I have the Ubuntu Mate Daily Live 20150716 image is good, doesn't have this problem anymore. http://cdimages.ubuntu.com/ubuntu-mate/daily-live/20150716/
root@ubuntu-mate:~# uname -a Linux ubuntu-mate 4.0.0-4-generic #6-Ubuntu SMP Tue Jun 30 20:49:28 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1469579 Title: kernel crash when doing `rm -rf /root` To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1469579/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs