I've since had the X repeated restarts at least twice (X either restarts itself or hangs so I try to restart it, then restarts over and over again, requiring an Alt-SysRq-euib system restart), at least one with Firefox not open (though Thunderbird was).
Today I started the system and immediately found that Thunderbird wouldn't start (having closed it normally last time I used it; note that I began using Thunderbird only recently, so it may have been affected earlier), then found that Firefox, gedit, gnome-terminal and nautilus wouldn't start either. Backtraces, straces and valgrinds attached (sorry for lack of symbols, dpkg-query -W didn't find any debug packages; backtrace only for Thunderbird because its --debugger option doesn't pass arguments). All the valgrinds have the same error: ==4956== Invalid read of size 4 ==4956== at 0x4148114: pthread_mutex_lock (pthread_mutex_lock.c:44) ==4956== by 0x4DD1BBD: (within /usr/lib/libORBit-2.so.0.1.0) ==4956== by 0x4DD28A8: giop_recv_buffer_get (in /usr/lib/libORBit-2.so.0.1.0) ==4956== by 0x4DD733C: ORBit_small_invoke_stub (in /usr/lib/libORBit-2.so.0.1 .0) ==4956== by 0x4DD753D: ORBit_small_invoke_stub_n (in /usr/lib/libORBit-2.so.0 .1.0) ==4956== by 0x4DE3D31: ORBit_c_stub_invoke (in /usr/lib/libORBit-2.so.0.1.0) = causing SIGSEGV termination, this being the first error with the address being 0xC in gedit/gnome-terminal/nautilus and the fourth with 0x346D in firefox. ** Attachment added: "021007traces.tgz" http://launchpadlibrarian.net/9669990/021007traces.tgz -- Randomly crashing (SIGSEGV/SIGPIPE) https://bugs.launchpad.net/bugs/78809 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs