Why won't 8.2 umount -f?

Doug Barton dougb at FreeBSD.org
Mon Feb 13 21:21:20 UTC 2012

On 02/13/2012 13:02, Doug Barton wrote:
> Is there some magic I'm missing to convince an 8.2 system to umount -f?
> I had an NFS server crash, so I'm trying to get the mounts updated. All
> of the 7.x systems happily did 'umount -f', but the 8.x systems (mostly
> 8.2-pN) are just hanging forever.

... and it gets worse. I just 'shutdown -r now'ed one of my
less-critical 8.2 systems, and it hung for several minutes after "All
buffers synced." After a power cycle it came back, but the buffers
weren't actually synced because it's still fsck'ing some pretty large
file systems.

What the heck?


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