I observed a similar problem on a Dell Optiplex 330. The error message is almost the same except for the e1000 line:
sd 0:0:0:0: [sda] Synchronizing SCSI cache Restarting system. machine restart -- Dell Dimension 9200 stalls when rebooting after installing 20080917 https://bugs.launchpad.net/bugs/271370 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