Backtrace when attaching with gdb:

#0  0xb62c9712 in epoll_wait () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0xb6ee93fa in boost::asio::detail::epoll_reactor::run (this=0x1fef6e8, block=block@entry=true, ops=...) at /usr/include/boost/asio/detail/impl/epoll_reactor.ipp:392
        timeout = <optimized out>
        events = {{events = 0, data = {ptr = 0x0, fd = 0, u32 = 0, u64 = 0}} <repeats 38 times>, {events = 0, data = {ptr = 0x0, fd = 0, u32 = 0, u64 = 141392522407575552}}, {events = 32920512, data = {ptr = 0x1f5a0d0, fd = 32874704, u32 = 32874704, u64 = 32874704}}, {
            events = 32872688, data = {ptr = 0x4, fd = 4, u32 = 4, u64 = 4}}, {events = 32920512, data = {ptr = 0x0, fd = 0, u32 = 0, u64 = 0}}, {events = 32920512, data = {ptr = 0x0, fd = 0, u32 = 0, u64 = 141392522407575552}}, {events = 32874704, data = {
              ptr = 0x1f598f0, fd = 32872688, u32 = 32872688, u64 = 13176978892729456880}}, {events = 3068944384, data = {ptr = 0xb6e459c5, fd = -1226548795, u32 = 3068418501, u64 = 13181015765591284165}}, {events = 0, data = {ptr = 0xaa903f48, fd = -1433387192, 
              u32 = 2861580104, u64 = 13178762878944034632}}, {events = 0, data = {ptr = 0x1f5ef58, fd = 32894808, u32 = 32894808, u64 = 32894808}}, {events = 3197337120, data = {ptr = 0x1f5ef58, fd = 32894808, u32 = 32894808, u64 = 144299029888888664}}, {
            events = 33597384, data = {ptr = 0x0, fd = 0, u32 = 0, u64 = 13732458124168658944}}, {events = 33607216, data = {ptr = 0xbe937e20, fd = -1097630176, u32 = 3197337120, u64 = 13177003737984761376}}, {events = 0, data = {ptr = 0x0, fd = 0, u32 = 0, u64 = 0}}, {
            events = 0, data = {ptr = 0x2, fd = 2, u32 = 2, u64 = 145269464831623170}}, {events = 2, data = {ptr = 0x22b0ddc, fd = 36376028, u32 = 36376028, u64 = 8626310620}}, {events = 36376028, data = {ptr = 0xbe937e4c, fd = -1097630132, u32 = 3197337164, 
              u64 = 13123924874283417164}}, {events = 36376028, data = {ptr = 0x2c, fd = 44, u32 = 44, u64 = 193273528364}}, {events = 3069841168, data = {ptr = 0x2d, fd = 45, u32 = 45, u64 = 45}}, {events = 1, data = {ptr = 0x1, fd = 1, u32 = 1, 
              u64 = 145246894778482689}}, {events = 2, data = {ptr = 0x3, fd = 3, u32 = 3, u64 = 18161629713510957059}}, {events = 36376028, data = {ptr = 0x6c, fd = 108, u32 = 108, u64 = 145246894778482796}}, {events = 36376028, data = {ptr = 0xbe937f38, 
              fd = -1097629896, u32 = 3197337400, u64 = 13732460669986635576}}, {events = 103, data = {ptr = 0x1, fd = 1, u32 = 1, u64 = 463856467969}}, {events = 3197337416, data = {ptr = 0x0, fd = 0, u32 = 0, u64 = 13732459361119240192}}, {events = 0, data = {
              ptr = 0x76, fd = 118, u32 = 118, u64 = 13732459567277670518}}, {events = 103, data = {ptr = 0xbe937f38, fd = -1097629896, u32 = 3197337400, u64 = 13732459639194484536}}, {events = 3197337400, data = {ptr = 0x67, fd = 103, u32 = 103, 
              u64 = 13123673752938217575}}, {events = 3197337368, data = {ptr = 0xb6fa0f10 <__stack_chk_guard>, fd = -1225126128, u32 = 3069841168, u64 = 13123673481130151696}}, {events = 43, data = {ptr = 0xbe937fec, fd = -1097629716, u32 = 3197337580, 
              u64 = 13123643665594679276}}, {events = 3197337400, data = {ptr = 0x0, fd = 0, u32 = 0, u64 = 13732459361119240192}}, {events = 3197337444, data = {ptr = 0xbe937f58, fd = -1097629864, u32 = 3197337432, u64 = 7492304728}}, {events = 9, data = {ptr = 0x1, 
              fd = 1, u32 = 1, u64 = 1}}, {events = 4, data = {ptr = 0xbe937f58, fd = -1097629864, u32 = 3197337432, u64 = 11787272024}}, {events = 4, data = {ptr = 0xbe937f58, fd = -1097629864, u32 = 3197337432, u64 = 13128831883009032024}}, {events = 3055657113, 
            data = {ptr = 0x20419a0, fd = 33823136, u32 = 33823136, u64 = 206192253344}}, {events = 36376152, data = {ptr = 0x0, fd = 0, u32 = 0, u64 = 0}}, {events = 3197337416, data = {ptr = 0xb6235398, fd = -1239198824, u32 = 3055768472, u64 = 13124425637263791000}}, {
            events = 33519408, data = {ptr = 0x1feceb0, fd = 33476272, u32 = 33476272, u64 = 156233833471987376}}, {events = 36376108, data = {ptr = 0x1fec7c0, fd = 33474496, u32 = 33474496, u64 = 143772277920417728}}, {events = 64, data = {ptr = 0x22b0e18, 
              fd = 36376088, u32 = 36376088, u64 = 13184867420510817816}}, {events = 16, data = {ptr = 0x0, fd = 0, u32 = 0, u64 = 13184867420474441728}}, {events = 3069841168, data = {ptr = 0x0, fd = 0, u32 = 0, u64 = 156233850618380288}}, {events = 36376088, data = {
              ptr = 0x0, fd = 0, u32 = 0, u64 = 143771865570082816}}, {events = 3069841168, data = {ptr = 0x20, fd = 32, u32 = 32, u64 = 143771865570082848}}, {events = 3069841168, data = {ptr = 0x20, fd = 32, u32 = 32, u64 = 13732461216545112096}}, {events = 3069841168, 
            data = {ptr = 0xbe938174, fd = -1097629324, u32 = 3197337972, u64 = 13123867742628446580}}, {events = 3197304832, data = {ptr = 0x1fec7c0, fd = 33474496, u32 = 33474496, u64 = 33474496}}, {events = 3055768472, data = {ptr = 0x1fec6e4, fd = 33474276, 
              u32 = 33474276, u64 = 13123906179421882084}}, {events = 0, data = {ptr = 0xbe938030, fd = -1097629648, u32 = 3197337648, u64 = 13123548188471689264}}, {events = 0, data = {ptr = 0xb6320000, fd = -1238237184, u32 = 3056730112, u64 = 143776335392800768}}, {
            events = 0, data = {ptr = 0x0, fd = 0, u32 = 0, u64 = 0}}, {events = 3055767552, data = {ptr = 0xb6320000, fd = -1238237184, u32 = 3056730112, u64 = 159898577470095360}}, {events = 34996496, data = {ptr = 0xb6320000, fd = -1238237184, u32 = 3056730112, 
              u64 = 13732461219601842176}}, {events = 3069841168, data = {ptr = 0xbe938174, fd = -1097629324, u32 = 3197337972, u64 = 151031634807980404}}, {events = 35164800, data = {ptr = 0xbe9380c0, fd = -1097629504, u32 = 3197337792, u64 = 145324344826101952}}, {
            events = 3197337776, data = {ptr = 0xbe9380c0, fd = -1097629504, u32 = 3197337792, u64 = 13732461219742449856}}, {events = 3069841168, data = {ptr = 0xbe938174, fd = -1097629324, u32 = 3197337972, u64 = 4364707877323124}}, {events = 0, data = {
              ptr = 0x23812e8, fd = 37229288, u32 = 37229288, u64 = 151031631647871720}}, {events = 1635544, data = {ptr = 0xb6320000, fd = -1238237184, u32 = 3056730112, u64 = 4129395068502016}}, {events = 956857, data = {ptr = 0xb6320000, fd = -1238237184, 
              u32 = 3056730112, u64 = 4129068650987520}}, {events = 956825, data = {ptr = 0x0, fd = 0, u32 = 0, u64 = 13732461749121056768}}, {events = 3197337908, data = {ptr = 0xbe938174, fd = -1097629324, u32 = 3197337972, u64 = 3197337972}}, {events = 3056730112, 
            data = {ptr = 0xbe938174, fd = -1097629324, u32 = 3197337972, u64 = 3197337972}}, {events = 3056730112, data = {ptr = 0xbe938134, fd = -1097629388, u32 = 3197337908, u64 = 3197337908}}, {events = 3056730112, data = {ptr = 0x237f2f0, fd = 37221104, 
              u32 = 37221104, u64 = 13182159254652973808}}, {events = 35139928, data = {ptr = 0xa12afa17, fd = -1591018985, u32 = 2703948311, u64 = 150924809888004631}}, {events = 3197337972, data = {ptr = 0x0, fd = 0, u32 = 0, u64 = 13128796661079867392}}, {
            events = 36365000, data = {ptr = 0xa12afa17, fd = -1591018985, u32 = 2703948311, u64 = 13732462095422388759}}, {events = 3197337972, data = {ptr = 0xb6fa0f10 <__stack_chk_guard>, fd = -1225126128, u32 = 3069841168, u64 = 3069841168}}, {events = 3056730112, 
            data = {ptr = 0x22ae2c8, fd = 36365000, u32 = 36365000, u64 = 36365000}}, {events = 3056730112, data = {ptr = 0x20daa5c, fd = 34450012, u32 = 34450012, u64 = 147239175522724444}}, {events = 33519588, data = {ptr = 0x22b1780, fd = 36378496, u32 = 36378496, 
              u64 = 145288676256716672}}, {events = 0, data = {ptr = 0xbe9381d8, fd = -1097629224, u32 = 3197338072, u64 = 18161629716708295128}}, {events = 0, data = {ptr = 0xb6fa0f10 <__stack_chk_guard>, fd = -1225126128, u32 = 3069841168, u64 = 18161629716580798224}}, 
          {events = 32, data = {ptr = 0xb6fa0f10 <__stack_chk_guard>, fd = -1225126128, u32 = 3069841168, u64 = 13184867423544282896}}, {events = 32, data = {ptr = 0xbe93826c, fd = -1097629076, u32 = 3197338220, u64 = 7492305516}}, {events = 1, data = {ptr = 0xb6320000, 
              fd = -1238237184, u32 = 3056730112, u64 = 18161629716567687168}}, {events = 35193688, data = {ptr = 0xb6fa0f10 <__stack_chk_guard>, fd = -1225126128, u32 = 3069841168, u64 = 18161629716580798224}}, {events = 32, data = {ptr = 0xb6fa0f10 <__stack_chk_guard>, 
              fd = -1225126128, u32 = 3069841168, u64 = 13184867423544282896}}, {events = 32, data = {ptr = 0x1fef64c, fd = 33486412, u32 = 33486412, u64 = 13184868451300079180}}, {events = 1, data = {ptr = 0x0, fd = 0, u32 = 0, u64 = 4294967296}}, {events = 0, data = {
              ptr = 0xfc0b1200, fd = -66383360, u32 = 4228583936, u64 = 143771869798666752}}, {events = 33475536, data = {ptr = 0x1fef618, fd = 33486360, u32 = 33486360, u64 = 13184867420507928088}}, {events = 33475536, data = {ptr = 0x1fef618, fd = 33486360, 
              u32 = 33486360, u64 = 13123551157425206808}}, {events = 0, data = {ptr = 0x0, fd = 0, u32 = 0, u64 = 0}}, {events = 3197338232, data = {ptr = 0x0, fd = 0, u32 = 0, u64 = 18161629713510957056}}, {events = 3069120648, data = {ptr = 0x1, fd = 1, u32 = 1, 
              u64 = 13184867420474441729}}, {events = 33486360, data = {ptr = 0x1fef618, fd = 33486360, u32 = 33486360, u64 = 13732463742019368472}}, {events = 33458052, data = {ptr = 0x0, fd = 0, u32 = 0, u64 = 13181711242282139648}}, {events = 3197338416, data = {
              ptr = 0x1fe878c, fd = 33458060, u32 = 33458060, u64 = 143701221981456268}}}
        num_events = <optimized out>
        check_timers = <optimized out>
#2  0xb6eeb296 in do_run_one (ec=..., this_thread=..., lock=..., this=0x1fef618) at /usr/include/boost/asio/detail/impl/task_io_service.ipp:368
        on_exit = {task_io_service_ = 0x1fef618, lock_ = 0xbe938304, this_thread_ = 0xbe938330}
        more_handlers = false
#3  boost::asio::detail::task_io_service::run (this=0x1fef618, 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_ = 0xaa972fd8}, wakeup_event = 0xbe938348, 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 44 times>, "Ȫ\377\001", __align = 0}, signalled_ = false}
        ctx = {<boost::asio::detail::noncopyable> = {<No data fields>}, key_ = 0x1fef618, value_ = 0xbe938330, next_ = 0x0}
        lock = {<boost::asio::detail::noncopyable> = {<No data fields>}, mutex_ = @0x1fef630, locked_ = false}
        n = 2951
#4  0xb6eeb666 in run (this=0xb6f0763c <core::dbus::asio::make_executor(std::shared_ptr<core::dbus::Bus> const&)::io>) at /usr/include/boost/asio/impl/io_service.ipp:59
        ec = {m_val = 0, m_cat = 0xb643d078}
#5  core::dbus::asio::Executor::run (this=<optimized out>) at /build/buildd/dbus-cpp-4.3.0+15.04.20150123~rtm/src/core/dbus/asio/executor.cpp:386
No locals.
#6  0xb6ed4844 in core::dbus::Bus::run (this=<optimized out>) at /build/buildd/dbus-cpp-4.3.0+15.04.20150123~rtm/src/core/dbus/bus.cpp:343
No locals.
#7  0x000e89ea in core::ubuntu::media::ServiceSkeleton::run (this=<optimized out>) at /build/buildd/media-hub-2.0.0+15.04.20150120~rtm/src/core/media/service_skeleton.cpp:452
No locals.
#8  0x000e7f12 in main () at /build/buildd/media-hub-2.0.0+15.04.20150120~rtm/src/core/media/server/server.cpp:40
        service = std::shared_ptr (count 6, weak 1) 0x1fe8afc