On Wed, May 07, 2008 at 11:56:39PM +0200, Kurt Roeckx wrote: > On Wed, May 07, 2008 at 11:30:32PM +0200, Kurt Roeckx wrote: > > Package: gdm > > Version: 2.20.5-1 > > Severity: important > > > > Hi, > > > > A few days ago, gdm started to restart every time I log in for the > > first time after booting. It switched back to console and then > > restarts gdm. > > > > In the log file I see: > > May 7 22:46:28 pc2 gdm[2726]: WARNING: gdm_cleanup_children: child 2731 > > crashed of signal 6 > > May 7 22:46:28 pc2 gdm[2726]: WARNING: gdm_cleanup_children: Slave > > crashed, killing its children > > > > I seem to have this version installed since 2008-04-26, but probably > > didn't reboot then. It was an upgrade from 2.20.4-1. > > I'm seeing the same problem with 2.20.4-1. It seems that gdm starts 2 > processes, and it's the second of those that gets the sigabort. I > attached gdb to it, and it first received a bunch of SIGUSR2, then an > SIGABRT. The stack trace wasn't very useful without debug symbols. > I'll build a version with debug info.
So, I've build with debug now. I first just started the new version which worked, and got: Program received signal SIGUSR2, User defined signal 2. [Switching to Thread 0xb744daa0 (LWP 22635)] 0xb7ef6424 in __kernel_vsyscall () (gdb) bt #0 0xb7ef6424 in __kernel_vsyscall () #1 0xb76cebec in sched_yield () from /lib/i686/cmov/libc.so.6 #2 0x0806673e in gdm_slave_send (str=0x98fe9b0 "QUERYLOGIN 22635 kurt", wait_for_ack=1) at slave.c:2982 #3 0x08066c2b in gdm_slave_send_string (opcode=0x80994b4 "QUERYLOGIN", str=0x98fe5c0 "kurt") at slave.c:3096 #4 0x08061e57 in gdm_slave_check_user_wants_to_log_in (user=0x98fe5c0 "kurt") at slave.c:1293 #5 0x0807c120 in gdm_verify_user (d=0x98f0a28, username=0x0, allow_retry=1) at verify-pam.c:1094 #6 0x080639f1 in gdm_slave_wait_for_login () at slave.c:2127 #7 0x08062918 in gdm_slave_run (display=0x98f0a28) at slave.c:1650 #8 0x08061592 in gdm_slave_start (display=0x98f0a28) at slave.c:932 #9 0x0805ecd3 in gdm_display_manage (d=0x98f0a28) at display.c:414 #10 0x08050146 in gdm_start_first_unborn_local (delay=0) at gdm.c:266 #11 0x08053049 in main (argc=1, argv=0xbff12554) at gdm.c:1776 (gdb) c Continuing. Program received signal SIGUSR2, User defined signal 2. 0xb7ef6424 in __kernel_vsyscall () (gdb) bt #0 0xb7ef6424 in __kernel_vsyscall () #1 0xb76db1d3 in write () from /lib/i686/cmov/libc.so.6 #2 0x080723ce in gdm_fdprintf (fd=5, format=0x809a4a5 "\n%s\n") at misc.c:198 #3 0x080666fe in gdm_slave_send (str=0x98fed68 "LOGGED_IN 22635 1", wait_for_ack=1) at slave.c:2973 #4 0x08066ae6 in gdm_slave_send_num (opcode=0x8099747 "LOGGED_IN", num=1) at slave.c:3069 #5 0x08062938 in gdm_slave_run (display=0x98f0a28) at slave.c:1653 #6 0x08061592 in gdm_slave_start (display=0x98f0a28) at slave.c:932 #7 0x0805ecd3 in gdm_display_manage (d=0x98f0a28) at display.c:414 #8 0x08050146 in gdm_start_first_unborn_local (delay=0) at gdm.c:266 #9 0x08053049 in main (argc=1, argv=0xbff12554) at gdm.c:1776 (gdb) c Continuing. Program received signal SIGUSR2, User defined signal 2. 0xb7ef6424 in __kernel_vsyscall () (gdb) bt #0 0xb7ef6424 in __kernel_vsyscall () #1 0xb76e372d in select () from /lib/i686/cmov/libc.so.6 #2 0x0806698e in gdm_slave_send (str=0x98fcf60 "LOGIN 22635 kurt", wait_for_ack=1) at slave.c:3032 #3 0x08066c2b in gdm_slave_send_string (opcode=0x8099751 "LOGIN", str=0x98fe5c0 "kurt") at slave.c:3096 #4 0x08062997 in gdm_slave_run (display=0x98f0a28) at slave.c:1664 #5 0x08061592 in gdm_slave_start (display=0x98f0a28) at slave.c:932 #6 0x0805ecd3 in gdm_display_manage (d=0x98f0a28) at display.c:414 #7 0x08050146 in gdm_start_first_unborn_local (delay=0) at gdm.c:266 #8 0x08053049 in main (argc=1, argv=0xbff12554) at gdm.c:1776 i(gdb) c Continuing. Program received signal SIGUSR2, User defined signal 2. 0xb7ef6424 in __kernel_vsyscall () (gdb) bt #0 0xb7ef6424 in __kernel_vsyscall () #1 0xb76cebec in sched_yield () from /lib/i686/cmov/libc.so.6 #2 0x0806673e in gdm_slave_send (str=0x98fed68 "GREETPID 22635 0", wait_for_ack=1) at slave.c:2982 #3 0x08066ae6 in gdm_slave_send_num (opcode=0x80992a4 "GREETPID", num=0) at slave.c:3069 #4 0x08061af8 in gdm_slave_whack_greeter () at slave.c:1170 #5 0x0806abbf in gdm_slave_session_start () at slave.c:4680 #6 0x0806299c in gdm_slave_run (display=0x98f0a28) at slave.c:1665 #7 0x08061592 in gdm_slave_start (display=0x98f0a28) at slave.c:932 #8 0x0805ecd3 in gdm_display_manage (d=0x98f0a28) at display.c:414 #9 0x08050146 in gdm_start_first_unborn_local (delay=0) at gdm.c:266 #10 0x08053049 in main (argc=1, argv=0xbff12554) at gdm.c:1776 (gdb) (gdb) c Continuing. Program received signal SIGUSR2, User defined signal 2. 0xb7ef6424 in __kernel_vsyscall () (gdb) bt #0 0xb7ef6424 in __kernel_vsyscall () #1 0xb76db1d3 in write () from /lib/i686/cmov/libc.so.6 #2 0x080723ce in gdm_fdprintf (fd=5, format=0x809a4a5 "\n%s\n") at misc.c:198 #3 0x080666fe in gdm_slave_send (str=0x99018f0 "WRITE_X_SERVERS 22635 0", wait_for_ack=1) at slave.c:2973 #4 0x08066ae6 in gdm_slave_send_num (opcode=0x809bb53 "WRITE_X_SERVERS", num=0) at slave.c:3069 #5 0x0806afce in gdm_slave_session_start () at slave.c:4769 #6 0x0806299c in gdm_slave_run (display=0x98f0a28) at slave.c:1665 #7 0x08061592 in gdm_slave_start (display=0x98f0a28) at slave.c:932 #8 0x0805ecd3 in gdm_display_manage (d=0x98f0a28) at display.c:414 #9 0x08050146 in gdm_start_first_unborn_local (delay=0) at gdm.c:266 #10 0x08053049 in main (argc=1, argv=0xbff12554) at gdm.c:1776 (gdb) c Continuing. Program received signal SIGUSR2, User defined signal 2. 0xb7ef6424 in __kernel_vsyscall () (gdb) bt #0 0xb7ef6424 in __kernel_vsyscall () #1 0xb76db1d3 in write () from /lib/i686/cmov/libc.so.6 #2 0x080723ce in gdm_fdprintf (fd=5, format=0x809a4a5 "\n%s\n") at misc.c:198 #3 0x080666fe in gdm_slave_send (str=0x98fcf50 "SESSPID 22635 22661", wait_for_ack=1) at slave.c:2973 #4 0x08066ae6 in gdm_slave_send_num (opcode=0x809bb97 "SESSPID", num=22661) at slave.c:3069 #5 0x0806b579 in gdm_slave_session_start () at slave.c:4904 #6 0x0806299c in gdm_slave_run (display=0x98f0a28) at slave.c:1665 #7 0x08061592 in gdm_slave_start (display=0x98f0a28) at slave.c:932 #8 0x0805ecd3 in gdm_display_manage (d=0x98f0a28) at display.c:414 #9 0x08050146 in gdm_start_first_unborn_local (delay=0) at gdm.c:266 #10 0x08053049 in main (argc=1, argv=0xbff12554) at gdm.c:1776 Then I restarted the PC and got: Program received signal SIGUSR2, User defined signal 2. [Switching to Thread 0xb74caaa0 (LWP 2756)] 0xb7f73424 in __kernel_vsyscall () (gdb) c Continuing. Program received signal SIGUSR2, User defined signal 2. 0xb7f73424 in __kernel_vsyscall () (gdb) bt #0 0xb7f73424 in __kernel_vsyscall () #1 0xb774bbec in sched_yield () from /lib/i686/cmov/libc.so.6 #2 0x0806673e in gdm_slave_send (str=0x84ffb98 "LOGGED_IN 2756 1", wait_for_ack=1) at slave.c:2982 #3 0x08066ae6 in gdm_slave_send_num (opcode=0x8099747 "LOGGED_IN", num=1) at slave.c:3069 #4 0x08062938 in gdm_slave_run (display=0x84f1fd8) at slave.c:1653 #5 0x08061592 in gdm_slave_start (display=0x84f1fd8) at slave.c:932 #6 0x0805ecd3 in gdm_display_manage (d=0x84f1fd8) at display.c:414 #7 0x08050146 in gdm_start_first_unborn_local (delay=0) at gdm.c:266 #8 0x08053049 in main (argc=1, argv=0xbf88d6b4) at gdm.c:1776 (gdb) c Continuing. Program received signal SIGUSR2, User defined signal 2. 0xb7f73424 in __kernel_vsyscall () (gdb) bt #0 0xb7f73424 in __kernel_vsyscall () #1 0xb774bbec in sched_yield () from /lib/i686/cmov/libc.so.6 #2 0x0806673e in gdm_slave_send (str=0x84ffb98 "LOGIN 2756 kurt", wait_for_ack=1) at slave.c:2982 #3 0x08066c2b in gdm_slave_send_string (opcode=0x8099751 "LOGIN", str=0x84fca20 "kurt") at slave.c:3096 #4 0x08062997 in gdm_slave_run (display=0x84f1fd8) at slave.c:1664 #5 0x08061592 in gdm_slave_start (display=0x84f1fd8) at slave.c:932 #6 0x0805ecd3 in gdm_display_manage (d=0x84f1fd8) at display.c:414 #7 0x08050146 in gdm_start_first_unborn_local (delay=0) at gdm.c:266 #8 0x08053049 in main (argc=1, argv=0xbf88d6b4) at gdm.c:1776 (gdb) c Continuing. Program received signal SIGUSR2, User defined signal 2. 0xb7f73424 in __kernel_vsyscall () (gdb) bt #0 0xb7f73424 in __kernel_vsyscall () #1 0xb774bbec in sched_yield () from /lib/i686/cmov/libc.so.6 #2 0x0806673e in gdm_slave_send (str=0x84fef60 "GREETPID 2756 0", wait_for_ack=1) at slave.c:2982 #3 0x08066ae6 in gdm_slave_send_num (opcode=0x80992a4 "GREETPID", num=0) at slave.c:3069 #4 0x08061af8 in gdm_slave_whack_greeter () at slave.c:1170 #5 0x0806abbf in gdm_slave_session_start () at slave.c:4680 #6 0x0806299c in gdm_slave_run (display=0x84f1fd8) at slave.c:1665 #7 0x08061592 in gdm_slave_start (display=0x84f1fd8) at slave.c:932 #8 0x0805ecd3 in gdm_display_manage (d=0x84f1fd8) at display.c:414 #9 0x08050146 in gdm_start_first_unborn_local (delay=0) at gdm.c:266 #10 0x08053049 in main (argc=1, argv=0xbf88d6b4) at gdm.c:1776 (gdb) c Continuing. Program received signal SIGABRT, Aborted. 0xb7f73424 in __kernel_vsyscall () (gdb) bt #0 0xb7f73424 in __kernel_vsyscall () #1 0xb76bbef5 in raise () from /lib/i686/cmov/libc.so.6 #2 0xb76bd871 in abort () from /lib/i686/cmov/libc.so.6 #3 0xb78372c2 in ?? () from /usr/lib/libglib-2.0.so.0 #4 0x0000000a in ?? () #5 0xb77db580 in ?? () from /lib/i686/cmov/libc.so.6 #6 0xbf88cc24 in ?? () #7 0x00000ac4 in ?? () #8 0xb76f37fa in vasprintf () from /lib/i686/cmov/libc.so.6 #9 0xb7837419 in ?? () from /usr/lib/libglib-2.0.so.0 #10 0xb785d9ca in ?? () from /usr/lib/libglib-2.0.so.0 #11 0xb785d9b3 in ?? () from /usr/lib/libglib-2.0.so.0 #12 0x08502f08 in ?? () #13 0x08502f6c in ?? () #14 0x084f14c0 in ?? () #15 0x00000001 in ?? () #16 0x084f1400 in ?? () #17 0xb7893248 in ?? () from /usr/lib/libglib-2.0.so.0 #18 0x085020d0 in ?? () #19 0x084f14c0 in ?? () #20 0xbf88cca8 in ?? () #21 0xb7837637 in ?? () from /usr/lib/libglib-2.0.so.0 #22 0xbf88cc94 in ?? () #23 0x08500c00 in ?? () #24 0x08501e40 in ?? () #25 0x08500b60 in ?? () #26 0x084f1860 in ?? () #27 0x08500ab0 in ?? () #28 0x08500ab0 in ?? () #29 0x00000033 in ?? () #30 0x00000001 in ?? () #31 0xc576d1e5 in ?? () #32 0x08502a10 in ?? () #33 0x00000010 in ?? () #34 0x084ccee4 in ?? () #35 0x08500c00 in ?? () #36 0x08502a10 in ?? () #37 0xb7837436 in ?? () from /usr/lib/libglib-2.0.so.0 #38 0x6b206576 in ?? () #39 0x48222ab4 in ?? () #40 0x000ad18b in ?? () #41 0xb7893248 in ?? () from /usr/lib/libglib-2.0.so.0 #42 0x084cd8e8 in ?? () #43 0x00000001 in ?? () #44 0xbf88ccb8 in ?? () #45 0xb7837785 in ?? () from /usr/lib/libglib-2.0.so.0 #46 0x000000a0 in ?? () #47 0x084cd0e4 in ?? () #48 0xbf88cd08 in ?? () #49 0xb78385cc in g_slice_free1 () from /usr/lib/libglib-2.0.so.0 Backtrace stopped: previous frame inner to this frame (corrupt stack?) Someone can suggest how I can get something more useful out of this? Where should I add a breakpoint? Kurt -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]