+++ This bug was initially created as a clone of Bug #506734 +++ +++ This bug was initially created as a clone of Bug #499489 +++ --- Additional comment from alexm.cat on 2009-06-17 08:22:04 EDT --- It works for me, but not at all. GDM no longer crashes after 10 minutes of inactivity, but It does when I try to log in after every 10 minutes. This is the traceback I get: Jun 17 14:05:32 PL-REC019 gdm-binary[21771]: nss_ldap: could not search LDAP server - Server is unavailable Jun 17 14:05:32 PL-REC019 gdm-simple-slave[23053]: WARNING: Failed to add user authorization: Message did not receive a reply (timeout by message bus) Jun 17 14:05:32 PL-REC019 gdm[23230]: ******************* START ********************************** Jun 17 14:05:33 PL-REC019 gdm[23230]: [Thread debugging using libthread_db enabled] Jun 17 14:05:33 PL-REC019 gdm[23230]: 0x008cd424 in __kernel_vsyscall () Jun 17 14:05:33 PL-REC019 gdm[23230]: #0 0x008cd424 in __kernel_vsyscall () Jun 17 14:05:33 PL-REC019 gdm[23230]: #1 0x0045ed43 in __waitpid_nocancel () from /lib/libc.so.6 Jun 17 14:05:33 PL-REC019 gdm[23230]: #2 0x080666a1 in gdm_signal_handler_backtrace () Jun 17 14:05:33 PL-REC019 gdm[23230]: #3 0x08066791 in signal_handler () Jun 17 14:05:33 PL-REC019 gdm[23230]: #4 <signal handler called> Jun 17 14:05:33 PL-REC019 gdm[23230]: #5 0x008cd424 in __kernel_vsyscall () Jun 17 14:05:33 PL-REC019 gdm[23230]: #6 0x003ec7c1 in raise () from /lib/libc.so.6 Jun 17 14:05:33 PL-REC019 gdm[23230]: #7 0x003ee092 in abort () from /lib/libc.so.6 Jun 17 14:05:33 PL-REC019 gdm[23230]: #8 0x007546fd in g_assertion_message () from /lib/libglib-2.0.so.0 Jun 17 14:05:33 PL-REC019 gdm[23230]: #9 0x00754cbd in g_assertion_message_expr () from /lib/libglib-2.0.so.0 Jun 17 14:05:33 PL-REC019 gdm[23230]: #10 0x08061f84 in start_session_timeout () Jun 17 14:05:33 PL-REC019 gdm[23230]: #11 0x0072b341 in ?? () from /lib/libglib-2.0.so.0 Jun 17 14:05:33 PL-REC019 gdm[23230]: #12 0x0072d1e8 in g_main_context_dispatch () from /lib/libglib-2.0.so.0 Jun 17 14:05:33 PL-REC019 gdm[23230]: #13 0x007307f8 in ?? () from /lib/libglib-2.0.so.0 Jun 17 14:05:33 PL-REC019 gdm[23230]: #14 0x00730caf in g_main_loop_run () from /lib/libglib-2.0.so.0 Jun 17 14:05:33 PL-REC019 gdm[23230]: #15 0x0804d2cf in main () Jun 17 14:05:33 PL-REC019 gdm[23230]: Jun 17 14:05:33 PL-REC019 gdm[23230]: Thread 1 (Thread 0xb8055720 (LWP 23053)): Jun 17 14:05:33 PL-REC019 gdm[23230]: #0 0x008cd424 in __kernel_vsyscall () Jun 17 14:05:33 PL-REC019 gdm[23230]: No symbol table info available. Jun 17 14:05:33 PL-REC019 gdm[23230]: #1 0x0045ed43 in __waitpid_nocancel () from /lib/libc.so.6 Jun 17 14:05:33 PL-REC019 gdm[23230]: No symbol table info available. Jun 17 14:05:33 PL-REC019 gdm[23230]: #2 0x080666a1 in gdm_signal_handler_backtrace () Jun 17 14:05:33 PL-REC019 gdm[23230]: No symbol table info available. Jun 17 14:05:33 PL-REC019 gdm[23230]: #3 0x08066791 in signal_handler () Jun 17 14:05:33 PL-REC019 gdm[23230]: No symbol table info available. Jun 17 14:05:33 PL-REC019 gdm[23230]: #4 <signal handler called> Jun 17 14:05:33 PL-REC019 gdm[23230]: No symbol table info available. Jun 17 14:05:33 PL-REC019 gdm[23230]: #5 0x008cd424 in __kernel_vsyscall () Jun 17 14:05:33 PL-REC019 gdm[23230]: No symbol table info available. Jun 17 14:05:33 PL-REC019 gdm[23230]: #6 0x003ec7c1 in raise () from /lib/libc.so.6 Jun 17 14:05:33 PL-REC019 gdm[23230]: No symbol table info