Many thanks. My LVM system now starts successfully, albeit still showing the 60s hang occasionally. Even the supposed-to-be-affected logical volume is mounted correctly. Just the "/sbin/lvm vgchange -a y" persists in the process list, but this apparently does not harm.
One additional note I want to make: I'd set the udevadm-control timeout at least to 70 seconds. The epoll_wait timeout is reset every time something happens. So if the "settle time" is bigger than 1 second, the total timeout would be more than 61 seconds of udevadm-control. Setting the timeout to 70 seconds, gives us at least 10 seconds "settle time". My conclusion is that "udevadm control --exit" (introduced in april) is still a bit immature, and further races might wait to happen. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/818177 Title: boot failures because 'udevadm exit' times out while udevd waits for an already-dead thread To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-release-notes/+bug/818177/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
