kern/45338: smbfs: unmount hang at shutdown

[jmcneill%invisible.ca@localhost]

>Number:         45338
>Category:       kern
>Synopsis:       smbfs: unmount hang at shutdown
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Sep 07 21:30:00 +0000 2011
>Originator:     Jared McNeill
>Release:        5.99.55
>Organization:
>Environment:
>Description:
When rebooting with /sbin/reboot, the kernel hangs at "unmounting 
filesystems..." if an smbfs share is mounted.
>How-To-Repeat:
# mount -t smbfs //jmcneill@ramjet.local/videos /mnt
# mplayer /mnt/polka.ts
# reboot
>Fix: