This can happen if libvirtd is stopped unexpectedly (crash, kill -9). I doubt it is the upstart job (though I haven't looked at it).
-- error : qemudWritePidFile:498 : Failed to open pid file '/var/run/libvirtd.pid' : File exists https://bugs.launchpad.net/bugs/510658 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