These crash reports are caused by a bug in plymouth, the boot-time splash screen. Sometimes the errors are not reported for quite a while after the crash actually happens.
If someone here is able to reproduce this bug reliably, please do the following: - edit /etc/default/grub so that GRUB_CMDLINE_LINUX_DEFAULT is set to "quiet splash plymouth:debug" - run sudo update-grub - reboot, and when you receive the prompt asking whether to report a crash about plymouthd, say "yes" - attach /var/log/plymouth-debug.log to the new bug report ** Changed in: plymouth (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/849414 Title: plymouthd crashed with SIGSEGV in ply_event_loop_process_pending_events() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/849414/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs