.
Thread 7 (LWP 30390):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1  0x00007fab9f8b16a0 in PR_WaitCondVar (cvar=0x3c51630, timeout=4294967295) at ptsynch.c:396
        rv = <optimized out>
        thred = 0x3cfaa00
#2  0x00007faba8f69c76 in js::SourceCompressorThread::compressorThread(void*) () from /tmp/apport_sandbox_Ypcjlo/usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
No symbol table info available.
#3  0x00007fab9f8b7088 in _pt_root (arg=0x3cfaa00) at ptthread.c:216
        rv = <optimized out>
        thred = 0x3cfaa00
        detached = 0
        id = 140374546827008
        tid = 30390
#4  0x00007fabad4206fa in start_thread (arg=0x7fab7effc700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7fab7effc700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140374546827008, -8655104351376633449, 0, 140722827766911, 140374546827712, 1, 8697604876114465175, 8698068223254860183}, 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  0x00007fabad156b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
No locals.
.
Thread 6 (LWP 30134):
#0  0x00007fabad14ae8d in poll () at ../sysdeps/unix/syscall-template.S:84
No locals.
#1  0x00007fabad68039c in g_main_context_iterate.isra () from /tmp/apport_sandbox_Ypcjlo/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007fabad680722 in g_main_loop_run () from /tmp/apport_sandbox_Ypcjlo/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fabade8b916 in gdbus_shared_thread_func () from /tmp/apport_sandbox_Ypcjlo/usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007fabad6a6bc5 in g_thread_proxy () from /tmp/apport_sandbox_Ypcjlo/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007fabad4206fa in start_thread (arg=0x7fab9222b700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7fab9222b700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140374867883776, -8655104351376633449, 0, 140722827765679, 140374867884480, 63181136, 8698069600702697879, 8698068223254860183}, 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  0x00007fabad156b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
No locals.
.
Thread 5 (LWP 30389):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1  0x00007fab9f8b16a0 in PR_WaitCondVar (cvar=0x3dfcae0, timeout=4294967295) at ptsynch.c:396
        rv = <optimized out>
        thred = 0x3db6850
#2  0x00007faba8ef691e in js::GCHelperThread::threadLoop() () from /tmp/apport_sandbox_Ypcjlo/usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
No symbol table info available.
#3  0x00007fab9f8b7088 in _pt_root (arg=0x3db6850) at ptthread.c:216
        rv = <optimized out>
        thred = 0x3db6850
        detached = 0
        id = 140374555219712
        tid = 30389
#4  0x00007fabad4206fa in start_thread (arg=0x7fab7f7fd700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7fab7f7fd700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140374555219712, -8655104351376633449, 0, 140722827766879, 140374555220416, 1, 8697605975089222039, 8698068223254860183}, 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  0x00007fabad156b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
No locals.
.
Thread 4 (LWP 30329):
#0  0x00007fabad14ae8d in poll () at ../sysdeps/unix/syscall-template.S:84
No locals.
#1  0x00007faba94d5201 in poll (__timeout=-1, __nfds=3, __fds=0x7fab78006c60) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
No locals.
#2  poll_func (ufds=0x7fab78006c60, nfds=3, timeout=-1, userdata=0x3d49d10) at pulse/thread-mainloop.c:69
        mutex = 0x3d49d10
#3  0x00007faba94c6a01 in pa_mainloop_poll (m=m@entry=0x3de88e0) at pulse/mainloop.c:844
        __func__ = "pa_mainloop_poll"
        __PRETTY_FUNCTION__ = "pa_mainloop_poll"
#4  0x00007faba94c70ae in pa_mainloop_iterate (m=0x3de88e0, block=<optimized out>, retval=0x0) at pulse/mainloop.c:926
        r = 0
#5  0x00007faba94c7160 in pa_mainloop_run (m=0x3de88e0, retval=retval@entry=0x0) at pulse/mainloop.c:944
        r = <optimized out>
#6  0x00007faba94d5149 in thread (userdata=0x3d49d60) at pulse/thread-mainloop.c:100
        m = 0x3d49d60
        mask = {__val = {18446744067267100671, 18446744073709551615 <repeats 15 times>}}
        prev_mask = {__val = {0, 4629771061636907072, 6582955728264977243, 6582955728264977243, 2314885530818453536, 2314885530818453536, 140722827769072, 140374429403328, 140374563612312, 0, 140722827768079, 140374563613120, 140722827769072, 140375319460540, 64857936, 0}}
        sa = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction = 0x0}, sa_mask = {__val = {0, 0, 0, 0, 0, 140375374762840, 140374563609040, 0, 30, 140374563609344, 0, 31, 0, 0, 140722827768079, 64265568}}, sa_flags = 0, sa_restorer = 0x0}
#7  0x00007fab9fd28678 in internal_thread_func (userdata=0x3ce6640) at pulsecore/thread-posix.c:81
        t = 0x3ce6640
#8  0x00007fabad4206fa in start_thread (arg=0x7fab7fffe700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7fab7fffe700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140374563612416, -8655104351376633449, 0, 140722827768079, 140374563613120, 140722827769072, 8697607074063978903, 8698068223254860183}, 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  0x00007fabad156b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
No locals.
.
Thread 3 (LWP 30222):
#0  0x00007fabad14ae8d in poll () at ../sysdeps/unix/syscall-template.S:84
No locals.
#1  0x00007fabad68039c in g_main_context_iterate.isra () from /tmp/apport_sandbox_Ypcjlo/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007fabad6804ac in g_main_context_iteration () from /tmp/apport_sandbox_Ypcjlo/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fab9102428d in ?? () from /tmp/apport_sandbox_Ypcjlo/usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
No symbol table info available.
#4  0x00007fabad6a6bc5 in g_thread_proxy () from /tmp/apport_sandbox_Ypcjlo/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007fabad4206fa in start_thread (arg=0x7fab9101c700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7fab9101c700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140374848947968, -8655104351376633449, 0, 140722827766623, 140374848948672, 63265504, 8698076446343696791, 8698068223254860183}, 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  0x00007fabad156b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
No locals.
.
Thread 2 (LWP 29861):
#0  0x00007fabad14ae8d in poll () at ../sysdeps/unix/syscall-template.S:84
No locals.
#1  0x00007fabad68039c in g_main_context_iterate.isra () from /tmp/apport_sandbox_Ypcjlo/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007fabad6804ac in g_main_context_iteration () from /tmp/apport_sandbox_Ypcjlo/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fabad6804e9 in glib_worker_main () from /tmp/apport_sandbox_Ypcjlo/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007fabad6a6bc5 in g_thread_proxy () from /tmp/apport_sandbox_Ypcjlo/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007fabad4206fa in start_thread (arg=0x7fab98a1c700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7fab98a1c700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140374976874240, -8655104351376633449, 0, 140722827768191, 140374976874944, 0, 8698092664140206487, 8698068223254860183}, 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  0x00007fabad156b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
No locals.
.
Thread 1 (LWP 29848):
#0  0x00007fabad085418 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
        resultvar = 0
        pid = 29848
        selftid = 29848
#1  0x00007fabad08701a in __GI_abort () at abort.c:89
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x2020202020202020, sa_sigaction = 0x2020202020202020}, sa_mask = {__val = {7219024050048213024, 7092923592486186354, 7306008615358522730, 3966027933028738412, 3906932258180850022, 7089059675625238576, 3472328326427062370, 3472310980132172320, 3467824696600309808, 729636054439574064, 4050478113981818423, 7018357736525017143, 3472338226292744802, 3467895053655089200, 2319406791620833328, 2319389199435444272}}, sa_flags = 1634088714, sa_restorer = 0x55}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007fabad0c772a in __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7fabad1e06b0 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175
        ap = <error reading variable ap (Attempt to dereference a generic pointer.)>
        fd = 2
        on_2 = <optimized out>
        list = <optimized out>
        nlist = <optimized out>
        cp = <optimized out>
        written = <optimized out>
#3  0x00007fabad0cff4a in malloc_printerr (ar_ptr=<optimized out>, ptr=<optimized out>, str=0x7fabad1dd48f "free(): invalid pointer", action=3) at malloc.c:5007
        buf = "00000000082dcf30"
        cp = <optimized out>
        ar_ptr = <optimized out>
        str = 0x7fabad1dd48f "free(): invalid pointer"
        action = 3
#4  _int_free (av=<optimized out>, p=<optimized out>, have_lock=0) at malloc.c:3868
        size = <optimized out>
        fb = <optimized out>
        nextchunk = <optimized out>
        nextsize = <optimized out>
        nextinuse = <optimized out>
        prevsize = <optimized out>
        bck = <optimized out>
        fwd = <optimized out>
        errstr = <optimized out>
        locked = <optimized out>
#5  0x00007fabad0d3abc in __GI___libc_free (mem=<optimized out>) at malloc.c:2969
        ar_ptr = <optimized out>
        p = <optimized out>
        hook = <optimized out>
#6  0x00007fabad69ff39 in g_strfreev () from /tmp/apport_sandbox_Ypcjlo/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#7  0x00007fabade30f2d in g_themed_icon_finalize () from /tmp/apport_sandbox_Ypcjlo/usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#8  0x00007fabad95bd9a in g_object_unref () from /tmp/apport_sandbox_Ypcjlo/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#9  0x00007fab728ea92c in desktop_entry_unref () from /tmp/apport_sandbox_Ypcjlo/usr/lib/x86_64-linux-gnu/libgnome-menu-3.so.0
No symbol table info available.
#10 0x00007fabad69e0ad in g_slist_foreach () from /tmp/apport_sandbox_Ypcjlo/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#11 0x00007fab728eb5b2 in cached_dir_free () from /tmp/apport_sandbox_Ypcjlo/usr/lib/x86_64-linux-gnu/libgnome-menu-3.so.0
No symbol table info available.
#12 0x00007fabad69e0ad in g_slist_foreach () from /tmp/apport_sandbox_Ypcjlo/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#13 0x00007fab728eb5d5 in cached_dir_free () from /tmp/apport_sandbox_Ypcjlo/usr/lib/x86_64-linux-gnu/libgnome-menu-3.so.0
No symbol table info available.
#14 0x00007fabad69e0ad in g_slist_foreach () from /tmp/apport_sandbox_Ypcjlo/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#15 0x00007fab728eb5d5 in cached_dir_free () from /tmp/apport_sandbox_Ypcjlo/usr/lib/x86_64-linux-gnu/libgnome-menu-3.so.0
No symbol table info available.
#16 0x00007fabad69e0ad in g_slist_foreach () from /tmp/apport_sandbox_Ypcjlo/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#17 0x00007fab728eb5d5 in cached_dir_free () from /tmp/apport_sandbox_Ypcjlo/usr/lib/x86_64-linux-gnu/libgnome-menu-3.so.0
No symbol table info available.
#18 0x00007fab728eb82e in cached_dir_remove_reference () from /tmp/apport_sandbox_Ypcjlo/usr/lib/x86_64-linux-gnu/libgnome-menu-3.so.0
No symbol table info available.
#19 0x00007fab728eb89e in emit_monitors_in_idle () from /tmp/apport_sandbox_Ypcjlo/usr/lib/x86_64-linux-gnu/libgnome-menu-3.so.0
No symbol table info available.
#20 0x00007fabad68005a in g_main_context_dispatch () from /tmp/apport_sandbox_Ypcjlo/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#21 0x00007fabad680400 in g_main_context_iterate.isra () from /tmp/apport_sandbox_Ypcjlo/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#22 0x00007fabad680722 in g_main_loop_run () from /tmp/apport_sandbox_Ypcjlo/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#23 0x00007fabaf03269c in meta_run () from /tmp/apport_sandbox_Ypcjlo/usr/lib/libmutter.so.0
No symbol table info available.
#24 0x0000000000402197 in main ()
No symbol table info available.