kern/114672: Kernel hangs when Coda file system is mounted a second
time
Jan Harkes
jaharkes at cs.cmu.edu
Tue Jul 17 19:00:09 UTC 2007
>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 at 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 at delft.aura.cs.cmu.edu>
>Release-Note:
>Audit-Trail:
>Unformatted:
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