#0  0x00f49416 in __kernel_vsyscall ()
No symbol table info available.
#1  0x0041ce71 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
        resultvar = <value optimized out>
        resultvar = <value optimized out>
        pid = 5566452
        selftid = 4673
#2  0x0042034e in abort () at abort.c:92
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x31db50, sa_sigaction = 0x31db50}, sa_mask = {__val = {3068128260, 14305908, 0, 3077840304, 5, 0, 1, 3077862080, 13, 18, 16, 16, 155755360, 16, 151981776, 5566452, 5571520, 149347640, 0, 0, 3068128336, 3554646, 3077862080, 3309137, 3077857280, 3550342, 151981520, 146282329, 3553663, 4132852, 4132852, 151981520}}, sa_flags = -1226838920, sa_restorer = 0x45ece5 <_int_free+21>}
        sigs = {__val = {32, 0 <repeats 31 times>}}
#3  0x00364f27 in g_logv (log_domain=0x3186a8 "GThread", log_level=<value optimized out>, format=0x318a5c "file %s: line %d (%s): error '%s' during '%s'", args1=0xb6dff13c "$\212\061") at /build/buildd/glib2.0-2.28.5/./glib/gmessages.c:557
        depth = 1
        domain = 0x0
        data = 0x0
        log_func = 0x363ec0 <g_log_default_handler>
        domain_fatal_mask = 5
        masquerade_fatal = <value optimized out>
        test_level = <value optimized out>
        was_fatal = 0
        was_recursion = 0
        i = <value optimized out>
#4  0x00364f62 in g_log (log_domain=0x3186a8 "GThread", log_level=G_LOG_LEVEL_ERROR, format=0x318a5c "file %s: line %d (%s): error '%s' during '%s'") at /build/buildd/glib2.0-2.28.5/./glib/gmessages.c:577
        args = 0xb6dff13c "$\212\061"
#5  0x00318104 in g_mutex_free_posix_impl (mutex=0x8b91e58) at /build/buildd/glib2.0-2.28.5/./gthread/gthread-posix.c:171
        error = <value optimized out>
        __PRETTY_FUNCTION__ = "g_mutex_free_posix_impl"
#6  0x005fb271 in book_backend_finalize (object=0x8b96070) at e-book-backend.c:140
        priv = 0x8b96098
#7  0x00b4298c in g_object_unref (_object=0x8b96070) at /build/buildd/glib2.0-2.28.5/./gobject/gobject.c:2734
        object = 0x8b96070
        old_ref = <value optimized out>
        __PRETTY_FUNCTION__ = "g_object_unref"
#8  0x005ff342 in e_data_book_dispose (object=0x8b7fb20) at e-data-book.c:867
        book = 0x8b7fb20
#9  0x00b428c3 in g_object_unref (_object=0x8b7fb20) at /build/buildd/glib2.0-2.28.5/./gobject/gobject.c:2697
        object = 0x8b7fb20
        old_ref = 1
        __PRETTY_FUNCTION__ = "g_object_unref"
#10 0x005fff0b in operation_thread (data=0xb6e00980, user_data=0x0) at e-data-book.c:141
        op = 0xb6e00980
        backend = <value optimized out>
#11 0x00387a39 in g_thread_pool_thread_proxy (data=0x8bbb5e0) at /build/buildd/glib2.0-2.28.5/./glib/gthreadpool.c:319
        task = 0x0
        pool = 0x8bbffb0
#12 0x003852df in g_thread_create_proxy (data=0x8bbca08) at /build/buildd/glib2.0-2.28.5/./glib/gthread.c:1897
        thread = 0x8bbca08
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#13 0x007c8e99 in start_thread (arg=0xb6dffb70) at pthread_create.c:304
        pd = 0xb6dffb70
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {8228852, 0, 4001536, -1226836952, 2142425222, 961053675}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <value optimized out>
        robust = <value optimized out>
        pagesize_m1 = <value optimized out>
        sp = <value optimized out>
        freesize = <value optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#14 0x004c273e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130
No locals.