available. Jun 17 14:05:33 PL-REC019 gdm[23230]: #7 0x003ee092 in abort () from /lib/libc.so.6 Jun 17 14:05:33 PL-REC019 gdm[23230]: No symbol table info available. Jun 17 14:05:33 PL-REC019 gdm[23230]: #8 0x007546fd in g_assertion_message () from /lib/libglib-2.0.so.0 Jun 17 14:05:33 PL-REC019 gdm[23230]: No symbol table info available. Jun 17 14:05:33 PL-REC019 gdm[23230]: #9 0x00754cbd in g_assertion_message_expr () from /lib/libglib-2.0.so.0 Jun 17 14:05:33 PL-REC019 gdm[23230]: No symbol table info available. Jun 17 14:05:33 PL-REC019 gdm[23230]: #10 0x08061f84 in start_session_timeout () Jun 17 14:05:33 PL-REC019 gdm[23230]: No symbol table info available. Jun 17 14:05:33 PL-REC019 gdm[23230]: #11 0x0072b341 in ?? () from /lib/libglib-2.0.so.0 Jun 17 14:05:33 PL-REC019 gdm[23230]: No symbol table info available. Jun 17 14:05:33 PL-REC019 gdm[23230]: #12 0x0072d1e8 in g_main_context_dispatch () from /lib/libglib-2.0.so.0 Jun 17 14:05:33 PL-REC019 gdm[23230]: No symbol table info available. Jun 17 14:05:33 PL-REC019 gdm[23230]: #13 0x007307f8 in ?? () from /lib/libglib-2.0.so.0 Jun 17 14:05:33 PL-REC019 gdm[23230]: No symbol table info available. Jun 17 14:05:33 PL-REC019 gdm[23230]: #14 0x00730caf in g_main_loop_run () from /lib/libglib-2.0.so.0 Jun 17 14:05:33 PL-REC019 gdm[23230]: No symbol table info available. Jun 17 14:05:33 PL-REC019 gdm[23230]: #15 0x0804d2cf in main () Jun 17 14:05:33 PL-REC019 gdm[23230]: No symbol table info available. Jun 17 14:05:33 PL-REC019 gdm[23230]: The program is running. Quit anyway (and detach it)? (y or n) [answered Y; input not from terminal] Jun 17 14:05:33 PL-REC019 gdm[23230]: ******************* END ********************************** Notice the LDAP error, it's always before the traceback. --- Additional comment from alexm.cat on 2009-06-19 08:35:56 EDT --- And this with UTF-8: Jun 19 11:53:39 PL-REC019 gdm-binary[1450]: nss_ldap: could not search LDAP server - Server is unavailable Jun 19 11:53:39 PL-REC019 gdm-simple-slave[2128]: WARNING: Failed to add user authorization: could not find user "t7809263" on system --- Additional comment from rstrode on 2009-06-19 13:58:28 EDT --- As you pointed out above, the second log has: Jun 19 11:53:39 PL-REC019 gdm-simple-slave[2128]: DEBUG(+): GdmSlave: Requesting user authorization Jun 19 11:53:39 PL-REC019 gdm-binary[1450]: nss_ldap: could not search LDAP server - Server is unavailable Jun 19 11:53:39 PL-REC019 gdm-simple-slave[2128]: WARNING: Failed to add user authorization: could not find user "t7809263" on system In this case, the AddUserAuthentication call is successfully invoked, it makes it across the bus to the other side, and then it fails in _create_xauth_file_for_user is trying to do password_entry = getpwnam ("t7809263"); and failing. This failure appears to be a bug in nss_ldap. It should automatically detect when the server goes away and try to reconnect. That appears to be the root problem. All the other problems are poor error handling. Since I need to fix the bad error handling, too, I'm going to clone this report instead of reassign.
Any progress here? It is possible to consider it as nss_ldap bug?
Yes, it is. No idea on progress.
Is it still reproducible with latest GDM patches? Can you please try with SSSD? SSSD is now a preferred method for getting user identities online and offline and handles the LDAP timeout nicely.
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