.
Thread 18 (LWP 7836):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1  0x00007f651ff8d63e in ff_thread_get_buffer () from /tmp/apport_sandbox_o6ZFF8/usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
No symbol table info available.
#2  0x00007f65d86a1900 in __elf_set___libc_thread_subfreeres_element___rpc_thread_destroy__ () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#3  0x4152e470d31bfe00 in ?? ()
No symbol table info available.
#4  0x00007f652a7a477f in ?? ()
No symbol table info available.
#5  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 17 (LWP 7834):
#0  0x00007f65d83e2f59 in syscall () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007f65d8956bcf in g_cond_wait () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f65d557baf2 in _gst_data_queue_wait_non_empty () from /tmp/apport_sandbox_o6ZFF8/usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
No symbol table info available.
#3  0x00007f65d557ce10 in gst_data_queue_pop () from /tmp/apport_sandbox_o6ZFF8/usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
No symbol table info available.
#4  0x00007f652f143377 in gst_multi_queue_loop () from /tmp/apport_sandbox_o6ZFF8/usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
No symbol table info available.
#5  0x00007f65d52adad1 in gst_task_func () from /tmp/apport_sandbox_o6ZFF8/usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
No symbol table info available.
#6  0x00007f65d89394fe in g_thread_pool_thread_proxy () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#7  0x00007f65d8938b65 in g_thread_proxy () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#8  0x00007f65d86b26ca in start_thread (arg=0x7f65158a7700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f65158a7700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140072129820416, 2603327605400943374, 0, 140072544987039, 8388608, 140073112648688, -2672099408394044658, -2671953459116360946}, 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"
#9  0x00007f65d83e8ead in clone () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
.
Thread 16 (LWP 6889):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1  0x00007f65d72ed005 in WTF::ThreadCondition::wait (this=<optimized out>, mutex=...) at ../Source/WTF/wtf/ThreadingPthreads.cpp:342
No locals.
#2  0x00007f65d72ed0bb in WTF::ThreadCondition::timedWait (this=this@entry=0x7f65b58f25d0, mutex=..., absoluteTime=absoluteTime@entry=1.7976931348623157e+308) at ../Source/WTF/wtf/ThreadingPthreads.cpp:352
        timeSeconds = <optimized out>
        timeNanoseconds = <optimized out>
        targetTime = {tv_sec = 2, tv_nsec = 140074815316064}
#3  0x00007f65dc7b8473 in waitForMessageFilteredWithTimeout<WTF::MessageQueue<DataType>::waitForMessage() [with DataType = WTF::Function<void()>]::<lambda(const WTF::Function<void()>&)> > (absoluteTime=1.7976931348623157e+308, predicate=<optimized out>, result=<synthetic pointer>, this=0x7f65b58f25a8) at ../Source/WTF/wtf/MessageQueue.h:152
        timedOut = false
        found = <optimized out>
        message = <optimized out>
#4  waitForMessage (this=0x7f65b58f25a8) at ../Source/WTF/wtf/MessageQueue.h:131
        exitReason = <optimized out>
#5  WebCore::StorageThread::threadEntryPoint (this=0x7f65b58f25a0) at ../Source/WebCore/storage/StorageThread.cpp:73
        function = <optimized out>
#6  0x00007f65d72ecb0a in WTF::wtfThreadEntryPoint (param=0x7f65b5a88f50) at ../Source/WTF/wtf/ThreadingPthreads.cpp:170
        invocation = {_M_t = {<std::_Tuple_impl<0ul, WTF::ThreadFunctionInvocation*, std::default_delete<WTF::ThreadFunctionInvocation> >> = {<std::_Tuple_impl<1ul, std::default_delete<WTF::ThreadFunctionInvocation> >> = {<std::_Head_base<1ul, std::default_delete<WTF::ThreadFunctionInvocation>, true>> = {<std::default_delete<WTF::ThreadFunctionInvocation>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0ul, WTF::ThreadFunctionInvocation*, false>> = {_M_head_impl = 0x7f65b5a88f50}, <No data fields>}, <No data fields>}}
#7  0x00007f65d86b26ca in start_thread (arg=0x7f6557fff700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f6557fff700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140073244817152, 2603327605400943374, 0, 140730356285359, 8388608, 45858528, -2672236198807454962, -2671953459116360946}, 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  0x00007f65d83e8ead in clone () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
.
Thread 15 (LWP 5741):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1  0x00007f656b77ad39 in ?? () from /tmp/apport_sandbox_o6ZFF8/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64/IcedTeaPlugin.so
No symbol table info available.
#2  0x00007f656b77b5c9 in ?? () from /tmp/apport_sandbox_o6ZFF8/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64/IcedTeaPlugin.so
No symbol table info available.
#3  0x00007f65d86b26ca in start_thread (arg=0x7f6569ed4700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f6569ed4700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140073545582336, 2603327605400943374, 0, 140730356278975, 140073545583040, 40330688, -2672266870779528434, -2671953459116360946}, 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"
#4  0x00007f65d83e8ead in clone () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
.
Thread 14 (LWP 5740):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1  0x00007f656b77ad39 in ?? () from /tmp/apport_sandbox_o6ZFF8/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64/IcedTeaPlugin.so
No symbol table info available.
#2  0x00007f656b77b5c9 in ?? () from /tmp/apport_sandbox_o6ZFF8/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64/IcedTeaPlugin.so
No symbol table info available.
#3  0x00007f65d86b26ca in start_thread (arg=0x7f656a6d5700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f656a6d5700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140073553975040, 2603327605400943374, 0, 140730356278975, 140073553975744, 40330688, -2672265770731029746, -2671953459116360946}, 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"
#4  0x00007f65d83e8ead in clone () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
.
Thread 13 (LWP 7839):
#0  0x00007f65d83e2f59 in syscall () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007f65d8956cea in g_cond_wait_until () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f65d88e6929 in g_async_queue_pop_intern_unlocked () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f65d88e6f4b in g_async_queue_timeout_pop () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f65d89395ba in g_thread_pool_thread_proxy () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f65d8938b65 in g_thread_proxy () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#6  0x00007f65d86b26ca in start_thread (arg=0x7f652a7a7700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f652a7a7700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140072481093376, 2603327605400943374, 0, 140730356290255, 8388608, 63862416, -2672125109478343922, -2671953459116360946}, 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  0x00007f65d83e8ead in clone () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
.
Thread 12 (LWP 5739):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1  0x00007f656b77ad39 in ?? () from /tmp/apport_sandbox_o6ZFF8/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64/IcedTeaPlugin.so
No symbol table info available.
#2  0x00007f656b77b5c9 in ?? () from /tmp/apport_sandbox_o6ZFF8/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64/IcedTeaPlugin.so
No symbol table info available.
#3  0x00007f65d86b26ca in start_thread (arg=0x7f656aed6700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f656aed6700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140073562367744, 2603327605400943374, 0, 140730356278975, 140073562368448, 40330688, -2672264670682531058, -2671953459116360946}, 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"
#4  0x00007f65d83e8ead in clone () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
.
Thread 11 (LWP 7838):
#0  0x00007f65d83e2f59 in syscall () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007f65d8956bcf in g_cond_wait () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f652f146b5e in gst_queue_loop () from /tmp/apport_sandbox_o6ZFF8/usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
No symbol table info available.
#3  0x00007f65d52adad1 in gst_task_func () from /tmp/apport_sandbox_o6ZFF8/usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
No symbol table info available.
#4  0x00007f65d89394fe in g_thread_pool_thread_proxy () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f65d8938b65 in g_thread_proxy () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#6  0x00007f65d86b26ca in start_thread (arg=0x7f652dc97700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f652dc97700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140072536602368, 2603327605400943374, 0, 140072129808255, 8388608, 60304704, -2672117576105706738, -2671953459116360946}, 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  0x00007f65d83e8ead in clone () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
.
Thread 10 (LWP 5736):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1  0x00007f65d72ed005 in WTF::ThreadCondition::wait (this=<optimized out>, mutex=...) at ../Source/WTF/wtf/ThreadingPthreads.cpp:342
No locals.
#2  0x00007f65dc4977ec in WebCore::IconDatabase::syncThreadMainLoop (this=0x7f65b5451c00) at ../Source/WebCore/loader/icon/IconDatabase.cpp:1435
        didAnyWork = <optimized out>
        disableSuddenTermination = {_M_t = {<std::_Tuple_impl<0ul, WebCore::SuddenTerminationDisabler*, std::default_delete<WebCore::SuddenTerminationDisabler> >> = {<std::_Tuple_impl<1ul, std::default_delete<WebCore::SuddenTerminationDisabler> >> = {<std::_Head_base<1ul, std::default_delete<WebCore::SuddenTerminationDisabler>, true>> = {<std::default_delete<WebCore::SuddenTerminationDisabler>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0ul, WebCore::SuddenTerminationDisabler*, false>> = {_M_head_impl = 0x0}, <No data fields>}, <No data fields>}}
#3  0x00007f65dc498d28 in WebCore::IconDatabase::iconDatabaseSyncThread (this=0x7f65b5451c00) at ../Source/WebCore/loader/icon/IconDatabase.cpp:1041
        journalFilename = {m_impl = {m_ptr = 0x7f65b545cf60}}
#4  0x00007f65d72ecb0a in WTF::wtfThreadEntryPoint (param=0x7f65b544e1e0) at ../Source/WTF/wtf/ThreadingPthreads.cpp:170
        invocation = {_M_t = {<std::_Tuple_impl<0ul, WTF::ThreadFunctionInvocation*, std::default_delete<WTF::ThreadFunctionInvocation> >> = {<std::_Tuple_impl<1ul, std::default_delete<WTF::ThreadFunctionInvocation> >> = {<std::_Head_base<1ul, std::default_delete<WTF::ThreadFunctionInvocation>, true>> = {<std::default_delete<WTF::ThreadFunctionInvocation>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0ul, WTF::ThreadFunctionInvocation*, false>> = {_M_head_impl = 0x7f65b544e1e0}, <No data fields>}, <No data fields>}}
#5  0x00007f65d86b26ca in start_thread (arg=0x7f65b5439700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f65b5439700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140074809530112, 2603327605400943374, 0, 140730356283679, 140074809530816, 140075464201968, -2671890027664622834, -2671953459116360946}, 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  0x00007f65d83e8ead in clone () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
.
Thread 9 (LWP 7837):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1  0x00007f651ff8d63e in ff_thread_get_buffer () from /tmp/apport_sandbox_o6ZFF8/usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
No symbol table info available.
#2  0x00007f65d86a1900 in __elf_set___libc_thread_subfreeres_element___rpc_thread_destroy__ () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#3  0x4152e470d31bfe00 in ?? ()
No symbol table info available.
#4  0x00007ffe56e552cf in ?? ()
No symbol table info available.
#5  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 8 (LWP 5735):
#0  0x00007f65d83adafd in nanosleep () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007f65d83ada4a in sleep () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#2  0x00007f65d72d4470 in WTF::TCMalloc_PageHeap::scavengerThread (this=0x7f65d75dfb60 <WTF::pageheap_memory>) at ../Source/WTF/wtf/FastMalloc.cpp:2891
No locals.
#3  0x00007f65d72d4509 in WTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../Source/WTF/wtf/FastMalloc.cpp:2048
No locals.
#4  0x00007f65d86b26ca in start_thread (arg=0x7f65c4d76700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f65c4d76700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140075070875392, 2603327605400943374, 0, 140730356283487, 8388608, 32152048, -2671926484957644018, -2671953459116360946}, 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  0x00007f65d83e8ead in clone () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
.
Thread 7 (LWP 7833):
#0  0x00007f65d83e2f59 in syscall () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007f65d8956bcf in g_cond_wait () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f65d60c00d5 in gst_app_src_create () from /tmp/apport_sandbox_o6ZFF8/usr/lib/x86_64-linux-gnu/libgstapp-1.0.so.0
No symbol table info available.
#3  0x00007f65d5565e06 in gst_base_src_get_range () from /tmp/apport_sandbox_o6ZFF8/usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
No symbol table info available.
#4  0x00007f65d55679e7 in gst_base_src_loop () from /tmp/apport_sandbox_o6ZFF8/usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
No symbol table info available.
#5  0x00007f65d52adad1 in gst_task_func () from /tmp/apport_sandbox_o6ZFF8/usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
No symbol table info available.
#6  0x00007f65d89394fe in g_thread_pool_thread_proxy () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#7  0x00007f65d8938b65 in g_thread_proxy () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#8  0x00007f65d86b26ca in start_thread (arg=0x7f652e498700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f652e498700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140072544995072, 2603327605400943374, 0, 140072519804799, 8388608, 56953792, -2672116476057208050, -2671953459116360946}, 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"
#9  0x00007f65d83e8ead in clone () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
.
Thread 6 (LWP 5744):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1  0x00007f65d2c7889c in __gthread_cond_wait (__mutex=<optimized out>, __cond=__cond@entry=0x7f65b54b3008) at /build/gcc-5-qzOywW/gcc-5-5.3.1/build/x86_64-linux-gnu/libstdc++-v3/include/x86_64-linux-gnu/bits/gthr-default.h:864
No locals.
#2  std::condition_variable::wait (this=this@entry=0x7f65b54b3008, __lock=...) at ../../../../../src/libstdc++-v3/src/c++11/condition_variable.cc:53
        __e = <optimized out>
#3  0x00007f65d700cd1b in wait<JSC::GCThread::waitForNextPhase()::<lambda()> > (__p=..., __lock=..., this=0x7f65b54b3008) at /usr/include/c++/5/condition_variable:98
No locals.
#4  JSC::GCThread::waitForNextPhase (this=this@entry=0x2663440) at ../Source/JavaScriptCore/heap/GCThread.cpp:79
        lock = {_M_device = 0x7f65b54b2fe0, _M_owns = true}
#5  0x00007f65d700ce08 in JSC::GCThread::gcThreadMain (this=0x2663440) at ../Source/JavaScriptCore/heap/GCThread.cpp:97
        enabler = {m_stack = @0x2618550}
        currentPhase = <optimized out>
#6  0x00007f65d72ecb0a in WTF::wtfThreadEntryPoint (param=0x7f65b544e190) at ../Source/WTF/wtf/ThreadingPthreads.cpp:170
        invocation = {_M_t = {<std::_Tuple_impl<0ul, WTF::ThreadFunctionInvocation*, std::default_delete<WTF::ThreadFunctionInvocation> >> = {<std::_Tuple_impl<1ul, std::default_delete<WTF::ThreadFunctionInvocation> >> = {<std::_Head_base<1ul, std::default_delete<WTF::ThreadFunctionInvocation>, true>> = {<std::default_delete<WTF::ThreadFunctionInvocation>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0ul, WTF::ThreadFunctionInvocation*, false>> = {_M_head_impl = 0x7f65b544e190}, <No data fields>}, <No data fields>}}
#7  0x00007f65d86b26ca in start_thread (arg=0x7f6568380700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f6568380700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140073516926720, 2603327605400943374, 0, 140730356288383, 140073516927424, 140074810027728, -2672269802094707954, -2671953459116360946}, 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  0x00007f65d83e8ead in clone () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
.
Thread 5 (LWP 5728):
#0  0x00007f65d83dd19d in poll () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007f65d891231c in g_main_context_iterate.isra () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f65d89126a2 in g_main_loop_run () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f65d8f10906 in gdbus_shared_thread_func () from /tmp/apport_sandbox_o6ZFF8/usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007f65d8938b65 in g_thread_proxy () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f65d86b26ca in start_thread (arg=0x7f65c6e66700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f65c6e66700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140075105412864, 2603327605400943374, 0, 140075122194495, 140075105413568, 140074989722992, -2671921666004337906, -2671953459116360946}, 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  0x00007f65d83e8ead in clone () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
.
Thread 4 (LWP 5743):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
No locals.
#1  0x00007f65d700b7d8 in __gthread_cond_timedwait (__abs_timeout=0x7f6568b80b00, __mutex=<optimized out>, __cond=0x7f65b54a9250) at /usr/include/x86_64-linux-gnu/c++/5/bits/gthr-default.h:871
No locals.
#2  __wait_until_impl<std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (__atime=..., __lock=..., this=0x7f65b54a9250) at /usr/include/c++/5/condition_variable:165
        __ts = {tv_sec = 1458631165, tv_nsec = 844255541}
#3  wait_until<std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (__atime=..., __lock=..., this=0x7f65b54a9250) at /usr/include/c++/5/condition_variable:105
No locals.
#4  wait_for<long, std::ratio<1l, 1000l> > (__rtime=<synthetic pointer>, __lock=..., this=0x7f65b54a9250) at /usr/include/c++/5/condition_variable:137
No locals.
#5  JSC::BlockAllocator::waitForDuration (this=this@entry=0x7f65b54a9078, duration=duration@entry=...) at ../Source/JavaScriptCore/heap/BlockAllocator.cpp:114
        lock = {_M_device = 0x7f65b54a9228, _M_owns = true}
#6  0x00007f65d700b8a3 in JSC::BlockAllocator::blockFreeingThreadMain (this=0x7f65b54a9078) at ../Source/JavaScriptCore/heap/BlockAllocator.cpp:128
No locals.
#7  0x00007f65d72ecb0a in WTF::wtfThreadEntryPoint (param=0x7f65b544e1a0) at ../Source/WTF/wtf/ThreadingPthreads.cpp:170
        invocation = {_M_t = {<std::_Tuple_impl<0ul, WTF::ThreadFunctionInvocation*, std::default_delete<WTF::ThreadFunctionInvocation> >> = {<std::_Tuple_impl<1ul, std::default_delete<WTF::ThreadFunctionInvocation> >> = {<std::_Head_base<1ul, std::default_delete<WTF::ThreadFunctionInvocation>, true>> = {<std::default_delete<WTF::ThreadFunctionInvocation>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0ul, WTF::ThreadFunctionInvocation*, false>> = {_M_head_impl = 0x7f65b544e1a0}, <No data fields>}, <No data fields>}}
#8  0x00007f65d86b26ca in start_thread (arg=0x7f6568b81700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f6568b81700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140073525319424, 2603327605400943374, 0, 140730356288479, 140073525320128, 40897552, -2672268616146863346, -2671953459116360946}, 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"
#9  0x00007f65d83e8ead in clone () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
.
Thread 3 (LWP 5726):
#0  0x00007f65d83dd19d in poll () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007f65d891231c in g_main_context_iterate.isra () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f65d891242c in g_main_context_iteration () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f65c7e7028d in ?? () from /tmp/apport_sandbox_o6ZFF8/usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
No symbol table info available.
#4  0x00007f65d8938b65 in g_thread_proxy () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f65d86b26ca in start_thread (arg=0x7f65c7e68700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f65c7e68700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140075122198272, 2603327605400943374, 0, 140730356289807, 140075122198976, 31483440, -2671919465907340530, -2671953459116360946}, 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  0x00007f65d83e8ead in clone () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
.
Thread 2 (LWP 5727):
#0  0x00007f65d83dd19d in poll () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007f65d891231c in g_main_context_iterate.isra () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f65d891242c in g_main_context_iteration () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f65d8912469 in glib_worker_main () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f65d8938b65 in g_thread_proxy () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f65d86b26ca in start_thread (arg=0x7f65c7667700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f65c7667700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140075113805568, 2603327605400943374, 0, 140075122194143, 140075113806272, 0, -2671920565955839218, -2671953459116360946}, 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  0x00007f65d83e8ead in clone () from /tmp/apport_sandbox_o6ZFF8/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
.
Thread 1 (LWP 5724):
#0  operator-> (this=0xffffffff) at ../Source/JavaScriptCore/runtime/WriteBarrier.h:123
No locals.
#1  isString (this=0xffffffff) at ../Source/JavaScriptCore/runtime/JSCellInlines.h:124
No locals.
#2  JSC::JSCell::toPrimitive (this=0xffffffff, exec=exec@entry=0x7f6567b7fb58, preferredType=preferredType@entry=JSC::PreferString) at ../Source/JavaScriptCore/runtime/JSCell.cpp:128
No locals.
#3  0x00007f65d721a33b in JSC::JSValue::toStringSlowCase (this=<optimized out>, exec=0x7f6567b7fb58) at ../Source/JavaScriptCore/runtime/JSCJSValue.cpp:312
        value = {static numberOfInt52Bits = 52, static int52ShiftAmount = 12, u = {asInt64 = 0, ptr = 0x0, asBits = {payload = 0, tag = 0}}}
#4  0x00007f65d7085d65 in JSC::getByVal (exec=0x7f6567b7fb58, baseValue=..., subscript=..., returnAddress=...) at ../Source/JavaScriptCore/jit/JITOperations.cpp:1383
        property = {m_string = {m_impl = {m_ptr = 0x7f65652702d0}}}
#5  0x00007f65d7086242 in JSC::operationGetByValGeneric (exec=<optimized out>, encodedBase=<optimized out>, encodedSubscript=<optimized out>) at ../Source/JavaScriptCore/jit/JITOperations.cpp:1396
        result = <optimized out>
#6  0x00007f656cd7ea5e in ?? ()
No symbol table info available.
#7  0x0000000000000000 in ?? ()
No symbol table info available.