Comment 24 for bug 1555237

Here's some updated info on the "compiz crash" bug:

1- the "crash" only occurs in amd64 systems (in i386 I am able to successfully dist-upgrade)
2- it is not a "compiz crash". Xserver stops because it receives the SIGKILL signal => compiz, metacity and other wm stop as a consequence of that (https://paste.ubuntu.com/15537883/ <-gdb output)
3- after the crash the kernel hasn't created an initrd => on reboot we get a kernel panic
4- andrea noticed that the bug occurs after a udev restart

my syslog in case that systemd is sending the sigkill: http://pastebin.com/VJLsg8Ce