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Date:      Tue, 17 Jul 2007 18:54:09 GMT
From:      Jan Harkes <jaharkes@cs.cmu.edu>
To:        freebsd-gnats-submit@FreeBSD.org
Subject:   kern/114672: Kernel hangs when Coda file system is mounted a second time
Message-ID:  <200707171854.l6HIs9Ym069278@www.freebsd.org>
Resent-Message-ID: <200707171900.l6HJ08vl018020@freefall.freebsd.org>

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>Number:         114672
>Category:       kern
>Synopsis:       Kernel hangs when Coda file system is mounted a second time
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Jul 17 19:00:08 GMT 2007
>Closed-Date:
>Last-Modified:
>Originator:     Jan Harkes
>Release:        FreeBSD-CURRENT (7.0)
>Organization:
>Environment:
FreeBSD freebsd.local 7.0-CURRENT #8: Thu Jul 12 05:31:49 EDT 2007 root@freebsd.local:/usr/obj/usr/src/sys/GENERIC i386
>Description:
Coda obtains a reference to a 'control vnode' during the mount, but never releases this reference. During the mount the vnode is flagged as S_UNMOUNTING. Then when the file system is mounted a second time the kernel hangs, possibly waiting for the old vnode to disappear.

The attached patch fixes the problem,
>How-To-Repeat:

>Fix:
For some reason I'm getting the following error when trying to attach the patch file with firefox.

There is an error with your problem report submission. The problem was: Patch file has wrong content type: got application/octet-stream but was expecting one matching text/.* or application/shar.

I also sent it to freebsd-fs, message-id is <20070717183651.GA16599@delft.aura.cs.cmu.edu>

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



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