It's not exactly the same, but I see the following during reboot, when testing Xubuntu 18.04 daily ISO (2018-04-21), on VirtualBox 4.3 installed on a trusty system.
[ 118.XXXXXX] print_req_error: I/O error, dev sr0, sector 1178984 [ 118.XXXXXX] print_req_error: I/O error, dev loop0, sector 1177462 References: http://cdimage.ubuntu.com/xubuntu/daily-live/current/ https://www.google.com/search?q=launchpad+print_req_error%3A+I%2FO+error%2C+dev+sr0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1740289 Title: print_req_error: critical target error, dev sr0, sector 2097136 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1740289/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
