.
Thread 15 (Thread 0x7f2a22c12700 (LWP 23988)):
#0  0x00007f2a219fdcdd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f2a1afa4099 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2a1afa4432 in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2a12b29b15 in gtk_main () at /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#4  0x00007f2a1e390e18 in ffi_call_unix64 () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#5  0x00007f2a1e39087a in ffi_call () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#6  0x00007f2a1b720de4 in  () at /usr/lib/python3/dist-packages/gi/_gi.cpython-36m-x86_64-linux-gnu.so
#7  0x00007f2a1b722998 in  () at /usr/lib/python3/dist-packages/gi/_gi.cpython-36m-x86_64-linux-gnu.so
#8  0x00000000004591b3 in _PyObject_FastCallDict ()
#9  0x000000000054e607 in  ()
#10 0x0000000000552f9b in _PyEval_EvalFrameDefault ()
#11 0x000000000054da88 in  ()
#12 0x000000000054e9e6 in  ()
#13 0x0000000000552f9b in _PyEval_EvalFrameDefault ()
#14 0x000000000054e4b1 in  ()
#15 0x000000000054f3f3 in PyEval_EvalCode ()
#16 0x000000000042ae29 in PyRun_FileExFlags ()
#17 0x000000000042b015 in PyRun_SimpleFileExFlags ()
#18 0x000000000044116b in Py_Main ()
#19 0x00000000004219a4 in main ()
.
Thread 14 (Thread 0x7f29a0ff9700 (LWP 24018)):
#0  0x00007f2a219fdcdd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f2a1afa4099 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2a1afa4432 in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2a0efe7630 in WTF::RunLoop::run() () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#4  0x00007f2a0efe6642 in  () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#5  0x00007f2a0efbf3cb in WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*) () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#6  0x00007f2a0efe56f9 in  () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#7  0x00007f2a2282574a in start_thread (arg=0x7f29a0ff9700) at pthread_create.c:456
        __res = <optimized out>
        pd = 0x7f29a0ff9700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139816771491584, -5678151494117850893, 140727950353774, 140727950353775, 139816771492288, 139816771491584, 5719684449008910579, 5721649914893205747}, 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  0x00007f2a21a09caf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97
.
Thread 13 (Thread 0x7f29bf9ff700 (LWP 23995)):
#0  0x00007f2a219fdcdd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f2a1afa4099 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2a1afa4432 in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2a0efe7630 in WTF::RunLoop::run() () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#4  0x00007f2a0efe6642 in  () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#5  0x00007f2a0efbf3cb in WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*) () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#6  0x00007f2a0efe56f9 in  () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#7  0x00007f2a2282574a in start_thread (arg=0x7f29bf9ff700) at pthread_create.c:456
        __res = <optimized out>
        pd = 0x7f29bf9ff700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139817285318400, -5678151494117850893, 140727950351614, 140727950351615, 139817285319104, 139817285318400, 5719668777746989299, 5721649914893205747}, 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  0x00007f2a21a09caf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97
.
Thread 12 (Thread 0x7f29a37fe700 (LWP 24009)):
#0  0x00007f2a21a03949 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f2a1afe976a in g_cond_wait_until () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2a1af782e1 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2a1af7889c in g_async_queue_timeout_pop () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2a1afcc03e in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f2a1afcb595 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f2a2282574a in start_thread (arg=0x7f29a37fe700) at pthread_create.c:456
        __res = <optimized out>
        pd = 0x7f29a37fe700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139816813455104, -5678151494117850893, 140727950349630, 140727950349631, 139816813455808, 139816813455104, 5719678949840158963, 5721649914893205747}, 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  0x00007f2a21a09caf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97
.
Thread 11 (Thread 0x7f29bd7ff700 (LWP 24001)):
#0  0x00007f2a2282b8c9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f2a0efe623a in WTF::ThreadCondition::timedWait(WTF::Mutex&, double) () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#2  0x00007f2a0efbb7db in WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#3  0x00007f2a0efad070 in WTF::sleep(double) () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#4  0x00007f2a100fce5d in  () at /usr/lib/x86_64-linux-gnu/libwebkit2gtk-4.0.so.37
#5  0x00007f2a0efbf3cb in WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*) () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#6  0x00007f2a0efe56f9 in  () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#7  0x00007f2a2282574a in start_thread (arg=0x7f29bd7ff700) at pthread_create.c:456
        __res = <optimized out>
        pd = 0x7f29bd7ff700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139817249666816, -5678151494117850893, 140727950352270, 140727950352271, 139817249667520, 139817249666816, 5719674550183035123, 5721649914893205747}, 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  0x00007f2a21a09caf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97
.
Thread 10 (Thread 0x7f29be1fc700 (LWP 23998)):
#0  0x00007f2a219fdcdd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f2a1afa4099 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2a1afa4432 in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2a0efe7630 in WTF::RunLoop::run() () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#4  0x00007f2a0efe6642 in  () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#5  0x00007f2a0efbf3cb in WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*) () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#6  0x00007f2a0efe56f9 in  () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#7  0x00007f2a2282574a in start_thread (arg=0x7f29be1fc700) at pthread_create.c:456
        __res = <optimized out>
        pd = 0x7f29be1fc700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139817260140288, -5678151494117850893, 140727950351758, 140727950351759, 139817260140992, 139817260140288, 5719672078966227187, 5721649914893205747}, 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  0x00007f2a21a09caf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97
.
Thread 9 (Thread 0x7f29be9fd700 (LWP 23997)):
#0  0x00007f2a219fdcdd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f2a1afa4099 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2a1afa4432 in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2a0efe7630 in WTF::RunLoop::run() () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#4  0x00007f2a0efe6642 in  () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#5  0x00007f2a0efbf3cb in WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*) () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#6  0x00007f2a0efe56f9 in  () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#7  0x00007f2a2282574a in start_thread (arg=0x7f29be9fd700) at pthread_create.c:456
        __res = <optimized out>
        pd = 0x7f29be9fd700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139817268532992, -5678151494117850893, 140727950351678, 140727950351679, 139817268533696, 139817268532992, 5719670977843986675, 5721649914893205747}, 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  0x00007f2a21a09caf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97
.
Thread 8 (Thread 0x7f29bf1fe700 (LWP 23996)):
#0  0x00007f2a219fdcdd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f2a1afa4099 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2a1afa4432 in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2a0efe7630 in WTF::RunLoop::run() () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#4  0x00007f2a0efe6642 in  () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#5  0x00007f2a0efbf3cb in WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*) () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#6  0x00007f2a0efe56f9 in  () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#7  0x00007f2a2282574a in start_thread (arg=0x7f29bf1fe700) at pthread_create.c:456
        __res = <optimized out>
        pd = 0x7f29bf1fe700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139817276925696, -5678151494117850893, 140727950351694, 140727950351695, 139817276926400, 139817276925696, 5719669878869229811, 5721649914893205747}, 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  0x00007f2a21a09caf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97
.
Thread 7 (Thread 0x7f29c5c8c700 (LWP 23993)):
#0  0x00007f2a219fdcdd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f2a1afa4099 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2a1afa41ac in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2a1afa41f1 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2a1afcb595 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f2a2282574a in start_thread (arg=0x7f29c5c8c700) at pthread_create.c:456
        __res = <optimized out>
        pd = 0x7f29c5c8c700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139817388656384, -5678151494117850893, 140727950350334, 140727950350335, 139817388657088, 139817388656384, 5719761594674610419, 5721649914893205747}, 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"
#6  0x00007f2a21a09caf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97
.
Thread 6 (Thread 0x7f2a06ad9700 (LWP 23991)):
#0  0x00007f2a2282b8c9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f2a0eff03a8 in bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop() () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#2  0x00007f2a0eff05a9 in  () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#3  0x00007f2a1526e12f in  () at /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#4  0x00007f2a2282574a in start_thread (arg=0x7f2a06ad9700) at pthread_create.c:456
        __res = <optimized out>
        pd = 0x7f2a06ad9700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139818477393664, -5678151494117850893, 140727950352062, 140727950352063, 139818477394368, 139818477393664, 5721588133133320435, 5721649914893205747}, 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"
#5  0x00007f2a21a09caf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97
.
Thread 5 (Thread 0x7f2a072da700 (LWP 23990)):
#0  0x00007f2a2282b520 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f2a15267dec in std::condition_variable::wait(std::unique_lock<std::mutex>&) () at /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#2  0x00007f2a0eff0276 in bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop() () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#3  0x00007f2a0eff05a9 in  () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#4  0x00007f2a1526e12f in  () at /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#5  0x00007f2a2282574a in start_thread (arg=0x7f2a072da700) at pthread_create.c:456
        __res = <optimized out>
        pd = 0x7f2a072da700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139818485786368, -5678151494117850893, 140727950352062, 140727950352063, 139818485787072, 139818485786368, 5721587034158563571, 5721649914893205747}, 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"
#6  0x00007f2a21a09caf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97
.
Thread 4 (Thread 0x7f2a07adb700 (LWP 23989)):
#0  0x00007f2a2282b520 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f2a15267dec in std::condition_variable::wait(std::unique_lock<std::mutex>&) () at /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#2  0x00007f2a0eff0276 in bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop() () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#3  0x00007f2a0eff05a9 in  () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#4  0x00007f2a1526e12f in  () at /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#5  0x00007f2a2282574a in start_thread (arg=0x7f2a07adb700) at pthread_create.c:456
        __res = <optimized out>
        pd = 0x7f2a07adb700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139818494179072, -5678151494117850893, 140727950352062, 140727950352063, 139818494179776, 139818494179072, 5721585933036323059, 5721649914893205747}, 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"
#6  0x00007f2a21a09caf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97
.
