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Date: Sat,  4 Nov 2000 05:22:19 -0800 (PST)
From: rbt@zort.on.ca
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Subject: kern/22602: CDRoms checked during shutdown (umount)
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>Number:         22602
>Category:       kern
>Synopsis:       CDRoms checked during shutdown (umount)
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Nov 04 05:30:01 PST 2000
>Closed-Date:
>Last-Modified:
>Originator:     Rod Taylor
>Release:        4.1.1-STABLE
>Organization:
>Environment:
FreeBSD peon.zort.on.ca 4.1.1-STABLE FreeBSD 4.1.1-STABLE #0: Fri Nov  3 09:55:22 EST 2000     rbt@peon.zort.on.ca:/usr/obj/usr/src/sys/KNIGHT  i386
>Description:
CDRoms are scanned during umount.  You can notice activity during this process.

/dev/acd0c              /export/cdrom/0 cd9660  ro,noauto       0       0

It's my believe that a read only mount shouldn't need to be checked before unmounting it.
>How-To-Repeat:
Mount a cdrom, then umount it while watching for activity.  Especially noticible on cdrom changers as they have to switch disks.

In my case, shutdown takes an extra 30 seconds while the cdrom drives are unmounted.
>Fix:


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


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