GNU gdb (Ubuntu/Linaro 7.4-2012.02-0ubuntu2) 7.4-2012.02
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://bugs.launchpad.net/gdb-linaro/>...
Reading symbols from /usr/sbin/unity-greeter...Reading symbols from /usr/lib/debug/usr/sbin/unity-greeter...done.
done.
(gdb) handle SIG33 pass nostop noprint
Signal        Stop	Print	Pass to program	Description
SIG33         No	No	Yes		Real-time event 33
(gdb) set pagination 0
(gdb) run
Starting program: /usr/sbin/unity-greeter 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

** (process:16117): WARNING **: unity-greeter.vala:806: Error starting the at-spi registry: Failed to execute child process "/usr/lib/at-spi2-core/at-spi-bus-launcher" (No such file or directory)

Program received signal SIGSEGV, Segmentation fault.
0x00007fffeee5c704 in gvdb_table_is_valid (table=0x635de0) at ../gvdb/gvdb-reader.c:572
572	../gvdb/gvdb-reader.c: No such file or directory.
(gdb) backtrace full
#0  0x00007fffeee5c704 in gvdb_table_is_valid (table=0x635de0) at ../gvdb/gvdb-reader.c:572
No locals.
#1  0x00007fffeee5ad28 in dconf_engine_refresh_system (engine=0x641de0, i=1) at ../engine/dconf-engine.c:170
No locals.
#2  0x00007fffeee5ae3a in dconf_engine_refresh (engine=0x641de0) at ../engine/dconf-engine.c:206
        i = <optimized out>
#3  0x00007fffeee5b7fe in dconf_engine_get_state (engine=0x641de0) at ../engine/dconf-engine.c:228
        state = <optimized out>
#4  0x00007fffeee5d00b in outstanding_watch_new (name=0x6437d0 "/org/gnome/desktop/interface/", dcsb=0x648810) at dconfsettingsbackend.c:538
        watch = 0x63caa0
#5  dconf_settings_backend_subscribe (backend=0x648810, name=0x6437d0 "/org/gnome/desktop/interface/") at dconfsettingsbackend.c:626
        dcsb = 0x648810
#6  0x00007ffff64a8b63 in g_object_newv (object_type=<optimized out>, n_parameters=6567600, parameters=<optimized out>) at /build/buildd/glib2.0-2.32.0/./gobject/gobject.c:1741
        cparams = <optimized out>
        oparams = 0x6395c0
        nqueue = <optimized out>
        object = 0x641d90
        class = 0x642c10
        unref_class = 0x0
        slist = <optimized out>
        n_total_cparams = <optimized out>
        n_cparams = <optimized out>
        n_oparams = 0
        n_cvalues = <optimized out>
        cvalues = <optimized out>
        clist = <optimized out>
        newly_constructed = 1
        i = <optimized out>
        __PRETTY_FUNCTION__ = "g_object_newv"
#7  0x00007ffff64a8ea6 in g_object_new_valist (object_type=6560464, first_property_name=<optimized out>, var_args=0x7fffffffe298) at /build/buildd/glib2.0-2.32.0/./gobject/gobject.c:1830
        class = 0x642c10
        params = 0x644000
        name = <optimized out>
        object = <optimized out>
        n_params = <optimized out>
        n_alloced_params = <optimized out>
        __PRETTY_FUNCTION__ = "g_object_new_valist"
#8  0x00007ffff64a91b4 in g_object_new (object_type=6560464, first_property_name=0x7ffff6e5d7cb "schema-id") at /build/buildd/glib2.0-2.32.0/./gobject/gobject.c:1545
        object = <optimized out>
        var_args = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fffffffe380, reg_save_area = 0x7fffffffe2b0}}
        __PRETTY_FUNCTION__ = "g_object_new"
#9  0x00007fffef06dc57 in os_utils_is_blacklisted () from /usr/lib/liboverlay-scrollbar3-0.2.so.0
No symbol table info available.
#10 0x00007ffff782d72b in _ubuntu_overlay_scrollbar_init () at /build/buildd/gtk+3.0-3.4.0/./gtk/ubuntuoverlayscrollbar.c:67
        os_utils_is_blacklisted = 0x7fffef06dc40 <os_utils_is_blacklisted>
        module = 0x6419d0
        symbol = 0x7fffef06dc40
        flag = <optimized out>
        path = 0x7ffff7923a40 "/usr/lib/liboverlay-scrollbar3-0.2.so.0"
#11 0x00007ffff76be8da in do_post_parse_initialization (argc=<optimized out>, argv=<optimized out>) at /build/buildd/gtk+3.0-3.4.0/./gtk/gtkmain.c:721
No locals.
#12 post_parse_hook (context=<optimized out>, group=<optimized out>, data=0x63f950, error=0x7fffffffe4f8) at /build/buildd/gtk+3.0-3.4.0/./gtk/gtkmain.c:767
        info = 0x63f950
#13 0x00007ffff61eff70 in g_option_context_parse (context=<optimized out>, argc=<optimized out>, argv=<optimized out>, error=<optimized out>) at /build/buildd/glib2.0-2.32.0/./glib/goption.c:2025
        i = 1
        j = <optimized out>
        k = <optimized out>
        list = 0x0
#14 0x00007ffff76bed50 in gtk_parse_args (argc=0x7fffffffe564, argv=0x7fffffffe568) at /build/buildd/gtk+3.0-3.4.0/./gtk/gtkmain.c:957
        option_context = 0x63f8f0
        gtk_group = <optimized out>
        error = 0x0
#15 0x00007ffff76beda9 in gtk_init_check (argc=<optimized out>, argv=<optimized out>) at /build/buildd/gtk+3.0-3.4.0/./gtk/gtkmain.c:996
No locals.
#16 0x00007ffff76bedd9 in gtk_init (argc=<optimized out>, argv=<optimized out>) at /build/buildd/gtk+3.0-3.4.0/./gtk/gtkmain.c:1051
No locals.
#17 0x000000000041a0c7 in unity_greeter_main (args=0x7fffffffe6a8, args_length1=1) at unity-greeter.c:2460
        result = 0
        atspi_pid = 0
        _tmp6_ = <optimized out>
        _tmp7_ = 0
        _tmp8_ = 0x0
        _tmp9_ = 0x0
        _tmp10_ = <optimized out>
        _tmp11_ = <optimized out>
        _tmp12_ = 0x0
        _tmp13_ = 0x0
        _tmp14_ = 0x0
        _tmp15_ = <optimized out>
        c = <optimized out>
        _tmp16_ = <optimized out>
        _tmp17_ = <optimized out>
        _tmp18_ = 0x0
        _tmp28_ = <optimized out>
        _tmp30_ = <optimized out>
        _tmp31_ = 0x0
        _tmp32_ = <optimized out>
        settings = <optimized out>
        _tmp33_ = 0x0
        value = <optimized out>
        _tmp34_ = <optimized out>
        _tmp37_ = 0x0
        _tmp38_ = <optimized out>
        _tmp41_ = 0x0
        _tmp42_ = <optimized out>
        _tmp45_ = 0
        double_value = <optimized out>
        _tmp46_ = <optimized out>
        _tmp49_ = 0
        boolean_value = <optimized out>
        _tmp50_ = <optimized out>
        _tmp51_ = <optimized out>
        _tmp52_ = 0x0
        _tmp53_ = <optimized out>
        _tmp56_ = 0x0
        _tmp57_ = <optimized out>
        _tmp60_ = <optimized out>
        greeter = <optimized out>
        _tmp61_ = <optimized out>
        _tmp62_ = 0x0
        exec = <optimized out>
        exec_length1 = <optimized out>
        _exec_size_ = <optimized out>
        _tmp63_ = <optimized out>
        _tmp63__length1 = <optimized out>
        _tmp64_ = <optimized out>
        _tmp65_ = <optimized out>
        _tmp69_ = 0
        _inner_error_ = 0x0
#18 0x00007ffff550576d in __libc_start_main (main=0x409ef0 <main>, argc=1, ubp_av=0x7fffffffe6a8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffe698) at libc-start.c:226
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -1922195549029179944, 4235024, 140737488348832, 0, 0, 1922195548830916056, 1922218960096812504}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x4202e0, 0x7fffffffe6a8}, data = {prev = 0x0, cleanup = 0x0, canceltype = 4326112}}}
        not_first_call = <optimized out>
#19 0x0000000000409f39 in _start ()
No symbol table info available.
(gdb) info registers
rax            0x0	0
rbx            0x1	1
rcx            0x1	1
rdx            0x0	0
rsi            0x1	1
rdi            0x635de0	6512096
rbp            0x641de0	0x641de0
rsp            0x7fffffffe068	0x7fffffffe068
r8             0x64ebf0	6614000
r9             0x3ef5	16117
r10            0x7fffffffde60	140737488346720
r11            0x7ffff6220560	140737322812768
r12            0x8	8
r13            0x0	0
r14            0x6395c0	6526400
r15            0x641d90	6561168
rip            0x7fffeee5c704	0x7fffeee5c704 <gvdb_table_is_valid+4>
eflags         0x10202	[ IF RF ]
cs             0x33	51
ss             0x2b	43
ds             0x0	0
es             0x0	0
fs             0x0	0
gs             0x0	0
(gdb) x/16i $pc
=> 0x7fffeee5c704 <gvdb_table_is_valid+4>:	cmpb   $0x0,(%rax)
   0x7fffeee5c707 <gvdb_table_is_valid+7>:	setne  %al
   0x7fffeee5c70a <gvdb_table_is_valid+10>:	movzbl %al,%eax
   0x7fffeee5c70d <gvdb_table_is_valid+13>:	retq   
   0x7fffeee5c70e:	xchg   %ax,%ax
   0x7fffeee5c710 <gvdb_table_walk>:	push   %r15
   0x7fffeee5c712 <gvdb_table_walk+2>:	mov    %rdx,%r15
   0x7fffeee5c715 <gvdb_table_walk+5>:	mov    $0x4c,%edx
   0x7fffeee5c71a <gvdb_table_walk+10>:	push   %r14
   0x7fffeee5c71c <gvdb_table_walk+12>:	push   %r13
   0x7fffeee5c71e <gvdb_table_walk+14>:	mov    %r9,%r13
   0x7fffeee5c721 <gvdb_table_walk+17>:	push   %r12
   0x7fffeee5c723 <gvdb_table_walk+19>:	xor    %r12d,%r12d
   0x7fffeee5c726 <gvdb_table_walk+22>:	push   %rbp
   0x7fffeee5c727 <gvdb_table_walk+23>:	mov    %r8,%rbp
   0x7fffeee5c72a <gvdb_table_walk+26>:	push   %rbx
(gdb) thread apply all backtrace

Thread 1 (Thread 0x7ffff7fca940 (LWP 16117)):
#0  0x00007fffeee5c704 in gvdb_table_is_valid (table=0x635de0) at ../gvdb/gvdb-reader.c:572
#1  0x00007fffeee5ad28 in dconf_engine_refresh_system (engine=0x641de0, i=1) at ../engine/dconf-engine.c:170
#2  0x00007fffeee5ae3a in dconf_engine_refresh (engine=0x641de0) at ../engine/dconf-engine.c:206
#3  0x00007fffeee5b7fe in dconf_engine_get_state (engine=0x641de0) at ../engine/dconf-engine.c:228
#4  0x00007fffeee5d00b in outstanding_watch_new (name=0x6437d0 "/org/gnome/desktop/interface/", dcsb=0x648810) at dconfsettingsbackend.c:538
#5  dconf_settings_backend_subscribe (backend=0x648810, name=0x6437d0 "/org/gnome/desktop/interface/") at dconfsettingsbackend.c:626
#6  0x00007ffff64a8b63 in g_object_newv (object_type=<optimized out>, n_parameters=6567600, parameters=<optimized out>) at /build/buildd/glib2.0-2.32.0/./gobject/gobject.c:1741
#7  0x00007ffff64a8ea6 in g_object_new_valist (object_type=6560464, first_property_name=<optimized out>, var_args=0x7fffffffe298) at /build/buildd/glib2.0-2.32.0/./gobject/gobject.c:1830
#8  0x00007ffff64a91b4 in g_object_new (object_type=6560464, first_property_name=0x7ffff6e5d7cb "schema-id") at /build/buildd/glib2.0-2.32.0/./gobject/gobject.c:1545
#9  0x00007fffef06dc57 in os_utils_is_blacklisted () from /usr/lib/liboverlay-scrollbar3-0.2.so.0
#10 0x00007ffff782d72b in _ubuntu_overlay_scrollbar_init () at /build/buildd/gtk+3.0-3.4.0/./gtk/ubuntuoverlayscrollbar.c:67
#11 0x00007ffff76be8da in do_post_parse_initialization (argc=<optimized out>, argv=<optimized out>) at /build/buildd/gtk+3.0-3.4.0/./gtk/gtkmain.c:721
#12 post_parse_hook (context=<optimized out>, group=<optimized out>, data=0x63f950, error=0x7fffffffe4f8) at /build/buildd/gtk+3.0-3.4.0/./gtk/gtkmain.c:767
#13 0x00007ffff61eff70 in g_option_context_parse (context=<optimized out>, argc=<optimized out>, argv=<optimized out>, error=<optimized out>) at /build/buildd/glib2.0-2.32.0/./glib/goption.c:2025
#14 0x00007ffff76bed50 in gtk_parse_args (argc=0x7fffffffe564, argv=0x7fffffffe568) at /build/buildd/gtk+3.0-3.4.0/./gtk/gtkmain.c:957
#15 0x00007ffff76beda9 in gtk_init_check (argc=<optimized out>, argv=<optimized out>) at /build/buildd/gtk+3.0-3.4.0/./gtk/gtkmain.c:996
#16 0x00007ffff76bedd9 in gtk_init (argc=<optimized out>, argv=<optimized out>) at /build/buildd/gtk+3.0-3.4.0/./gtk/gtkmain.c:1051
#17 0x000000000041a0c7 in unity_greeter_main (args=0x7fffffffe6a8, args_length1=1) at unity-greeter.c:2460
#18 0x00007ffff550576d in __libc_start_main (main=0x409ef0 <main>, argc=1, ubp_av=0x7fffffffe6a8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffe698) at libc-start.c:226
#19 0x0000000000409f39 in _start ()
(gdb) quit
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	Inferior 1 [process 16117] will be killed.

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