370\260\001", '\000' <repeats 12 times>, "p\033\252\001\000\000\000\000\271=\235(s\177\000\000 R\301\001\000\000\000\000\001", '\000' <repeats 11 times>"\200, \a\000\000\001\000\000\000\000\000\000\000\001\000\000\000\001\000\000\000\270'\252\001\000\000\000\000 \000\000\000\000\000\000\000\060\002\276\001\000\000\000\000\310"...
        len = <optimised out>
        i = <optimised out>
        e = 0x7fff039bfc60
        vblank = 0x7fff039bfc60
#2 0x00007f732dcca107 in mir::graphics::gbm::KMSPageFlipper::wait_for_flip (this=0x1a28230, crtc_id=10) at /build/buildd/mir-0.0.2/src/graphics/gbm/kms_page_flipper.cpp:155
        lock = {_M_device = 0x1a28298, _M_owns = true}
        tv = {tv_sec = 0, tv_usec = 99996}
        fds = {fds_bits = {8, 0 <repeats 15 times>}}
        ret = <optimised out>
        evctx = {version = 2, vblank_handler = 0x0, page_flip_handler = 0x7f732dcc9ff0 <(anonymous namespace)::page_flip_handler(int, unsigned int, unsigned int, unsigned int, void*)>}
        invalid_tid = {_M_thread = 0}
        done = <optimised out>
#3 0x00007f732dcc80e9 in mir::graphics::gbm::KMSOutput::wait_for_page_flip (this=<optimised out>) at /build/buildd/mir-0.0.2/src/graphics/gbm/kms_output.cpp:168
        __PRETTY_FUNCTION__ = "void mir::graphics::gbm::KMSOutput::wait_for_page_flip()"
#4 0x00007f732dcc61b4 in mir::graphics::gbm::GBMDisplayBuffer::schedule_and_wait_for_page_flip (this=0x1aa0770, bufobj=0x1b3b3d0) at /build/buildd/mir-0.0.2/src/graphics/gbm/gbm_display_buffer.cpp:263
        __for_range = std::vector of length 1, capacity 1 = {std::shared_ptr (count 2, weak 0) 0x1aa0390}
        page_flips_pending = <optimised out>
#5 0x00007f732dcc622b in post_update (this=0x1aa0770) at /build/buildd/mir-0.0.2/src/graphics/gbm/gbm_display_buffer.cpp:191
        bufobj = 0x1b3b3d0
#6 mir::graphics::gbm::GBMDisplayBuffer::post_update (this=0x1aa0770) at /build/buildd/mir-0.0.2/src/graphics/gbm/gbm_display_buffer.cpp:171
No locals.
#7 0x00007f732dc9b795 in operator() (buffer=..., this=0x1b313b0) at /build/buildd/mir-0.0.2/src/compositor/compositor.cpp:74
        applicator = {<mir::compositor::OperatorForRenderables> = {_vptr.OperatorForRenderables = 0x7f732def2d90 <vtable for mir::compositor::RenderingOperator+16>}, renderer = @0x1b31030, resources = std::vector of length 1, capacity 1 = {std::shared_ptr (count 1, weak 0) 0x1b73510}}
        selector = {<mir::compositor::FilterForRenderables> = {_vptr.FilterForRenderables = 0x7f732def0270 <vtable for (anonymous namespace)::FilterForVisibleRenderablesInRegion+16>}, enclosing_region = @0x7fff039c0280}
#8 std::_Function_handler<void(mir::graphics::DisplayBuffer&), mir::compositor::Compositor::render(mir::graphics::Display*)::<lambda(mir::graphics::DisplayBuffer&)> >::_M_invoke(const std::_Any_data &, mir::graphics::DisplayBuffer &) (__functor=..., __args#0=...) at /usr/include/c++/4.6/functional:1778
No locals.
#9 0x00007f732dcc180c in operator() (__args#0=..., this=0x7fff039c0300) at /usr/include/c++/4.6/functional:2161
No locals.
#10 mir::graphics::gbm::GBMDisplay::for_each_display_buffer(std::function<void (mir::graphics::DisplayBuffer&)> const&) (this=<optimised out>, f=...) at /build/buildd/mir-0.0.2/src/graphics/gbm/gbm_display.cpp:63
        db_ptr = std::tuple containing = {[1] = , [2] = {<std::default_delete<mir::graphics::DisplayBuffer>> = {<No data fields>}, <No data fields>}}
        __for_range = <optimised out>
#11 0x00007f732dc9b562 in mir::compositor::Compositor::render (this=0x1bf22c0, display=0x1a23110) at /build/buildd/mir-0.0.2/src/compositor/compositor.cpp:75
No locals.
#12 0x00007f732dc8cf2d in mir::DisplayServer::start (this=0x7fff039c0510) at /build/buildd/mir-0.0.2/src/display_server.cpp:103
        lk = {_M_device = 0x1a16ae0, _M_owns = false}
#13 0x0000000000406964 in run_mir (socket_file="/tmp/mir_socket") at /build/buildd/mir-0.0.2/src/main.cpp:63
        config = {<mir::ServerConfiguration> = {_vptr.ServerConfiguration = 0x7f732def0870 <vtable for mir::DefaultServerConfiguration+16>}, socket_file = "/tmp/mir_socket", options = std::shared_ptr (count 1, weak 0) 0x1c034e0, graphics_platform = std::shared_ptr (count 9, weak 1) 0x1a1d1e0, application_listener = std::shared_ptr (empty) 0x0}
        server = {p = std::tuple containing = {[1] = , [2] = {<std::default_delete<mir::DisplayServer::Private>> = {<No data fields>}, <No data fields>}}}
#14 main (argc=3, argv=0x7fff039c0618) at /build/buildd/mir-0.0.2/src/main.cpp:96
        options = {<mir::options::Option> = {_vptr.Option = 0x7f732def2090 <vtable for mir::options::ProgramOption+16>}, options = <incomplete type>}
        desc = {static m_default_line_length = 80, m_caption = "Options", m_line_length = 80, m_min_description_length = 40, m_options = std::vector of length 2, capacity 2 = {{px = 0x1a1e410, pn = {pi_ = 0x1a1a0a0}}, {px = 0x1a18d70, pn = {pi_ = 0x1a191e0}}}, belong_to_group = std::vector<bool> of length 2, capacity 64 = {0, 0}, groups = std::vector of length 0, capacity 0}