From nobody@FreeBSD.org  Sat Dec 23 08:51:42 2006
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Message-Id: <200612230851.kBN8pfwY021318@www.freebsd.org>
Date: Sat, 23 Dec 2006 08:51:41 GMT
From: Joao Rocha Braga Filho<goffredo@gmail.com>
To: freebsd-gnats-submit@FreeBSD.org
Subject: Imediate reboot with "umount -f" of umass removed device.
X-Send-Pr-Version: www-3.0

>Number:         107132
>Category:       kern
>Synopsis:       Imediate reboot with "umount -f" of umass removed device.
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Dec 23 09:00:20 GMT 2006
>Closed-Date:    Sat Dec 23 09:27:13 GMT 2006
>Last-Modified:  Sat Dec 23 12:50:22 GMT 2006
>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@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:
State-Changed-From-To: open->closed 
State-Changed-By: remko 
State-Changed-When: Sat Dec 23 09:26:15 UTC 2006 
State-Changed-Why:  
Can you please defer to the USB mailinglist to get some research on this first? 
You can find the list on http://lists.freebsd.org/mailman/listinfo/freebsd-usb 
this is not a PR yet. Thanks for using FreeBSD though! 

http://www.freebsd.org/cgi/query-pr.cgi?pr=107132 

From: "Andrey V. Elsukov" <bu7cher@yandex.ru>
To: goffredo@gmail.com
Cc: freebsd-gnats-submit@FreeBSD.org
Subject: Re: kern/107132: Imediate reboot with "umount -f" of umass removed device.
Date: Sat, 23 Dec 2006 15:32:06 +0300 (MSK)

 >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.
 
 This is a well known bug.
 http://www.freebsd.org/cgi/query-pr-summary.cgi?text=umount
 
 -- 
 WBR, Andrey V. Elsukov
>Unformatted:
