.
Thread 4 (Thread 0xb1985b40 (LWP 1709)):
#0  0xb7779424 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb74dc160 in __GI___poll (fds=fds@entry=0xb1000c68, nfds=nfds@entry=1, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = -516
        result = <optimized out>
#2  0xb7156a3b in g_poll (fds=0xb1000c68, nfds=1, timeout=-1) at /build/buildd/glib2.0-2.33.8/./glib/gpoll.c:132
No locals.
#3  0xb7148290 in g_main_context_poll (n_fds=1, fds=0xb1000c68, timeout=<optimized out>, context=0x8735400, priority=<optimized out>) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:3576
        poll_func = <optimized out>
#4  g_main_context_iterate (context=context@entry=0x8735400, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:3277
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = <optimized out>
        fds = 0xb1000c68
#5  0xb71483f1 in g_main_context_iteration (context=context@entry=0x8735400, may_block=may_block@entry=1) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:3343
        retval = <optimized out>
#6  0xb198b8b0 in dconf_gdbus_worker_thread (user_data=0x8735400) at dconf-gdbus-thread.c:81
        context = 0x8735400
#7  0xb716cc03 in g_thread_proxy (data=0x8733400) at /build/buildd/glib2.0-2.33.8/./glib/gthread.c:801
        thread = 0x8733400
#8  0xb73ebd4c in start_thread (arg=0xb1985b40) at pthread_create.c:308
        __res = <optimized out>
        pd = 0xb1985b40
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {-1220554752, 0, 4001536, -1315417112, 464371238, 1450280491}, 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  0xb74ea8ae in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130
No locals.
.
Thread 3 (Thread 0xb2343b40 (LWP 1708)):
#0  0xb7779424 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb74dc160 in __GI___poll (fds=fds@entry=0xb1a07db8, nfds=nfds@entry=9, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = -516
        result = <optimized out>
#2  0xb7156a3b in g_poll (fds=0xb1a07db8, nfds=9, timeout=-1) at /build/buildd/glib2.0-2.33.8/./glib/gpoll.c:132
No locals.
#3  0xb7148290 in g_main_context_poll (n_fds=9, fds=0xb1a07db8, timeout=<optimized out>, context=0x8725610, priority=<optimized out>) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:3576
        poll_func = <optimized out>
#4  g_main_context_iterate (context=0x8725610, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:3277
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 9
        allocated_nfds = <optimized out>
        fds = 0xb1a07db8
#5  0xb714876b in g_main_loop_run (loop=0x87255d8) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:3476
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#6  0xb62a759a in gdbus_shared_thread_func (user_data=0x87255f8) at /build/buildd/glib2.0-2.33.8/./gio/gdbusprivate.c:277
        data = 0x87255f8
#7  0xb716cc03 in g_thread_proxy (data=0x8727120) at /build/buildd/glib2.0-2.33.8/./glib/gthread.c:801
        thread = 0x8727120
#8  0xb73ebd4c in start_thread (arg=0xb2343b40) at pthread_create.c:308
        __res = <optimized out>
        pd = 0xb2343b40
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {-1220554752, 0, 4001536, -1305201688, 1131265569, 1450280491}, 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  0xb74ea8ae in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130
No locals.
.
Thread 2 (Thread 0xb6fd2b40 (LWP 1603)):
#0  0xb7779424 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb74dc160 in __GI___poll (fds=fds@entry=0xb6600478, nfds=nfds@entry=1, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = -516
        result = <optimized out>
#2  0xb7156a3b in g_poll (fds=0xb6600478, nfds=1, timeout=-1) at /build/buildd/glib2.0-2.33.8/./glib/gpoll.c:132
No locals.
#3  0xb7148290 in g_main_context_poll (n_fds=1, fds=0xb6600478, timeout=<optimized out>, context=0x841e700, priority=<optimized out>) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:3576
        poll_func = <optimized out>
#4  g_main_context_iterate (context=context@entry=0x841e700, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:3277
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = <optimized out>
        fds = 0xb6600478
#5  0xb71483f1 in g_main_context_iteration (context=0x841e700, may_block=may_block@entry=1) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:3343
        retval = <optimized out>
#6  0xb714845e in glib_worker_main (data=0x0) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:5019
No locals.
#7  0xb716cc03 in g_thread_proxy (data=0x841e800) at /build/buildd/glib2.0-2.33.8/./glib/gthread.c:801
        thread = 0x841e800
#8  0xb73ebd4c in start_thread (arg=0xb6fd2b40) at pthread_create.c:308
        __res = <optimized out>
        pd = 0xb6fd2b40
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {-1220554752, 0, 4001536, -1224924184, -783434200, 1450280491}, 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  0xb74ea8ae in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130
No locals.
.
Thread 1 (Thread 0xb6fd4980 (LWP 1602)):
#0  0xb4b2f2eb in ?? ()
No symbol table info available.
#1  0x09503ac0 in ?? ()
No symbol table info available.
#2  0xb437a5c2 in ?? ()
No symbol table info available.
#3  0x08809e10 in ?? ()
No symbol table info available.
Backtrace stopped: previous frame inner to this frame (corrupt stack?)