Public bug reported: Joining a AD-domain is extremely error-prone. You get segfaults every now and then. Random behaviour.
This problems is identified and corrected by upstream developer Stef Walter, and fixed in subsequent version realmd 0.15.1. This is a stacktrace: (gdb) backtrace full #0 strlen () at ../sysdeps/x86_64/strlen.S:106 No locals. #1 0x0000000000425896 in safe_asprintf (strp=strp@entry=0x7fffffffd2d0, format=format@entry=0x0) at safe-printf.c:265 cx = {data = 0x661000 "\240[f", length = 140737323792224, alloc = 8} args = 0x674820 num_args = 3 va = {{gp_offset = 48, fp_offset = 48, overflow_arg_area = 0x7fffffffd2a0, reg_save_area = 0x7fffffffd1b0}} ret = <optimized out> i = <optimized out> #2 0x0000000000421c8e in update_login_formats (self=0x7fffe8004e50) at realm-sssd.c:362 qualify = <optimized out> kerberos = 0x7fffe8004e50 login_formats = {0x0, 0x0} format = 0x0 domain_name = 0x676060 "openforce.org" #3 realm_sssd_update_properties (self=0x7fffe8004e50) at realm-sssd.c:464 obj = 0x7fffe8004e50 my_name = <optimized out> name = 0x676020 "`Ug" section = 0x0 domains = 0x676060 i = <optimized out> #4 0x0000000000421dd8 in realm_sssd_notify (obj=0x7fffe8004e50, spec=0x7fffe8004d80) at realm-sssd.c:505 No locals. #5 0x00007ffff793b3b8 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #6 0x00007ffff794c557 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #7 0x00007ffff7954a29 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #8 0x00007ffff7954ce2 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #9 0x00007ffff793f725 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #10 0x00007ffff793eff2 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #11 0x00007ffff79404d0 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #12 0x00007ffff79424c4 in g_object_new_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #13 0x00007ffff79428a4 in g_object_new () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #14 0x000000000041c71c in realm_provider_lookup_or_register_realm (self=0x65a5f0, realm_type=realm_type@entry=6749136, realm_name=realm_name@entry=0x66f9f0 "openforce.org", disco=disco@entry=0x0) at realm-provider.c:380 realm = <optimized out> unique_number = 1 provider_path = <optimized out> escaped = 0x66fe40 "\001" path = 0x66fed0 "/org/freedesktop/realmd/Sssd/openforce_org_1" #15 0x00000000004236cb in realm_sssd_provider_constructed (obj=<optimized out>) at realm-sssd-provider.c:85 self = 0x65a5f0 realm_type = 6749136 domains = 0x66f940 type = 0x66f9d0 "ad" name = 0x66f9f0 "openforce.org" ---Type <return> to continue, or q <return> to quit--- i = <optimized out> #16 0x00007ffff794038a in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #17 0x00007ffff79424c4 in g_object_new_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #18 0x00007ffff79428a4 in g_object_new () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #19 0x0000000000423753 in realm_sssd_provider_new () at realm-sssd-provider.c:245 No locals. #20 0x000000000040e9d5 in initialize_service (connection=0x65e070) at realm-daemon.c:182 all_provider = 0x65a310 provider = <optimized out> __FUNCTION__ = "initialize_service" #21 0x000000000040eb2e in on_bus_get_connection (source=<optimized out>, result=<optimized out>, unused=<optimized out>) at realm-daemon.c:243 flags = G_BUS_NAME_OWNER_FLAGS_ALLOW_REPLACEMENT error = 0x0 connection = <optimized out> owner_id = <optimized out> #22 0x00007ffff7105ef7 in g_simple_async_result_complete () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #23 0x00007ffff7105f59 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #24 0x00007ffff766bce5 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #25 0x00007ffff766c048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #26 0x00007ffff766c30a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #27 0x000000000040b70c in main (argc=1, argv=0x7fffffffe568) at realm-daemon.c:547 context = <optimized out> error = 0x0 env = <optimized out> path = <optimized out> option_entries = {{long_name = 0x430c79 "debug", short_name = 100 'd', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x646214 <service_debug>, description = 0x430e60 "Turn on debug output, prevent timeout exit", arg_description = 0x0}, { long_name = 0x4341ce "install", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_STRING, arg_data = 0x646208 <service_install>, description = 0x430e90 "Turn on installer mode, install to this prefix", arg_description = 0x0}, {long_name = 0x430c7f "dbus-peer", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_INT, arg_data = 0x646050 <service_dbus_fd>, description = 0x430ec0 "Use a peer to peer dbus connection on this fd", arg_description = 0x0}, {long_name = 0x430c89 "replace", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x646210 <service_replace>, description = 0x430ef0 "Replace a running realmd searvice", 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}} (gdb) ** Affects: realmd (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1325463 Title: segfault while realmd-join To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/realmd/+bug/1325463/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs