.
Thread 3 (LWP 2314):
#0  0xb7747424 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb732d7ab in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#2  0xb747120b in poll (__timeout=-1, __nfds=1, __fds=0xb6700c78) at /usr/include/i386-linux-gnu/bits/poll2.h:46
No locals.
#3  g_poll (fds=fds@entry=0xb6700c78, nfds=nfds@entry=1, timeout=timeout@entry=-1) at /build/buildd/glib2.0-2.40.0/./glib/gpoll.c:124
No locals.
#4  0xb74623e8 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0xb6700c78, timeout=-1, context=0x938e750) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:4028
        poll_func = 0xb74711e0 <g_poll>
#5  g_main_context_iterate (context=context@entry=0x938e750, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:3729
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = <optimized out>
        fds = 0xb6700c78
#6  0xb7462528 in g_main_context_iteration (context=context@entry=0x938e750, may_block=may_block@entry=1) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:3795
        retval = <optimized out>
#7  0xb70da670 in dconf_gdbus_worker_thread (user_data=0x938e750) at dconf-gdbus-thread.c:82
        context = 0x938e750
#8  0xb74889ca in g_thread_proxy (data=0x9394f50) at /build/buildd/glib2.0-2.40.0/./glib/gthread.c:764
        thread = 0x9394f50
#9  0xb7405f70 in start_thread (arg=0xb70ccb40) at pthread_create.c:312
        __res = <optimized out>
        pd = 0xb70ccb40
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {-1220444160, -1223898304, 4001536, -1223900248, -1660847228, 70968708}, 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"
#10 0xb733c70e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129
No locals.
.
Thread 2 (LWP 2315):
#0  0xb7747424 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb732d7ab in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#2  0xb747120b in poll (__timeout=-1, __nfds=2, __fds=0xb5d02f78) at /usr/include/i386-linux-gnu/bits/poll2.h:46
No locals.
#3  g_poll (fds=fds@entry=0xb5d02f78, nfds=nfds@entry=2, timeout=timeout@entry=-1) at /build/buildd/glib2.0-2.40.0/./glib/gpoll.c:124
No locals.
#4  0xb74623e8 in g_main_context_poll (priority=2147483647, n_fds=2, fds=0xb5d02f78, timeout=-1, context=0xb670bb00) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:4028
        poll_func = 0xb74711e0 <g_poll>
#5  g_main_context_iterate (context=0xb670bb00, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:3729
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 2
        allocated_nfds = <optimized out>
        fds = 0xb5d02f78
#6  0xb746276b in g_main_loop_run (loop=0xb670bac8) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:3928
        __FUNCTION__ = "g_main_loop_run"
#7  0xb7658e9a in gdbus_shared_thread_func (user_data=0xb670bae8) at /build/buildd/glib2.0-2.40.0/./gio/gdbusprivate.c:273
        data = 0xb670bae8
#8  0xb74889ca in g_thread_proxy (data=0x9395580) at /build/buildd/glib2.0-2.40.0/./glib/gthread.c:764
        thread = 0x9395580
#9  0xb7405f70 in start_thread (arg=0xb66ffb40) at pthread_create.c:312
        __res = <optimized out>
        pd = 0xb66ffb40
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {-1220444160, -1234175168, 4001536, -1234177112, 1533115270, 70968708}, 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"
#10 0xb733c70e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129
No locals.
.
Thread 1 (LWP 2312):
#0  0xb746940a in _g_log_abort (breakpoint=1) at /build/buildd/glib2.0-2.40.0/./glib/gmessages.c:308
No locals.
#1  g_logv (log_domain=log_domain@entry=0xb767f938 "GLib-GIO", log_level=log_level@entry=G_LOG_LEVEL_ERROR, format=format@entry=0xb769ce44 "Settings schema '%s' does not contain a key named '%s'", args=args@entry=0xbfeafc2c " \243\070\th\360\070\t \v8\t\001") at /build/buildd/glib2.0-2.40.0/./glib/gmessages.c:1033
        domain = 0x0
        data = 0x0
        depth = 1
        log_func = 0xb7468b10 <g_log_default_handler>
        domain_fatal_mask = <optimized out>
        masquerade_fatal = <optimized out>
        test_level = <optimized out>
        was_fatal = 0
        was_recursion = 0
        msg = 0x938bd88 "Settings schema 'org.compiz.unityshell' does not contain a key named 'show-desktop-icon'"
        msg_alloc = 0x938bd88 "Settings schema 'org.compiz.unityshell' does not contain a key named 'show-desktop-icon'"
        i = 2
#2  0xb7469523 in g_log (log_domain=log_domain@entry=0xb767f938 "GLib-GIO", log_level=log_level@entry=G_LOG_LEVEL_ERROR, format=format@entry=0xb769ce44 "Settings schema '%s' does not contain a key named '%s'") at /build/buildd/glib2.0-2.40.0/./glib/gmessages.c:1071
        args = 0xbfeafc2c " \243\070\th\360\070\t \v8\t\001"
#3  0xb76322f3 in g_settings_schema_get_value (schema=schema@entry=0x937fea0, key=key@entry=0x938f068 "show-desktop-icon") at /build/buildd/glib2.0-2.40.0/./gio/gsettingsschema.c:947
        s = 0x0
        iter = <optimized out>
        value = <optimized out>
        __FUNCTION__ = "g_settings_schema_get_value"
#4  0xb7632738 in g_settings_schema_key_init (key=<optimized out>, key@entry=0xbfeafcd0, schema=<optimized out>, name=<optimized out>, name@entry=0x938f068 "show-desktop-icon") at /build/buildd/glib2.0-2.40.0/./gio/gsettingsschema.c:1144
        iter = <optimized out>
        data = 0xb74a508b <g_variant_type_free+27>
        code = 183 '\267'
#5  0xb763721a in g_settings_set_value (settings=settings@entry=0x937fe90, key=key@entry=0x938f068 "show-desktop-icon", value=0x9380aa8) at /build/buildd/glib2.0-2.40.0/./gio/gsettings.c:1462
        skey = {schema = 0x0, name = 0x0, is_flags = 0, is_enum = 0, strinfo = 0x0, strinfo_length = 0, unparsed = 0x0, lc_char = 0 '\000', type = 0x0, minimum = 0x0, maximum = 0x0, default_value = 0x0, ref_count = 0}
        success = <optimized out>
        __FUNCTION__ = "g_settings_set_value"
#6  0xb763742b in g_settings_set (settings=settings@entry=0x937fe90, key=0x938f068 "show-desktop-icon", format=format@entry=0x804b0a7 "b") at /build/buildd/glib2.0-2.40.0/./gio/gsettings.c:1568
        value = <optimized out>
        ap = 0xbfeafd60 "\001"
#7  0x0804acb1 in handle_file (filename=<optimized out>) at gsettings-data-convert.c:295
        schema_path = 0x93892d0
        keyfile = 0x937fe28
        value = 0x938ecd0
        i = <optimized out>
        j = <optimized out>
        gconf_key = 0x938f778 "/apps/compiz-1/plugins/unityshell/screen0/options/show_desktop_icon"
        groups = 0x9388fb0
        keys = 0x938ef20
        builder = <optimized out>
        v = <optimized out>
        s = <optimized out>
        str = <optimized out>
        ii = <optimized out>
        list = <optimized out>
        l = <optimized out>
        source = 0x9380618
        schema = <optimized out>
        settings = 0x937fe90
        error = 0x0
#8  0x0804a2ab in main (argc=1, argv=0xbfeaff94) at gsettings-data-convert.c:669
        base = 0x937fc58 "compiz-profile-active-unity.convert"
        stored_mtime = 1336203039
        data_dirs = <optimized out>
        i = <optimized out>
        error = 0x0
        context = <optimized out>
        extra_file = 0x9381c20 "/usr/lib/compiz/migration/compiz-profile-active-unity.convert"
        entries = {{long_name = 0x804b0cc "verbose", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x804d1ac <verbose>, description = 0x804b0d4 "show verbose messages", arg_description = 0x0}, {long_name = 0x804b0ea "dry-run", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x804d1a8 <dry_run>, description = 0x804b0f2 "do not perform any changes", arg_description = 0x0}, {long_name = 0x804b10d "file", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_STRING, arg_data = 0xbfeafe10, description = 0x804b30c "perform conversions from an extra file", arg_description = 0x0}, {long_name = 0x0, short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x0, description = 0x0, arg_description = 0x0}}