.
Thread 7 (Thread 0x7f4473fff700 (LWP 2134)):
#0  0x00007f44a1c4a901 in __GI___poll (fds=0x5569ec0e0b70, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
        sc_ret = <optimized out>
#1  0x00007f44a218c169 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f44a218c27c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f447b0ab46d in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
No symbol table info available.
#4  0x00007f44a21b3645 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f44a1f297fc in start_thread (arg=0x7f4473fff700) at pthread_create.c:465
        pd = 0x7f4473fff700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139931980658432, 3093849501700825052, 140721893571070, 140721893571071, 139931980658432, 29, -3141427569240989732, -3141598977508139044}, 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"
        frame = <optimized out>
#6  0x00007f44a1c56b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 6 (Thread 0x7f4454ff9700 (LWP 3296)):
#0  0x00007f44a1c4a901 in __GI___poll (fds=0x7f443402ba00, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
        sc_ret = <optimized out>
#1  0x00007f44a218c169 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f44a218c502 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f44708651d6 in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvideo4linux2.so
No symbol table info available.
#4  0x00007f44a21b3645 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f44a1f297fc in start_thread (arg=0x7f4454ff9700) at pthread_create.c:465
        pd = 0x7f4454ff9700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139931460540160, 3093849501700825052, 140721893564910, 140721893564911, 139931460540160, 29, -3141500133787197476, -3141598977508139044}, 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"
        frame = <optimized out>
#6  0x00007f44a1c56b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 5 (Thread 0x7f44557fa700 (LWP 3626)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1  0x00007f44a21d180a in g_cond_wait_until () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f44a21602e1 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f44a216089c in g_async_queue_timeout_pop () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f44a21b40ee in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f44a21b3645 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#6  0x00007f44a1f297fc in start_thread (arg=0x7f44557fa700) at pthread_create.c:465
        pd = 0x7f44557fa700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139931468932864, 3093849501700825052, 140721893569870, 140721893569871, 139931468932864, 29, -3141501232761954340, -3141598977508139044}, 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"
        frame = <optimized out>
#7  0x00007f44a1c56b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 4 (Thread 0x7f447a214700 (LWP 1968)):
#0  0x00007f44a1c4a901 in __GI___poll (fds=0x7f446c00d2e0, nfds=8, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
        sc_ret = <optimized out>
#1  0x00007f44a218c169 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f44a218c502 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f44a2775b26 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007f44a21b3645 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f44a1f297fc in start_thread (arg=0x7f447a214700) at pthread_create.c:465
        pd = 0x7f447a214700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139932083504896, 3093849501700825052, 140721893575598, 140721893575599, 139932083504896, 139932083505600, -3141405907036561444, -3141598977508139044}, 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"
        frame = <optimized out>
#6  0x00007f44a1c56b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 3 (Thread 0x7f447aa15700 (LWP 1967)):
#0  0x00007f44a1c4a901 in __GI___poll (fds=0x5569eb76dc30, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
        sc_ret = <optimized out>
#1  0x00007f44a218c169 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f44a218c27c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f44a218c2c1 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f44a21b3645 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f44a1f297fc in start_thread (arg=0x7f447aa15700) at pthread_create.c:465
        pd = 0x7f447aa15700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139932091897600, 3093849501700825052, 140721893575214, 140721893575215, 139932091897600, 139932091898304, -3141407008158801956, -3141598977508139044}, 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"
        frame = <optimized out>
#6  0x00007f44a1c56b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 2 (Thread 0x7f447c7a6700 (LWP 1966)):
#0  0x00007f44a1f30072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f449e401a44 <bmalloc::PerProcess<bmalloc::Scavenger>::s_memory+68>) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
        __ret = -512
        oldtype = 0
        err = <optimized out>
        oldtype = <optimized out>
        err = <optimized out>
        __ret = <optimized out>
        resultvar = <optimized out>
        __arg4 = <optimized out>
        __arg3 = <optimized out>
        __arg2 = <optimized out>
        __arg1 = <optimized out>
        _a4 = <optimized out>
        _a3 = <optimized out>
        _a2 = <optimized out>
        _a1 = <optimized out>
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5569eb6d1980, cond=0x7f449e401a18 <bmalloc::PerProcess<bmalloc::Scavenger>::s_memory+24>) at pthread_cond_wait.c:502
        spin = 0
        buffer = {__routine = 0x7f44a1f2fe00 <__condvar_cleanup_waiting>, __arg = 0x7f447c7a5a20, __canceltype = -1639963080, __prev = 0x0}
        cbuffer = {wseq = 5, cond = 0x7f449e401a18 <bmalloc::PerProcess<bmalloc::Scavenger>::s_memory+24>, mutex = 0x5569eb6d1980, private = 0}
        err = <optimized out>
        g = 1
        flags = <optimized out>
        g1_start = <optimized out>
        signals = 0
        result = 0
        wseq = <optimized out>
        seq = 2
        private = <optimized out>
        maxspin = <optimized out>
        err = <optimized out>
        result = <optimized out>
        wseq = <optimized out>
        g = <optimized out>
        seq = <optimized out>
        flags = <optimized out>
        private = <optimized out>
        signals = <optimized out>
        g1_start = <optimized out>
        spin = <optimized out>
        buffer = <optimized out>
        cbuffer = <optimized out>
        rt = <optimized out>
        s = <optimized out>
#2  __pthread_cond_wait (cond=0x7f449e401a18 <bmalloc::PerProcess<bmalloc::Scavenger>::s_memory+24>, mutex=0x5569eb6d1980) at pthread_cond_wait.c:655
No locals.
#3  0x00007f448ddb9310 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
No symbol table info available.
#4  0x00007f449e1db8d7 in bmalloc::Scavenger::threadRunLoop() () from /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
No symbol table info available.
#5  0x00007f448ddbf4e3 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
No symbol table info available.
#6  0x00007f44a1f297fc in start_thread (arg=0x7f447c7a6700) at pthread_create.c:465
        pd = 0x7f447c7a6700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139932122900224, 3093849501700825052, 140721893579950, 140721893579951, 139932122900224, 139932122900928, -3141411036301254692, -3141598977508139044}, 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"
        frame = <optimized out>
#7  0x00007f44a1c56b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 1 (Thread 0x7f44a9ddab00 (LWP 1964)):
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
        set = {__val = {0, 93913445872351, 93913445872540, 93913445872240, 93913445872540, 0, 0, 292784520097262592, 0, 139932751481888, 2064, 139932751481888, 2048, 93913426525584, 93913446402760, 139932748013334}}
        pid = <optimized out>
        tid = <optimized out>
        ret = <optimized out>
#1  0x00007f44a1b7af5d in __GI_abort () at abort.c:90
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x1, sa_sigaction = 0x1}, sa_mask = {__val = {292784520097262592, 93909459927040, 93913426525584, 108, 139932756950240, 140721893571280, 139931922488736, 93913446402760, 139932748026878, 93913426525584, 0, 0, 292784520097262592, 139931922487871, 292784520097262592, 139932754577246}}, sa_flags = -328368752, sa_restorer = 0x6c}
        sigs = {__val = {32, 0 <repeats 15 times>}}
        __cnt = <optimized out>
        __set = <optimized out>
        __cnt = <optimized out>
        __set = <optimized out>
#2  0x00007f44a21b281d in g_assertion_message () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f44a21b28aa in g_assertion_message_expr () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f447086463e in ?? () from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvideo4linux2.so
No symbol table info available.
#5  0x00007f449927548a in gst_device_provider_start () from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
No symbol table info available.
#6  0x00007f449927441d in gst_device_monitor_start () from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
No symbol table info available.
#7  0x00007f44a2489775 in g_type_create_instance () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#8  0x00007f44a246a5e8 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#9  0x00007f44a246bd85 in g_object_new_with_properties () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#10 0x00007f44a246c801 in g_object_new () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#11 0x00005569ea9af0a8 in um_photo_dialog_new ()
No symbol table info available.
#12 0x00005569ea9986f8 in ?? ()
No symbol table info available.
#13 0x00007f44a2489775 in g_type_create_instance () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#14 0x00007f44a246a5e8 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#15 0x00007f44a246c460 in g_object_new_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#16 0x00007f44a246c7d9 in g_object_new () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#17 0x00005569ea919120 in ?? ()
No symbol table info available.
#18 0x00007f44a2467b61 in g_cclosure_marshal_VOID__STRINGv () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#19 0x00007f44a24651d6 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#20 0x00007f44a248079f in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#21 0x00007f44a2480ecf in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#22 0x00005569ea917a8d in ?? ()
No symbol table info available.
#23 0x00007f44a2464f9d in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#24 0x00007f44a2477cde in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#25 0x00007f44a24804b5 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#26 0x00007f44a2480ecf in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#27 0x00007f44a3d40c70 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
No symbol table info available.
#28 0x00007f4490efedae in ffi_call_unix64 () from /usr/lib/x86_64-linux-gnu/libffi.so.6
No symbol table info available.
#29 0x00007f4490efe71f in ffi_call () from /usr/lib/x86_64-linux-gnu/libffi.so.6
No symbol table info available.
#30 0x00007f44a2465b8d in g_cclosure_marshal_generic_va () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#31 0x00007f44a24651d6 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#32 0x00007f44a248079f in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#33 0x00007f44a2480ecf in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#34 0x00007f44a3cffce1 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
No symbol table info available.
#35 0x00007f44a2467ea8 in g_cclosure_marshal_VOID__BOXEDv () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#36 0x00007f44a24651d6 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#37 0x00007f44a248079f in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#38 0x00007f44a2480ecf in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#39 0x00007f44a3cfcf5e in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
No symbol table info available.
#40 0x00007f44a3cfe54b in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
No symbol table info available.
#41 0x00007f44a3d0124e in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
No symbol table info available.
#42 0x00007f44a3cce601 in gtk_event_controller_handle_event () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
No symbol table info available.
#43 0x00007f44a3e9241b in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
No symbol table info available.
#44 0x00007f44a3d49637 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
No symbol table info available.
#45 0x00007f44a24651d6 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#46 0x00007f44a248016d in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#47 0x00007f44a2480ecf in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#48 0x00007f44a3e946d4 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
No symbol table info available.
#49 0x00007f44a3d464ce in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
No symbol table info available.
#50 0x00007f44a3d48648 in gtk_main_do_event () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
No symbol table info available.
#51 0x00007f44a38469a5 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
No symbol table info available.
#52 0x00007f44a3878172 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
No symbol table info available.
#53 0x00007f44a218bfb7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#54 0x00007f44a218c1f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#55 0x00007f44a218c27c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#56 0x00007f44a2749c4d in g_application_run () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#57 0x00005569ea9118b1 in main ()
No symbol table info available.