.
Thread 11 (Thread 0x7fc78a7fa700 (LWP 10102)):
#0  0x00007fc80cd15786 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7fc78a7f97d0, expected=0, futex_word=0x7fc7e75c8060) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
        __ret = -516
        oldtype = 0
        err = <optimized out>
#1  __pthread_cond_wait_common (abstime=0x7fc78a7f97d0, mutex=0x7fc7e75c8010, cond=0x7fc7e75c8038) at pthread_cond_wait.c:539
        spin = 0
        buffer = {__routine = 0x7fc80cd14e00 <__condvar_cleanup_waiting>, __arg = 0x7fc78a7f9750, __canceltype = -413368304, __prev = 0x0}
        cbuffer = {wseq = 44, cond = 0x7fc7e75c8038, mutex = 0x7fc7e75c8010, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        maxspin = 0
        signals = 0
        result = 0
        seq = 22
#2  __pthread_cond_timedwait (cond=cond@entry=0x7fc7e75c8038, mutex=mutex@entry=0x7fc7e75c8010, abstime=abstime@entry=0x7fc78a7f97d0) at pthread_cond_wait.c:667
No locals.
#3  0x00007fc808fccf6a in WTF::ThreadCondition::timedWait (this=this@entry=0x7fc7e75c8038, mutex=..., absoluteTime=1508084632.624222) at ./Source/WTF/wtf/ThreadingPthreads.cpp:587
        timeSeconds = 1508084632
        timeNanoseconds = 624222040
        targetTime = {tv_sec = 1508084632, tv_nsec = 624222040}
#4  0x00007fc808fa251b in WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) (address=address@entry=0x7fc78a7f98ff, validation=..., beforeSleep=..., timeout=...) at ./Source/WTF/wtf/ParkingLot.cpp:597
        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fc7e75c8010}
        didDequeue = <optimized out>
        result = <optimized out>
#5  0x00007fc808f93db0 in WTF::ParkingLot::parkConditionally<bool WTF::ConditionBase::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1}, bool WTF::ConditionBase::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2}>(void const*, bool WTF::ConditionBase::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1} const&, bool WTF::ConditionBase::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2} const&, WTF::TimeWithDynamicClockType const&) (timeout=..., beforeSleep=..., validation=..., address=0x7fc78a7f98ff) at ./Source/WTF/wtf/ParkingLot.h:85
No locals.
#6  WTF::ConditionBase::waitUntil<WTF::Lock> (timeout=..., lock=..., this=0x7fc78a7f98ff) at ./Source/WTF/wtf/Condition.h:81
No locals.
#7  WTF::ConditionBase::waitFor<WTF::Lock> (relativeTimeout=..., lock=..., this=0x7fc78a7f98ff) at ./Source/WTF/wtf/Condition.h:121
No locals.
#8  WTF::sleep (value=<optimized out>) at ./Source/WTF/wtf/CurrentTime.cpp:326
        fakeLock = {<WTF::LockBase> = {static isHeldBit = 1 '\001', static hasParkedBit = 2 '\002', m_byte = {value = {<std::__atomic_base<unsigned char>> = {static _S_alignment = 1, _M_i = 0 '\000'}, <No data fields>}}}, <No data fields>}
        fakeCondition = {<WTF::ConditionBase> = {m_hasWaiters = {value = {_M_base = {static _S_alignment = 1, _M_i = true}}}}, <No data fields>}
        fakeLocker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fc78a7f98fe}
#9  0x00007fc809a26aad in WebKit::MemoryPressureMonitor::<lambda()>::operator() (__closure=<optimized out>) at ./Source/WebKit/UIProcess/linux/MemoryPressureMonitor.cpp:254
        pollInterval = <optimized out>
        this = <optimized out>
#10 WTF::Function<void()>::CallableWrapper<WebKit::MemoryPressureMonitor::MemoryPressureMonitor()::<lambda()> >::call(void) (this=0x7fc7e75fa150) at ./Source/WTF/wtf/Function.h:101
No locals.
#11 0x00007fc808fa610b in WTF::Function<void ()>::operator()() const (this=<synthetic pointer>) at ./Source/WTF/wtf/Function.h:56
No locals.
#12 WTF::Thread::entryPoint (newThreadContext=0x7fc7e75f3550) at ./Source/WTF/wtf/Threading.cpp:129
        function = {m_callableWrapper = {_M_t = {_M_t = {<std::_Tuple_impl<0, WTF::Function<void()>::CallableWrapperBase*, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Tuple_impl<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Head_base<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase>, true>> = {<std::default_delete<WTF::Function<void()>::CallableWrapperBase>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, WTF::Function<void()>::CallableWrapperBase*, false>> = {_M_head_impl = 0x7fc7e75fa150}, <No data fields>}, <No data fields>}}}}
#13 0x00007fc808fcc429 in WTF::wtfThreadEntryPoint (context=<optimized out>) at ./Source/WTF/wtf/ThreadingPthreads.cpp:228
No locals.
#14 0x00007fc80cd0e7fc in start_thread (arg=0x7fc78a7fa700) at pthread_create.c:465
        pd = 0x7fc78a7fa700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140494998841088, -8497431349134024065, 140730705792398, 140730705792399, 140494998841088, 140494998841792, 8474679155973759615, 8467636550842786431}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#15 0x00007fc80ca3bb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 10 (Thread 0x7fc788ff7700 (LWP 10429)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1  0x00007fc80cfb680a in g_cond_wait_until (cond=cond@entry=0x55f651492678, mutex=mutex@entry=0x55f651492670, end_time=end_time@entry=4703729451) at ../../../../glib/gthread-posix.c:1442
        now = {tv_sec = 4688, tv_nsec = 729452155}
        span = {tv_sec = 14, tv_nsec = 999998845}
        sampled = 13
        res = <optimized out>
#2  0x00007fc80cf452e1 in g_async_queue_pop_intern_unlocked (queue=queue@entry=0x55f651492670, wait=wait@entry=1, end_time=end_time@entry=4703729451) at ../../../../glib/gasyncqueue.c:422
        retval = <optimized out>
        __func__ = "g_async_queue_pop_intern_unlocked"
#3  0x00007fc80cf4589c in g_async_queue_timeout_pop (queue=0x55f651492670, timeout=timeout@entry=15000000) at ../../../../glib/gasyncqueue.c:543
        end_time = 4703729451
        retval = <optimized out>
#4  0x00007fc80cf990ee in g_thread_pool_wait_for_new_pool () at ../../../../glib/gthreadpool.c:167
        pool = <optimized out>
        local_wakeup_thread_serial = <optimized out>
        last_wakeup_thread_serial = <optimized out>
        have_relayed_thread_marker = <optimized out>
#5  g_thread_pool_thread_proxy (data=<optimized out>) at ../../../../glib/gthreadpool.c:364
        free_pool = <optimized out>
        pool = <optimized out>
#6  0x00007fc80cf98645 in g_thread_proxy (data=0x7fc7d8005de0) at ../../../../glib/gthread.c:784
        thread = 0x7fc7d8005de0
#7  0x00007fc80cd0e7fc in start_thread (arg=0x7fc788ff7700) at pthread_create.c:465
        pd = 0x7fc788ff7700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140494973662976, -8497431349134024065, 140730705792446, 140730705792447, 140494973662976, 28, 8474682457192997503, 8467636550842786431}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#8  0x00007fc80ca3bb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 9 (Thread 0x7fc78bffd700 (LWP 10097)):
#0  0x00007fc80ca2f901 in __GI___poll (fds=0x7fc784001580, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007fc80cf71169 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fc784001580, timeout=<optimized out>, context=0x7fc784000b10) at ../../../../glib/gmain.c:4187
        ret = <optimized out>
        errsv = <optimized out>
        poll_func = 0x7fc80cf80640 <g_poll>
#2  g_main_context_iterate (context=0x7fc784000b10, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3881
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = 1
        fds = 0x7fc784001580
#3  0x00007fc80cf71502 in g_main_loop_run (loop=0x7fc784001450) at ../../../../glib/gmain.c:4082
        __func__ = "g_main_loop_run"
#4  0x00007fc808fce360 in WTF::RunLoop::run () at ./Source/WTF/wtf/glib/RunLoopGLib.cpp:96
        runLoop = @0x7fc7e75dc000: {<WTF::FunctionDispatcher> = {<WTF::ThreadSafeRefCounted<WTF::FunctionDispatcher>> = {<WTF::ThreadSafeRefCountedBase> = {m_refCount = {<std::__atomic_base<unsigned int>> = {static _S_alignment = 4, _M_i = 1}, <No data fields>}}, <No data fields>}, _vptr.FunctionDispatcher = 0x7fc8091ddb88 <vtable for WTF::RunLoop+16>}, m_functionQueueLock = {m_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 512, __spins = 0, __elision = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 17 times>, "\002", '\000' <repeats 21 times>, __align = 0}}, m_functionQueue = {m_start = 0, m_end = 0, m_buffer = {<WTF::VectorBufferBase<WTF::Function<void()> >> = {m_buffer = 0x0, m_capacity = 0, m_size = 0}, <No data fields>}}, m_mainContext = {m_ptr = 0x7fc784000b10}, m_mainLoops = {<WTF::VectorBuffer<WTF::GRefPtr<_GMainLoop>, 0>> = {<WTF::VectorBufferBase<WTF::GRefPtr<_GMainLoop> >> = {m_buffer = 0x7fc7e75db000, m_capacity = 16, m_size = 1}, <No data fields>}, <No data fields>}, m_source = {m_ptr = 0x7fc784001470}}
        nestedMainLoop = <optimized out>
#5  0x00007fc808fcd372 in WTF::WorkQueue::<lambda()>::operator() (__closure=0x7fc7e75fa058) at ./Source/WTF/wtf/generic/WorkQueueGeneric.cpp:44
        this = 0x7fc7e75fd2a8
#6  WTF::Function<void()>::CallableWrapper<WTF::WorkQueue::platformInitialize(char const*, WTF::WorkQueue::Type, WTF::WorkQueue::QOS)::<lambda()> >::call(void) (this=0x7fc7e75fa050) at ./Source/WTF/wtf/Function.h:101
No locals.
#7  0x00007fc808fa610b in WTF::Function<void ()>::operator()() const (this=<synthetic pointer>) at ./Source/WTF/wtf/Function.h:56
No locals.
#8  WTF::Thread::entryPoint (newThreadContext=0x7fc7e75f3230) at ./Source/WTF/wtf/Threading.cpp:129
        function = {m_callableWrapper = {_M_t = {_M_t = {<std::_Tuple_impl<0, WTF::Function<void()>::CallableWrapperBase*, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Tuple_impl<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Head_base<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase>, true>> = {<std::default_delete<WTF::Function<void()>::CallableWrapperBase>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, WTF::Function<void()>::CallableWrapperBase*, false>> = {_M_head_impl = 0x7fc7e75fa050}, <No data fields>}, <No data fields>}}}}
#9  0x00007fc808fcc429 in WTF::wtfThreadEntryPoint (context=<optimized out>) at ./Source/WTF/wtf/ThreadingPthreads.cpp:228
No locals.
#10 0x00007fc80cd0e7fc in start_thread (arg=0x7fc78bffd700) at pthread_create.c:465
        pd = 0x7fc78bffd700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140495024019200, -8497431349134024065, 140730705791406, 140730705791407, 140495024019200, 140495024019904, 8474675854754521727, 8467636550842786431}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#11 0x00007fc80ca3bb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 8 (Thread 0x7fc7dccf0700 (LWP 10096)):
#0  0x00007fc80ca2f901 in __GI___poll (fds=0x7fc7d000aa80, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007fc80cf71169 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fc7d000aa80, timeout=<optimized out>, context=0x7fc7d000bf40) at ../../../../glib/gmain.c:4187
        ret = <optimized out>
        errsv = <optimized out>
        poll_func = 0x7fc80cf80640 <g_poll>
#2  g_main_context_iterate (context=0x7fc7d000bf40, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3881
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = 1
        fds = 0x7fc7d000aa80
#3  0x00007fc80cf71502 in g_main_loop_run (loop=0x7fc7d000b040) at ../../../../glib/gmain.c:4082
        __func__ = "g_main_loop_run"
#4  0x00007fc808fce360 in WTF::RunLoop::run () at ./Source/WTF/wtf/glib/RunLoopGLib.cpp:96
        runLoop = @0x7fc7e75e8000: {<WTF::FunctionDispatcher> = {<WTF::ThreadSafeRefCounted<WTF::FunctionDispatcher>> = {<WTF::ThreadSafeRefCountedBase> = {m_refCount = {<std::__atomic_base<unsigned int>> = {static _S_alignment = 4, _M_i = 1}, <No data fields>}}, <No data fields>}, _vptr.FunctionDispatcher = 0x7fc8091ddb88 <vtable for WTF::RunLoop+16>}, m_functionQueueLock = {m_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 512, __spins = 0, __elision = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 17 times>, "\002", '\000' <repeats 21 times>, __align = 0}}, m_functionQueue = {m_start = 1, m_end = 1, m_buffer = {<WTF::VectorBufferBase<WTF::Function<void()> >> = {m_buffer = 0x7fc7e75fc480, m_capacity = 16, m_size = 0}, <No data fields>}}, m_mainContext = {m_ptr = 0x7fc7d000bf40}, m_mainLoops = {<WTF::VectorBuffer<WTF::GRefPtr<_GMainLoop>, 0>> = {<WTF::VectorBufferBase<WTF::GRefPtr<_GMainLoop> >> = {m_buffer = 0x7fc7e75e7000, m_capacity = 16, m_size = 1}, <No data fields>}, <No data fields>}, m_source = {m_ptr = 0x7fc7d000c080}}
        nestedMainLoop = <optimized out>
#5  0x00007fc808fcd372 in WTF::WorkQueue::<lambda()>::operator() (__closure=0x7fc7e75fa018) at ./Source/WTF/wtf/generic/WorkQueueGeneric.cpp:44
        this = 0x7fc7e75fd280
#6  WTF::Function<void()>::CallableWrapper<WTF::WorkQueue::platformInitialize(char const*, WTF::WorkQueue::Type, WTF::WorkQueue::QOS)::<lambda()> >::call(void) (this=0x7fc7e75fa010) at ./Source/WTF/wtf/Function.h:101
No locals.
#7  0x00007fc808fa610b in WTF::Function<void ()>::operator()() const (this=<synthetic pointer>) at ./Source/WTF/wtf/Function.h:56
No locals.
#8  WTF::Thread::entryPoint (newThreadContext=0x7fc7e75f31e0) at ./Source/WTF/wtf/Threading.cpp:129
        function = {m_callableWrapper = {_M_t = {_M_t = {<std::_Tuple_impl<0, WTF::Function<void()>::CallableWrapperBase*, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Tuple_impl<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Head_base<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase>, true>> = {<std::default_delete<WTF::Function<void()>::CallableWrapperBase>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, WTF::Function<void()>::CallableWrapperBase*, false>> = {_M_head_impl = 0x7fc7e75fa010}, <No data fields>}, <No data fields>}}}}
#9  0x00007fc808fcc429 in WTF::wtfThreadEntryPoint (context=<optimized out>) at ./Source/WTF/wtf/ThreadingPthreads.cpp:228
No locals.
#10 0x00007fc80cd0e7fc in start_thread (arg=0x7fc7dccf0700) at pthread_create.c:465
        pd = 0x7fc7dccf0700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140496379774720, -8497431349134024065, 140730705791326, 140730705791327, 140496379774720, 28, 8474849433173435007, 8467636550842786431}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#11 0x00007fc80ca3bb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 7 (Thread 0x7fc7e4edb700 (LWP 10064)):
#0  0x00007fc80ca2f901 in __GI___poll (fds=0x55f651f2d3b0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007fc80cf71169 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x55f651f2d3b0, timeout=<optimized out>, context=0x55f6521df980) at ../../../../glib/gmain.c:4187
        ret = <optimized out>
        errsv = <optimized out>
        poll_func = 0x7fc80cf80640 <g_poll>
#2  g_main_context_iterate (context=context@entry=0x55f6521df980, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3881
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = 1
        fds = 0x55f651f2d3b0
#3  0x00007fc80cf7127c in g_main_context_iteration (context=context@entry=0x55f6521df980, may_block=may_block@entry=1) at ../../../../glib/gmain.c:3947
        retval = <optimized out>
#4  0x00007fc7dcefe46d in dconf_gdbus_worker_thread (user_data=0x55f6521df980) at dconf-gdbus-thread.c:82
        context = 0x55f6521df980
#5  0x00007fc80cf98645 in g_thread_proxy (data=0x55f6522d7540) at ../../../../glib/gthread.c:784
        thread = 0x55f6522d7540
#6  0x00007fc80cd0e7fc in start_thread (arg=0x7fc7e4edb700) at pthread_create.c:465
        pd = 0x7fc7e4edb700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140496516003584, -8497431349134024065, 140730705791598, 140730705791599, 140496516003584, 28, 8474867327617802879, 8467636550842786431}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007fc80ca3bb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 6 (Thread 0x7fc7e65b1700 (LWP 10058)):
#0  0x00007fc80ca2f901 in __GI___poll (fds=0x55f652086460, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007fc80cf71169 in g_main_context_poll (priority=<optimized out>, n_fds=4, fds=0x55f652086460, timeout=<optimized out>, context=0x55f651540830) at ../../../../glib/gmain.c:4187
        ret = <optimized out>
        errsv = <optimized out>
        poll_func = 0x7fc80cf80640 <g_poll>
#2  g_main_context_iterate (context=0x55f651540830, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3881
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 4
        allocated_nfds = 4
        fds = 0x55f652086460
#3  0x00007fc80cf71502 in g_main_loop_run (loop=0x55f651540970) at ../../../../glib/gmain.c:4082
        __func__ = "g_main_loop_run"
#4  0x00007fc80d55ab26 in gdbus_shared_thread_func (user_data=0x55f651540800) at ../../../../gio/gdbusprivate.c:275
        data = 0x55f651540800
#5  0x00007fc80cf98645 in g_thread_proxy (data=0x55f6515110a0) at ../../../../glib/gthread.c:784
        thread = 0x55f6515110a0
#6  0x00007fc80cd0e7fc in start_thread (arg=0x7fc7e65b1700) at pthread_create.c:465
        pd = 0x7fc7e65b1700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140496539948800, -8497431349134024065, 140730705795966, 140730705795967, 140496539948800, 140496539949504, 8474863568447677055, 8467636550842786431}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007fc80ca3bb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 5 (Thread 0x7fc7e6db2700 (LWP 10057)):
#0  0x00007fc80ca2f901 in __GI___poll (fds=0x55f651532460, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007fc80cf71169 in g_main_context_poll (priority=<optimized out>, n_fds=2, fds=0x55f651532460, timeout=<optimized out>, context=0x55f651532320) at ../../../../glib/gmain.c:4187
        ret = <optimized out>
        errsv = <optimized out>
        poll_func = 0x7fc80cf80640 <g_poll>
#2  g_main_context_iterate (context=context@entry=0x55f651532320, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3881
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 2
        allocated_nfds = 2
        fds = 0x55f651532460
#3  0x00007fc80cf7127c in g_main_context_iteration (context=0x55f651532320, may_block=may_block@entry=1) at ../../../../glib/gmain.c:3947
        retval = <optimized out>
#4  0x00007fc80cf712c1 in glib_worker_main (data=<optimized out>) at ../../../../glib/gmain.c:5742
No locals.
#5  0x00007fc80cf98645 in g_thread_proxy (data=0x55f651511000) at ../../../../glib/gthread.c:784
        thread = 0x55f651511000
#6  0x00007fc80cd0e7fc in start_thread (arg=0x7fc7e6db2700) at pthread_create.c:465
        pd = 0x7fc7e6db2700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140496548341504, -8497431349134024065, 140730705795582, 140730705795583, 140496548341504, 140496548342208, 8474862469472920191, 8467636550842786431}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007fc80ca3bb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 4 (Thread 0x7fc7e7e33700 (LWP 10056)):
#0  0x00007fc80cd15072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fc8091fe784 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+3396>) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
        __ret = -512
        oldtype = 0
        err = <optimized out>
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55f65149a390, cond=0x7fc8091fe758 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+3352>) at pthread_cond_wait.c:502
        spin = 0
        buffer = {__routine = 0x7fc80cd14e00 <__condvar_cleanup_waiting>, __arg = 0x7fc7e7e32a10, __canceltype = 20480, __prev = 0x0}
        cbuffer = {wseq = 43, cond = 0x7fc8091fe758 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+3352>, mutex = 0x55f65149a390, private = 0}
        err = <optimized out>
        g = 1
        flags = <optimized out>
        signals = 0
        result = 0
        seq = 21
#2  __pthread_cond_wait (cond=0x7fc8091fe758 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+3352>, mutex=0x55f65149a390) at pthread_cond_wait.c:655
No locals.
#3  0x00007fc7f8c2fdbc in __gthread_cond_wait (__mutex=<optimized out>, __cond=__cond@entry=0x7fc8091fe758 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+3352>) at /build/gcc-7-P5t1VP/gcc-7-7.2.0/build/x86_64-linux-gnu/libstdc++-v3/include/x86_64-linux-gnu/bits/gthr-default.h:864
No locals.
#4  std::condition_variable::wait (this=this@entry=0x7fc8091fe758 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+3352>, __lock=...) at ../../../../../src/libstdc++-v3/src/c++11/condition_variable.cc:53
        __e = <optimized out>
#5  0x00007fc808fd6fa6 in std::_V2::condition_variable_any::wait<std::unique_lock<bmalloc::Mutex> > (__lock=<synthetic pointer>..., this=<optimized out>) at /usr/include/c++/7/condition_variable:251
        __mutex = {<std::__shared_ptr<std::mutex, (__gnu_cxx::_Lock_policy)2>> = {<std::__shared_ptr_access<std::mutex, (__gnu_cxx::_Lock_policy)2, false, false>> = {<No data fields>}, _M_ptr = <optimized out>, _M_refcount = {_M_pi = 0x55f65149a3c0}}, <No data fields>}
        __my_lock = {_M_device = 0x0, _M_owns = false}
        __my_lock2 = {_M_device = 0x55f65149a390, _M_owns = true}
#6  std::_V2::condition_variable_any::wait<std::unique_lock<bmalloc::Mutex>, bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop()::{lambda()#1}>(std::unique_lock<bmalloc::Mutex>&, bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop()::{lambda()#1}) (__p=..., __lock=..., this=<optimized out>) at /usr/include/c++/7/condition_variable:260
No locals.
#7  bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop (this=0x7fc8091fe750 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+3344>) at ./Source/bmalloc/bmalloc/AsyncTask.h:129
        lock = {_M_device = 0x7fc8091fe754 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+3348>, _M_owns = false}
#8  0x00007fc808fd72d9 in bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadEntryPoint (asyncTask=<optimized out>) at ./Source/bmalloc/bmalloc/AsyncTask.h:114
No locals.
#9  0x00007fc7f8c360ff in std::execute_native_thread_routine (__p=0x55f651474230) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:83
        __t = {_M_t = {_M_t = {<std::_Tuple_impl<0, std::thread::_State*, std::default_delete<std::thread::_State> >> = {<std::_Tuple_impl<1, std::default_delete<std::thread::_State> >> = {<std::_Head_base<1, std::default_delete<std::thread::_State>, true>> = {<std::default_delete<std::thread::_State>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, std::thread::_State*, false>> = {_M_head_impl = 0x55f651474230}, <No data fields>}, <No data fields>}}}
#10 0x00007fc80cd0e7fc in start_thread (arg=0x7fc7e7e33700) at pthread_create.c:465
        pd = 0x7fc7e7e33700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140496565647104, -8497431349134024065, 140730705800478, 140730705800479, 140496565647104, 140496565647808, 8474860752022872703, 8467636550842786431}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#11 0x00007fc80ca3bb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 3 (Thread 0x7fc7e8634700 (LWP 10055)):
#0  0x00007fc80cd15072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fc8091ff500 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+6848>) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
        __ret = -512
        oldtype = 0
        err = <optimized out>
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55f65149a150, cond=0x7fc8091ff4d8 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+6808>) at pthread_cond_wait.c:502
        spin = 0
        buffer = {__routine = 0x7fc80cd14e00 <__condvar_cleanup_waiting>, __arg = 0x7fc7e8633a10, __canceltype = 0, __prev = 0x0}
        cbuffer = {wseq = 0, cond = 0x7fc8091ff4d8 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+6808>, mutex = 0x55f65149a150, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        signals = 0
        result = 0
        seq = 0
#2  __pthread_cond_wait (cond=0x7fc8091ff4d8 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+6808>, mutex=0x55f65149a150) at pthread_cond_wait.c:655
No locals.
#3  0x00007fc7f8c2fdbc in __gthread_cond_wait (__mutex=<optimized out>, __cond=__cond@entry=0x7fc8091ff4d8 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+6808>) at /build/gcc-7-P5t1VP/gcc-7-7.2.0/build/x86_64-linux-gnu/libstdc++-v3/include/x86_64-linux-gnu/bits/gthr-default.h:864
No locals.
