Date: Thu, 16 Aug 2012 16:07:32 -0400 (EDT) From: Mark Saad <msaad@about.com> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/170680: Multiple NFS Client bug in the FreeBSD 7.4-RELEASE Message-ID: <201208162007.q7GK7WKM031776@nymirror1.ops.about.com> Resent-Message-ID: <201208162020.q7GKKB9G097476@freefall.freebsd.org>
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>Number: 170680
>Category: kern
>Synopsis: Multiple NFS Client bug in the FreeBSD 7.4-RELEASE
>Confidential: no
>Severity: critical
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Thu Aug 16 20:20:11 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator: Mark Saad
>Release: FreeBSD 7.4-RELEASE-p9 amd64
>Organization:
About.com
>Environment:
System: FreeBSD highwire 7.4-RELEASE-p9 FreeBSD 7.4-RELEASE-p9 #0: Mon Jun 11 19:47:58 UTC 2012 root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64
>Description:
There are multiple NFS client bugs that need to be fixed in the FreeBSD 7.4-RELEASE code base that have been fixed in 8-STABLE, 8.3-RELEASE 9-STABLE and HEAD. Here is a list of the relevant MFCs 194358,230394,230441,230489,230552,232116,232420 and r227059
This code has now been in 7-STABLE for two weeks .
>How-To-Repeat:
Running multiple 7.4-RELEASE servers that uses NFS mount directories there exists two nasty issue. If client a reads a file o r directory as client b changes the file or directory , in a short enough amount of time, client a never sees the file or directory changed and it will see old data and attributes for this object until it attempts to write to it . Secondly when multiple NFS client using lockd, are under a moderate work load the client will crash due to a rpc bug brought about by high rates of locking.
>Fix:
The following MFCs need to be merged into the 7.4-RELEASE branch. MFCs 194358,230394,230441,230489,230552,232116,232420 and r22
7059
>Release-Note:
>Audit-Trail:
>Unformatted:
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