From nobody  Thu Jun 11 07:39:55 1998
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Date: Thu, 11 Jun 1998 07:39:55 -0700 (PDT)
From: froden@bigblue.no
To: freebsd-gnats-submit@freebsd.org
Subject: FreeBSD 2.2.6-RELEASE and NFS is UNSTABLE
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>Number:         6914
>Category:       kern
>Synopsis:       FreeBSD 2.2.6-RELEASE and NFS is UNSTABLE
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Jun 11 07:40:02 PDT 1998
>Closed-Date:    Fri May 21 14:20:51 PDT 1999
>Last-Modified:  Fri May 21 14:22:15 PDT 1999
>Originator:     Frode Nordahl
>Release:        FreeBSD 2.2.6-STABLE Wed Jun 10 16:59:04 CEST 1998
>Organization:
Computer Tjenester AS
>Environment:
FreeBSD login.bigblue.no 2.2.6-STABLE FreeBSD 2.2.6-STABLE #0: Wed Jun 10 16:59:04 CEST 1998     froden@login.bigblue.no:/archive/src/sys/compile/LOGIN  i386
>Description:
FreeBSD 2.2.6-STABLE and 2.2.6-RELEASE are very unstable once NFS server and/or client are used.  Network interface dies under heavy trafic (2.2.6-STABLE, dated Jun 10 1998), or the whole machine freezes (2.2.6-RELEASE older version Mar 98).

The only evidence in the log files are some nfsd or nfsiod error messages before the whole machine crashes.
>How-To-Repeat:
Just fire up two FreeBSD boxes with a NFS server/client and have some fun with the NFS shares, like doing make installworld over a NFS share.  Shure killer.  The server will eventually freeze, or do any other strange things.

This have been tried on two totally difrent computers running two different versions of FreeBSD 2.2.6.  And the both crash (in diferent ways thogh.)
>Fix:

>Release-Note:
>Audit-Trail:

From: sysadmin@mfn.org
To: freebsd-gnats-submit@freebsd.org, froden@bigblue.no
Cc:  Subject: Re:kern/6914:FreeBSD2.2.6-RELEASEandNFSisUNSTABLE
Date: Thu, 24 Dec 1998 20:03:44 -0600 (CST)

 We have noticed this as well, under 2.2.5-R.  The only indication we ahve
 seen *reliably* is that the NFS clients seem to hang in state NFSAIO.  In
 addition, we have noticed a great deal of "nfs server ... not responding"
 messages which are *immediately* followed by "nfs server ok" messages.  These
 appear so fast as to have the same timestamps, yet the clients are still
 in NFSAIO, and the file systems are unresponsive.
 
State-Changed-From-To: open->closed 
State-Changed-By: obrien 
State-Changed-When: Fri May 21 14:20:51 PDT 1999 
State-Changed-Why:  
Many NFS bugs have been fixed in 4.0-CURRENT and some of them back ported to 
3.2-RELEASE.  More NFS problems will be fixed in 3.3-RELEASE, as they the fixes 
needed more testing than the 3.2-RELEASE schdedule would allow. 
>Unformatted:
