[Bug 195458] Hang on shutdown/root unmount after FreeBSD 10.1R upgrade

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195458

--- Comment #67 from elofu17 at hotmail.com ---
Has anyone had any luck debugging this critical issue?

1)
A normal upgrade+reboot always freeze the machine permanently. :-(

2)
A normal upgrade+reboot, followed by 'shutdown now', entering single user mode
and finally rebooting from there always reboot my machine after a 20 second
timeout.
Better, but still not a solution since I need ssh-access to do this remotely
(no iLO/IPMI/KVM exists).

3)
A normal upgrade+reboot, followed by 'shutdown -ron now' (to prevent filesystem
cache from being flushed) always make my machine reboot immediately as it
should.
However, this too is not a perfect workaround since the filesystem gets
corrupted.



Given these three scenarios, and because they are reproduceable every time, I
hope a soluction will be found soon.
FreeBSD 10.0 is now unsupported so us FreeBSD users need to upgrade all our
machines. In my case this is >100 machines located all over the world.

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