I actually am having the exact same problem, right down to the lead-up. After resuming from suspend I found myself unable to connect to wireless networks, so I tried restarting networking with 'service networking restart'. lightdm and everything under it immediately went down hard. I was able to get to a VT, and when I tried to 'service lightdm start', the computer stopped responding to keyboard input, and shut down when I tapped the power button. Upon restarting, I tried to restart networking immediately after logging in, and the window manager ended up trapped in a restart loop. I then tried booting to the login screen, switching to a VT, stopping lightdm, restarting networking, and starting lightdm, but lightdm fails to start.
Cursory examination of the logs provided by the original reporter indicate that our hardware is radically different. This leads me to be skeptical of the memory hardware diagnosis. It seems outlandishly improbable that two completely different computers would experience reproducible corruption of the same byte of kernel memory without any other discernable memory errors. This is 100% reproducible on my system. Do you need anything from me? -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1235516 Title: service networking restart causes Xorg crash To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1235516/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