#4  std::condition_variable::wait (this=this@entry=0x7fc8091ff4d8 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+6808>, __lock=...) at ../../../../../src/libstdc++-v3/src/c++11/condition_variable.cc:53
        __e = <optimized out>
#5  0x00007fc808fd6fa6 in std::_V2::condition_variable_any::wait<std::unique_lock<bmalloc::Mutex> > (__lock=<synthetic pointer>..., this=<optimized out>) at /usr/include/c++/7/condition_variable:251
        __mutex = {<std::__shared_ptr<std::mutex, (__gnu_cxx::_Lock_policy)2>> = {<std::__shared_ptr_access<std::mutex, (__gnu_cxx::_Lock_policy)2, false, false>> = {<No data fields>}, _M_ptr = <optimized out>, _M_refcount = {_M_pi = 0x55f65149a180}}, <No data fields>}
        __my_lock = {_M_device = 0x0, _M_owns = false}
        __my_lock2 = {_M_device = 0x55f65149a150, _M_owns = true}
#6  std::_V2::condition_variable_any::wait<std::unique_lock<bmalloc::Mutex>, bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop()::{lambda()#1}>(std::unique_lock<bmalloc::Mutex>&, bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop()::{lambda()#1}) (__p=..., __lock=..., this=<optimized out>) at /usr/include/c++/7/condition_variable:260
No locals.
#7  bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop (this=0x7fc8091ff4d0 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+6800>) at ./Source/bmalloc/bmalloc/AsyncTask.h:129
        lock = {_M_device = 0x7fc8091ff4d4 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+6804>, _M_owns = false}
#8  0x00007fc808fd72d9 in bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadEntryPoint (asyncTask=<optimized out>) at ./Source/bmalloc/bmalloc/AsyncTask.h:114
No locals.
#9  0x00007fc7f8c360ff in std::execute_native_thread_routine (__p=0x55f6514742f0) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:83
        __t = {_M_t = {_M_t = {<std::_Tuple_impl<0, std::thread::_State*, std::default_delete<std::thread::_State> >> = {<std::_Tuple_impl<1, std::default_delete<std::thread::_State> >> = {<std::_Head_base<1, std::default_delete<std::thread::_State>, true>> = {<std::default_delete<std::thread::_State>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, std::thread::_State*, false>> = {_M_head_impl = 0x55f6514742f0}, <No data fields>}, <No data fields>}}}
#10 0x00007fc80cd0e7fc in start_thread (arg=0x7fc7e8634700) at pthread_create.c:465
        pd = 0x7fc7e8634700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140496574039808, -8497431349134024065, 140730705800478, 140730705800479, 140496574039808, 140496574040512, 8474894837420204671, 8467636550842786431}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#11 0x00007fc80ca3bb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 2 (Thread 0x7fc7e8e35700 (LWP 10054)):
#0  0x00007fc80cd15072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fc809200280 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+10304>) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
        __ret = -512
        oldtype = 0
        err = <optimized out>
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55f651499ed0, cond=0x7fc809200258 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+10264>) at pthread_cond_wait.c:502
        spin = 0
        buffer = {__routine = 0x7fc80cd14e00 <__condvar_cleanup_waiting>, __arg = 0x7fc7e8e34a10, __canceltype = 5, __prev = 0x0}
        cbuffer = {wseq = 0, cond = 0x7fc809200258 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+10264>, mutex = 0x55f651499ed0, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        signals = 0
        result = 0
        seq = 0
#2  __pthread_cond_wait (cond=0x7fc809200258 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+10264>, mutex=0x55f651499ed0) at pthread_cond_wait.c:655
No locals.
#3  0x00007fc7f8c2fdbc in __gthread_cond_wait (__mutex=<optimized out>, __cond=__cond@entry=0x7fc809200258 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+10264>) at /build/gcc-7-P5t1VP/gcc-7-7.2.0/build/x86_64-linux-gnu/libstdc++-v3/include/x86_64-linux-gnu/bits/gthr-default.h:864
No locals.
#4  std::condition_variable::wait (this=this@entry=0x7fc809200258 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+10264>, __lock=...) at ../../../../../src/libstdc++-v3/src/c++11/condition_variable.cc:53
        __e = <optimized out>
#5  0x00007fc808fd6fa6 in std::_V2::condition_variable_any::wait<std::unique_lock<bmalloc::Mutex> > (__lock=<synthetic pointer>..., this=<optimized out>) at /usr/include/c++/7/condition_variable:251
        __mutex = {<std::__shared_ptr<std::mutex, (__gnu_cxx::_Lock_policy)2>> = {<std::__shared_ptr_access<std::mutex, (__gnu_cxx::_Lock_policy)2, false, false>> = {<No data fields>}, _M_ptr = <optimized out>, _M_refcount = {_M_pi = 0x55f651499f00}}, <No data fields>}
        __my_lock = {_M_device = 0x0, _M_owns = false}
        __my_lock2 = {_M_device = 0x55f651499ed0, _M_owns = true}
#6  std::_V2::condition_variable_any::wait<std::unique_lock<bmalloc::Mutex>, bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop()::{lambda()#1}>(std::unique_lock<bmalloc::Mutex>&, bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop()::{lambda()#1}) (__p=..., __lock=..., this=<optimized out>) at /usr/include/c++/7/condition_variable:260
No locals.
#7  bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop (this=0x7fc809200250 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+10256>) at ./Source/bmalloc/bmalloc/AsyncTask.h:129
        lock = {_M_device = 0x7fc809200254 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+10260>, _M_owns = false}
#8  0x00007fc808fd72d9 in bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadEntryPoint (asyncTask=<optimized out>) at ./Source/bmalloc/bmalloc/AsyncTask.h:114
No locals.
#9  0x00007fc7f8c360ff in std::execute_native_thread_routine (__p=0x55f6514743b0) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:83
        __t = {_M_t = {_M_t = {<std::_Tuple_impl<0, std::thread::_State*, std::default_delete<std::thread::_State> >> = {<std::_Tuple_impl<1, std::default_delete<std::thread::_State> >> = {<std::_Head_base<1, std::default_delete<std::thread::_State>, true>> = {<std::default_delete<std::thread::_State>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, std::thread::_State*, false>> = {_M_head_impl = 0x55f6514743b0}, <No data fields>}, <No data fields>}}}
#10 0x00007fc80cd0e7fc in start_thread (arg=0x7fc7e8e35700) at pthread_create.c:465
        pd = 0x7fc7e8e35700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140496582432512, -8497431349134024065, 140730705800478, 140730705800479, 140496582432512, 140496582433216, 8474893734150480511, 8467636550842786431}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#11 0x00007fc80ca3bb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 1 (Thread 0x7fc814b9fb00 (LWP 10052)):
#0  on_notification_dismissed (button=button@entry=0x0, user_data=0x55f652f084b0, user_data@entry=<error reading variable: value has been optimized out>) at cc-printers-panel.c:674
        priv = <optimized out>
        self = 0x55f652f084b0
#1  0x000055f650aadaae in on_remove_printer_timeout (user_data=<error reading variable: value has been optimized out>) at cc-printers-panel.c:693
No locals.
#2  0x00007fc80cf718a3 in g_timeout_dispatch (source=source@entry=0x55f6522a23f0, callback=<optimized out>, user_data=<optimized out>) at ../../../../glib/gmain.c:4633
        timeout_source = 0x55f6522a23f0
        again = <optimized out>
#3  0x00007fc80cf70e25 in g_main_dispatch (context=0x55f65149cd10) at ../../../../glib/gmain.c:3148
        dispatch = 0x7fc80cf71890 <g_timeout_dispatch>
        prev_source = 0x0
        was_in_call = 0
        user_data = 0x55f652f084b0
        callback = 0x55f650aadaa0 <on_remove_printer_timeout>
        cb_funcs = 0x7fc80d238280 <g_source_callback_funcs>
        cb_data = 0x55f652bb65d0
        need_destroy = <optimized out>
        source = 0x55f6522a23f0
        current = 0x55f651520c90
        i = 0
#4  g_main_context_dispatch (context=context@entry=0x55f65149cd10) at ../../../../glib/gmain.c:3813
No locals.
#5  0x00007fc80cf711f0 in g_main_context_iterate (context=context@entry=0x55f65149cd10, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3886
        max_priority = 2147483647
        timeout = 2344
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = 8
        fds = 0x55f65232e400
#6  0x00007fc80cf7127c in g_main_context_iteration (context=context@entry=0x55f65149cd10, may_block=may_block@entry=1) at ../../../../glib/gmain.c:3947
        retval = <optimized out>
#7  0x00007fc80d52ec4d in g_application_run (application=0x55f651ada460, argc=<optimized out>, argv=<optimized out>) at ../../../../gio/gapplication.c:2401
        arguments = 0x55f651d4cf00
        status = 0
        context = 0x55f65149cd10
        acquired_context = <optimized out>
        __func__ = "g_application_run"
#8  0x000055f650a08891 in main (argc=<optimized out>, argv=<optimized out>) at main.c:57
        application = 0x55f651ada460
        status = <optimized out>