Red Hat Bugzilla – Bug 545757
polkitd segfault starting VNC session
Last modified: 2009-12-17 12:51:24 EST
Description of problem: VNC sessions starts using /etc/sysconfig/vncservers no longer work, starting today. Part of the reason is that polkitd is crashing. Version-Release number of selected component (if applicable): polkit-0.95-0.git20090913.3.fc12.x86_64 selinux-policy-3.6.32-55.fc12.noarch How reproducible: 100% Steps to Reproduce: 1.Configure a VNC server in /etc/sysconfig/vncservers and enable the vncserver service Actual results: Session does not start correctly, polkitd crashes. Additional info: Core was generated by `/usr/libexec/polkit-1/polkitd'. Program terminated with signal 11, Segmentation fault. #0 _egg_dbus_error_encode_gerror (error=0x2099200) at eggdbuserror.c:135 135 if (strcmp (domain_as_string, "EggDBusError") == 0) [...] (gdb) bt full #0 _egg_dbus_error_encode_gerror (error=0x2099200) at eggdbuserror.c:135 domain_as_string = 0x0 s = <value optimized out> n = <value optimized out> enum_type = <value optimized out> #1 0x0000003f522287c1 in egg_dbus_method_invocation_return_gerror ( method_invocation=0x20b6ec0, error=0x2099200) at eggdbusmethodinvocation.c:342 error_name = <value optimized out> #2 0x00000035c761a5d1 in check_auth_cb (source_object=0x0, res=0x0, user_data=0x20b6ec0) at polkitbackendauthority.c:632 method_invocation = 0x20b6ec0 full_cancellation_id = 0x0 result = 0x0 error = 0x2099200 #3 0x00000035c761cdf0 in polkit_backend_interactive_authority_check_authorization (authority=0x208e6d0, caller=0x20998e0, subject=<value optimized out>, action_id=<value optimized out>, details=<value optimized out>, flags=<value optimized out>, cancellable=<value optimized out>, callback=<value optimized out>, user_data=<value optimized out>) at polkitbackendinteractiveauthority.c:492 interactive_authority = <value optimized out> caller_str = <value optimized out> subject_str = <value optimized out> user_of_caller = 0x2099ac0 user_of_subject = 0x0 user_of_caller_str = <value optimized out> user_of_subject_str = 0x0 result = 0x0 implicit_authorization = <value optimized out> error = 0x20990a0 simple = 0x209db60 has_details = <value optimized out> detail_keys = <value optimized out> #4 0x00000035c761a25e in authority_handle_check_authorization ( instance=0x20b7550, real_subject=<value optimized out>, action_id=<value optimized out>, real_details=<value optimized out>, flags=<value optimized out>, cancellation_id=<value optimized out>, method_invocation=<value optimized out>) at polkitbackendauthority.c:700 server = 0x209c240 caller_name = 0x209c900 ":1.33" subject = 0x20b7550 caller = 0x20998e0 cancellable = 0x0 details = <value optimized out> #5 0x00000035c76285d9 in handle_method_call (message=<value optimized out>, interface=<value optimized out>) at _polkitauthority.c:2309 _flags = _POLKIT_CHECK_AUTHORIZATION_FLAGS_NONE _cancellation_id = 0x20a4f10 "" _subject = 0x20b6e80 _action_id = 0x20a46e0 "org.freedesktop.RealtimeKit1.acquire-high-priority" _details = 0x20b2800 method_name = 0x20a46e0 "org.freedesktop.RealtimeKit1.acquire-high-priority" error = 0x0 signature = 0x20b6ec0 "@\273\t\002" expected_signature = 0x30fa5 <Address 0x30fa5 out of bounds> iface = 0x20b6e80 method_invocation = 0x20b6ec0 #6 handle_message (message=<value optimized out>, interface=<value optimized out>) at _polkitauthority.c:2857 __PRETTY_FUNCTION__ = "handle_message" #7 0x0000003f5222067c in filter_function_handle_method_call ( user_data=<value optimized out>, dmessage=<value optimized out>, dconnection=<value optimized out>) at eggdbusconnection.c:2213 connection = <value optimized out> method_name = <value optimized out> data = <value optimized out> message = 0x209ab40 objpath = 0x20aa3f8 "/org/freedesktop/PolicyKit1/Authority" sender = <value optimized out> interface_name = 0x20aa450 "org.freedesktop.PolicyKit1.Authority" #8 filter_function (user_data=<value optimized out>, dmessage=<value optimized out>, dconnection=<value optimized out>) at eggdbusconnection.c:294 ret = DBUS_HANDLER_RESULT_HANDLED #9 0x0000003df54109d6 in dbus_connection_dispatch (connection=0x20bcfc0) at dbus-connection.c:4444 filter = <value optimized out> next = 0x0 message = 0x20a9a90 link = <value optimized out> filter_list_copy = 0x209b3d0 message_link = 0x209b508 result = <value optimized out> pending = <value optimized out> reply_serial = <value optimized out> status = <value optimized out> __FUNCTION__ = "dbus_connection_dispatch" #10 0x0000003f506098e5 in message_queue_dispatch ( source=<value optimized out>, callback=<value optimized out>, user_data=<value optimized out>) at dbus-gmain.c:101 connection = 0x20bcfc0 #11 0x0000003f4d23922e in g_main_dispatch (context=<value optimized out>) at gmain.c:1960 dispatch = 0x3f506098d0 <message_queue_dispatch> was_in_call = 0 user_data = 0x0 callback = 0 cb_funcs = 0x0 cb_data = <value optimized out> current_source_link = {data = 0x2095f60, next = 0x0} source = 0x2095f60 current = 0x2099140 i = <value optimized out> #12 IA__g_main_context_dispatch (context=<value optimized out>) at gmain.c:2513 No locals. #13 0x0000003f4d23cc18 in g_main_context_iterate (context=0x2093800, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>) at gmain.c:2591 max_priority = 0 timeout = 0 some_ready = 1 nfds = 2 allocated_nfds = <value optimized out> fds = <value optimized out> __PRETTY_FUNCTION__ = "g_main_context_iterate" #14 0x0000003f4d23d065 in IA__g_main_loop_run (loop=0x2090180) at gmain.c:2799 self = 0x20949b0 __PRETTY_FUNCTION__ = "IA__g_main_loop_run" #15 0x0000000000400982 in main (argc=<value optimized out>, argv=<value optimized out>) at main.c:59 ret = 1 error = 0x0 loop = 0x0 authority = 0x208e6d0 (gdb) p *error $1 = {domain = 34181744, code = 0, message = 0x0}
Can you reproduce this problem with polkit-0.95-2.fc12 and selinux-policy-3.6.32-57.fc12 ? Both are either in updates or updates-testing.
Had to fetch them from koji. No, I can't reproduce it with those packages.
Thanks for testing. I'll assume it is fixed then.