Comment 24 for bug 78809

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.