Re: [Bug 266929] Re: metacity crashed with SIGSEGV in __libc_start_main()
Hi there, I think the problem is caused by conflicting configuration of PAM and Unix Consolekit along with faulty setting of ~/.dmrc and ~/.dbus. This causes crashes due to permission errors in /var/run/dbus/system_bus_socket and crashes a variety of applications including (not exhaustive): hald-volume-manager canberra-play-gtk jockey-gtk console-kit-daemon pulseaudio compiz compiz.real x-session-manager ... I will document this further shortly. Cheers, Thomas - Original Message From: Thomas Thurman [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Saturday, October 18, 2008 4:44:45 PM Subject: [Bug 266929] Re: metacity crashed with SIGSEGV in __libc_start_main() I'm still bewildered. Someone reports a crash in Metacity. Someone else says he doesn't use Metacity (so what?). And now you point to a crash in consolekit. I can only see the relevance of the first one. Sorry if I'm being stupid. -- metacity crashed with SIGSEGV in __libc_start_main() https://bugs.launchpad.net/bugs/266929 You received this bug notification because you are a direct subscriber of the bug. __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- metacity crashed with SIGSEGV in __libc_start_main() https://bugs.launchpad.net/bugs/266929 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 266929] Re: metacity crashed with SIGSEGV in __libc_start_main()
Hi Thomas, That is exactly the problem in fact. If you run dpkg-reconfigure debconf -p low and select text mode and priority low, followed by dpkg-reconfigure -ap low you will get configuration questions of the type: use: 1. unix authentication 2. consolekit 3. likewise 4. ... The choices should be seperated by a space: 1 2 3 If you select everything and then change your /home folder: sudo chmod -cR 777 /home* ; sudo -cR chown -cR 1000 /home/* you will get faulty ~/.dmrc and ~/.dbus settings. Many users will do that because they cannot remove installation files from their home folder through nautilus gui (to save space for instance). If you start: $ sudo nautilus you can change the permissions, but only one by one. I suspect that is the problem. Since your different authentication methods conflict, you experience a wide variety of crashes. To get a backtrace you should start valgrind 'previously crashed process' and then gdb 21 | gdb-previously_crashed_process and use gdb attach pid (check with pidof or ps -A). The problem is that most crashes are fatal, requiring reboot and which application will crash is unpredictable. I have not been able to backtrace this properly, I am currently searching the proper debug symbols: 'apt-cache search packagename | grep dbg'. Could you try this out on VirtualBox or VMWare or a dedicated testing machine, or better yet a server with many partitions? It could work, I promise. - Original Message From: Thomas Thurman [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Saturday, October 18, 2008 5:30:16 PM Subject: [Bug 266929] Re: metacity crashed with SIGSEGV in __libc_start_main() Then this can't be a Metacity problem. Metacity doesn't use ConsoleKit or DBus. -- metacity crashed with SIGSEGV in __libc_start_main() https://bugs.launchpad.net/bugs/266929 You received this bug notification because you are a direct subscriber of the bug. __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- metacity crashed with SIGSEGV in __libc_start_main() https://bugs.launchpad.net/bugs/266929 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 266929] Re: metacity crashed with SIGSEGV in __libc_start_main()
Hi Thomas, Metacity is an X Window manager. All applications such as xserver-xorg Xorg gnome-session metacity compiz and such require authorization from PAM or consolekit. In fact I got this very crash twice, once with compiz loop in event ... and another time with only metacity. The crash occured for instance by just '$ x-session-manager' after I head already called '$ sudo valgrind stuff, see wiki compiz. - Original Message From: Thomas Thurman [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Saturday, October 18, 2008 6:29:48 PM Subject: [Bug 266929] Re: metacity crashed with SIGSEGV in __libc_start_main() Please, please, please, tell me what this has to do with Metacity. I didn't see a mention of Metacity anywhere in your reply. -- metacity crashed with SIGSEGV in __libc_start_main() https://bugs.launchpad.net/bugs/266929 You received this bug notification because you are a direct subscriber of the bug. __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- metacity crashed with SIGSEGV in __libc_start_main() https://bugs.launchpad.net/bugs/266929 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