Thread 3 (Thread 0x7f29a17fa700 (LWP 24014)):
#0  0x00007f2a219fdcdd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f2a1afa4099 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2a1afa4432 in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2a0efe7630 in WTF::RunLoop::run() () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#4  0x00007f2a0efe6642 in  () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#5  0x00007f2a0efbf3cb in WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*) () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#6  0x00007f2a0efe56f9 in  () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#7  0x00007f2a2282574a in start_thread (arg=0x7f29a17fa700) at pthread_create.c:456
        __res = <optimized out>
        pd = 0x7f29a17fa700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139816779884288, -5678151494117850893, 140727950353790, 140727950353791, 139816779884992, 139816779884288, 5719683350034153715, 5721649914893205747}, 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  0x00007f2a21a09caf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97
.
Thread 2 (Thread 0x7f29c548b700 (LWP 23994)):
#0  0x00007f2a219fdcdd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f2a1afa4099 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2a1afa4432 in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2a1aa87836 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f2a1afcb595 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f2a2282574a in start_thread (arg=0x7f29c548b700) at pthread_create.c:456
        __res = <optimized out>
        pd = 0x7f29c548b700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139817380263680, -5678151494117850893, 140727950350718, 140727950350719, 139817380264384, 139817380263680, 5719762693649367283, 5721649914893205747}, 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"
#6  0x00007f2a21a09caf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97
.
Thread 1 (Thread 0x7f298bfff700 (LWP 24026)):
#0  0x00007f2a0efaa28c in WTFCrash () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#1  0x00007f2a0ff15cca in  () at /usr/lib/x86_64-linux-gnu/libwebkit2gtk-4.0.so.37
#2  0x00007f2a0ff0a82c in  () at /usr/lib/x86_64-linux-gnu/libwebkit2gtk-4.0.so.37
#3  0x00007f2a100e2463 in webkit_web_view_run_javascript () at /usr/lib/x86_64-linux-gnu/libwebkit2gtk-4.0.so.37
#4  0x00007f2a1e390e18 in ffi_call_unix64 () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#5  0x00007f2a1e39087a in ffi_call () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#6  0x00007f2a1b720de4 in  () at /usr/lib/python3/dist-packages/gi/_gi.cpython-36m-x86_64-linux-gnu.so
#7  0x00007f2a1b722998 in  () at /usr/lib/python3/dist-packages/gi/_gi.cpython-36m-x86_64-linux-gnu.so
#8  0x00007f2a1b716c39 in  () at /usr/lib/python3/dist-packages/gi/_gi.cpython-36m-x86_64-linux-gnu.so
#9  0x00000000004591b3 in _PyObject_FastCallDict ()
#10 0x000000000054e607 in  ()
#11 0x0000000000552f9b in _PyEval_EvalFrameDefault ()
#12 0x000000000054e4b1 in  ()
#13 0x000000000054e73d in  ()
#14 0x0000000000552f9b in _PyEval_EvalFrameDefault ()
#15 0x000000000054e4b1 in  ()
#16 0x000000000054e73d in  ()
#17 0x0000000000552f9b in _PyEval_EvalFrameDefault ()
#18 0x000000000054da88 in  ()
#19 0x000000000054e9e6 in  ()
#20 0x0000000000552f9b in _PyEval_EvalFrameDefault ()
#21 0x000000000054e4b1 in  ()
#22 0x000000000054f45f in PyEval_EvalCodeEx ()
#23 0x000000000048b41d in  ()
#24 0x0000000000458fbe in PyObject_Call ()
#25 0x0000000000551497 in _PyEval_EvalFrameDefault ()
#26 0x000000000054da88 in  ()
#27 0x000000000054e9e6 in  ()
#28 0x0000000000552f9b in _PyEval_EvalFrameDefault ()
#29 0x000000000054da88 in  ()
#30 0x000000000054e9e6 in  ()
#31 0x0000000000552f9b in _PyEval_EvalFrameDefault ()
#32 0x000000000054da88 in  ()
#33 0x000000000055772e in _PyFunction_FastCallDict ()
#34 0x0000000000459531 in _PyObject_Call_Prepend ()
#35 0x0000000000458fbe in PyObject_Call ()
#36 0x000000000058db52 in  ()
#37 0x00007f2a2282574a in start_thread (arg=0x7f298bfff700) at pthread_create.c:456
        __res = <optimized out>
        pd = 0x7f298bfff700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139816419194624, -5678151494117850893, 139816788271502, 139816788271503, 139816419195328, 139816419194624, 5719625072159785203, 5721649914893205747}, 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"
#38 0x00007f2a21a09caf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97