.
Thread 4 (Thread 0xb57ffb70 (LWP 2513)):
#0  0xb7791424 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb6ffc7ac in __lll_unlock_wake () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/lowlevellock.S:384
No locals.
#2  0xb6ff8e07 in _L_unlock_642 () from /tmp/tmpkFkNGT/lib/i386-linux-gnu/libpthread.so.0
No locals.
#3  0xb6ff8d4a in __pthread_mutex_unlock_usercnt (mutex=0x99594c8, decr=1) at pthread_mutex_unlock.c:52
        type = <optimized out>
        __PRETTY_FUNCTION__ = "__pthread_mutex_unlock_usercnt"
#4  0xb701f811 in g_async_queue_unlock (queue=0x995aea0) at /build/buildd/glib2.0-2.30.0/./glib/gasyncqueue.c:260
        __PRETTY_FUNCTION__ = "g_async_queue_unlock"
#5  0xb7076a1b in g_thread_pool_thread_proxy (data=0x995ac58) at /build/buildd/glib2.0-2.30.0/./glib/gthreadpool.c:316
        task = 0x99559b0
        pool = 0x995ac58
#6  0xb70745f4 in g_thread_create_proxy (data=0x995e3b8) at /build/buildd/glib2.0-2.30.0/./glib/gthread.c:1962
        thread = 0x995e3b8
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#7  0xb6ff5d31 in start_thread (arg=0xb57ffb70) at pthread_create.c:304
        __res = <optimized out>
        pd = 0xb57ffb70
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {-1224708108, 0, 4001536, -1249905928, 1300510602, 1289360781}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        robust = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#8  0xb6f440ce in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130
No locals.
Backtrace stopped: Not enough registers or memory available to unwind further
.
Thread 3 (Thread 0xb4ffeb70 (LWP 2514)):
#0  0xb7791424 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb6ff9e04 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_timedwait.S:236
No locals.
#2  0xb6963021 in g_cond_timed_wait_posix_impl (cond=0x995d510, entered_mutex=0x99594c8, abs_time=0xb4ffe188) at /build/buildd/glib2.0-2.30.0/./gthread/gthread-posix.c:242
        result = <optimized out>
        end_time = {tv_sec = 1319053016, tv_nsec = 356948000}
        timed_out = <optimized out>
        __PRETTY_FUNCTION__ = "g_cond_timed_wait_posix_impl"
#3  0xb701f3f0 in g_async_queue_pop_intern_unlocked (queue=0x995aea0, try=<optimized out>, end_time=0xb4ffe188) at /build/buildd/glib2.0-2.30.0/./glib/gasyncqueue.c:415
        retval = <optimized out>
        __PRETTY_FUNCTION__ = "g_async_queue_pop_intern_unlocked"
#4  0xb7076a6b in g_thread_pool_wait_for_new_task (pool=0x995ac58) at /build/buildd/glib2.0-2.30.0/./glib/gthreadpool.c:274
        end_time = {tv_sec = 1319053016, tv_usec = 356948}
        task = <optimized out>
#5  g_thread_pool_thread_proxy (data=0x995ac58) at /build/buildd/glib2.0-2.30.0/./glib/gthreadpool.c:308
        task = 0xb4ffe188
        pool = 0x995ac58
#6  0xb70745f4 in g_thread_create_proxy (data=0x995ae70) at /build/buildd/glib2.0-2.30.0/./glib/gthread.c:1962
        thread = 0x995ae70
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#7  0xb6ff5d31 in start_thread (arg=0xb4ffeb70) at pthread_create.c:304
        __res = <optimized out>
        pd = 0xb4ffeb70
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {-1224708108, 0, 4001536, -1258298632, 1302607753, 1289360781}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        robust = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#8  0xb6f440ce in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130
No locals.
Backtrace stopped: Not enough registers or memory available to unwind further
.
Thread 2 (Thread 0xb61b7b70 (LWP 3114)):
#0  0xb7791424 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb6f3540e in __GI___poll (fds=0xb5801568, nfds=5, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = -516
        result = <optimized out>
#2  0xb705c34b in g_poll (fds=0xb5801568, nfds=5, timeout=-1) at /build/buildd/glib2.0-2.30.0/./glib/gpoll.c:132
No locals.
#3  0xb704d896 in g_main_context_poll (n_fds=5, fds=0xb5801568, timeout=<optimized out>, context=0x9958140, priority=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3402
        poll_func = 0xb705c320 <g_poll>
#4  g_main_context_iterate (context=0x9958140, block=-1224359136, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3084
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 5
        allocated_nfds = <optimized out>
        fds = 0xb5801568
#5  0xb704df9b in g_main_loop_run (loop=0x9958118) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3297
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#6  0xb7212cea in gdbus_shared_thread_func (user_data=0x9958128) at /build/buildd/glib2.0-2.30.0/./gio/gdbusprivate.c:276
        data = 0x9958128
#7  0xb70745f4 in g_thread_create_proxy (data=0x99581d0) at /build/buildd/glib2.0-2.30.0/./glib/gthread.c:1962
        thread = 0x99581d0
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#8  0xb6ff5d31 in start_thread (arg=0xb61b7b70) at pthread_create.c:304
        __res = <optimized out>
        pd = 0xb61b7b70
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {-1224708108, 0, 4001536, -1239715080, -2071709812, 1289360781}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        robust = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#9  0xb6f440ce in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130
No locals.
Backtrace stopped: Not enough registers or memory available to unwind further
.
Thread 1 (Thread 0xb6527860 (LWP 3113)):
#0  0xb7791424 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb6e9fc8f in __GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
        resultvar = <optimized out>
        resultvar = <optimized out>
        pid = -1224826892
        selftid = 3113
#2  0xb6ea32b5 in __GI_abort () at abort.c:92
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0xbfcf88f8, sa_sigaction = 0xbfcf88f8}, sa_mask = {__val = {3078207865, 3218049252, 3070285268, 3218049228, 3078298228, 0, 3058868624, 5, 0, 1, 3072985200, 160829440, 3070573595, 160829440, 3218049324, 4, 3071287284, 160752656, 3070573574, 3071287284, 0, 160829440, 3218049312, 160814024, 0, 3072985200, 3070326122, 3069055715, 3070697870, 160829440, 0, 3218049324}}, sa_flags = 4, sa_restorer = 0x995d300}
        sigs = {__val = {32, 0 <repeats 31 times>}}
#3  0xb70726ce in g_assertion_message (domain=0x0, file=0x804c12a "gsd-printer.c", line=1165, func=0x804cb0c "on_pdi_bus_acquired", message=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gtestutils.c:1425
        lstr = "1165\000=\005\267\364\037\020\267\364\037\020\267\f\277\006\267\252\325\225\t\003\371\t\267\000\000\000"
        s = 0x995d3c8 "\370\017\226\t0\264\376\266d-printer.c:1165:on_pdi_bus_acquired: assertion failed: (npn_registration_id > 0`"
#4  0xb7072ccf in g_assertion_message_expr (domain=0x0, file=0x804c12a "gsd-printer.c", line=1165, func=0x804cb0c "on_pdi_bus_acquired", expr=0x804c112 "npn_registration_id > 0") at /build/buildd/glib2.0-2.30.0/./glib/gtestutils.c:1436
        s = <optimized out>
#5  0x0804a950 in on_pdi_bus_acquired (connection=<optimized out>, name=<optimized out>, user_data=<optimized out>) at gsd-printer.c:1165
No locals.
#6  on_pdi_bus_acquired (connection=0x9953880, name=0x995e7d8 "com.redhat.PrinterDriversInstaller", user_data=0x0) at gsd-printer.c:1154
No locals.
#7  0xb720bbcf in connection_get_cb (source_object=0x0, res=0x9962b58, user_data=0x995e9b8) at /build/buildd/glib2.0-2.30.0/./gio/gdbusnameowning.c:439
        client = 0x995e9b8
#8  0xb71b2aef in g_simple_async_result_complete (simple=0x9962b58) at /build/buildd/glib2.0-2.30.0/./gio/gsimpleasyncresult.c:749
        current_source = <optimized out>
        current_context = <optimized out>
        __PRETTY_FUNCTION__ = "g_simple_async_result_complete"
#9  0xb71b2c1b in complete_in_idle_cb (data=0x9962b58) at /build/buildd/glib2.0-2.30.0/./gio/gsimpleasyncresult.c:761
        simple = 0x9962b58
#10 0xb7049110 in g_idle_dispatch (source=0x995d4d8, callback=0xb71b2c00 <complete_in_idle_cb>, user_data=0x9962b58) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:4801
No locals.
#11 0xb704d25f in g_main_dispatch (context=0x99582f8) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:2441
        dispatch = 0xb70490f0 <g_idle_dispatch>
        was_in_call = 0
        user_data = 0x9962b58
        callback = 0xb71b2c00 <complete_in_idle_cb>
        cb_funcs = 0xb710235c
        cb_data = 0x995ad08
        current_source_link = {data = 0x995d4d8, next = 0x0}
        need_destroy = <optimized out>
        source = 0x995d4d8
        current = 0x9959148
        i = <optimized out>
#12 g_main_context_dispatch (context=0x99582f8) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3011
No locals.
#13 0xb704d990 in g_main_context_iterate (context=0x99582f8, block=-1224359136, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3089
        max_priority = 0
        timeout = 0
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = <optimized out>
        fds = 0x995cfe8
#14 0xb704df9b in g_main_loop_run (loop=0x995e188) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3297
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#15 0x08049ba9 in main (argc=1, argv=0xbfcf8ce4) at gsd-printer.c:1414
        connection = 0x9953800
        client_signal_subscription_set = 1
        error = 0x0
        client_signal_subscription_id = 5
        session_signal_subscription_id = 1
        object_path = 0x995b098 "/org/gnome/SessionManager/Client3"
        __PRETTY_FUNCTION__ = "main"