kern/107132: Imediate reboot with "umount -f" of umass removed device.

[Joao Rocha Braga Filho]

>Number:         107132
>Category:       kern
>Synopsis:       Imediate reboot with "umount -f" of umass removed device.
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Dec 23 09:00:20 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     Joao Rocha Braga Filho
>Release:        6.2-PRERELEASE
>Organization:
Paratyinfo
>Environment:
FreeBSD goffredo.paratyinfo.com.br 6.2-PRERELEASE FreeBSD 6.2-PRERELEASE #4: Thu Dec 14 06:32:08 BRST 2006     goffredo at goffredo.paratyinfo.com.br:/usr/obj/usr/src/sys/GOFFREDO  amd64

>Description:
I mounted a Samsung digital camera as umass. It was removed without making umount.

The mount command showed the device mounted, but it was unpluged. The umount command did not umounted, so, I used "umount -f" to remove it. The system frozen 1 second, and reboot, without any panic message.
>How-To-Repeat:
I did not repeated the experiment, and the digital camera wasn't here anymore.

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: