From nobody@FreeBSD.org  Tue Sep 10 04:50:58 2002
Return-Path: <nobody@FreeBSD.org>
Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 84ECA37B400
	for <freebsd-gnats-submit@FreeBSD.org>; Tue, 10 Sep 2002 04:50:58 -0700 (PDT)
Received: from www.freebsd.org (www.FreeBSD.org [216.136.204.117])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 49A3143E42
	for <freebsd-gnats-submit@FreeBSD.org>; Tue, 10 Sep 2002 04:50:58 -0700 (PDT)
	(envelope-from nobody@FreeBSD.org)
Received: from www.freebsd.org (localhost [127.0.0.1])
	by www.freebsd.org (8.12.4/8.12.4) with ESMTP id g8ABovOT085958
	for <freebsd-gnats-submit@FreeBSD.org>; Tue, 10 Sep 2002 04:50:57 -0700 (PDT)
	(envelope-from nobody@www.freebsd.org)
Received: (from nobody@localhost)
	by www.freebsd.org (8.12.4/8.12.4/Submit) id g8ABov20085957;
	Tue, 10 Sep 2002 04:50:57 -0700 (PDT)
Message-Id: <200209101150.g8ABov20085957@www.freebsd.org>
Date: Tue, 10 Sep 2002 04:50:57 -0700 (PDT)
From: valery brasseur <valery.brasseur@atosorigin.com>
To: freebsd-gnats-submit@FreeBSD.org
Subject: panic in nfs_get 
X-Send-Pr-Version: www-1.0

>Number:         42629
>Category:       kern
>Synopsis:       panic in nfs_get
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Sep 10 05:00:08 PDT 2002
>Closed-Date:    Fri Oct 31 19:13:03 PST 2003
>Last-Modified:  Fri Oct 31 19:13:03 PST 2003
>Originator:     valery brasseur
>Release:        4.7-PRERELEASE (upgrade for 4.6.2)
>Organization:
atosorigin
>Environment:
FreeBSD wana01.priv.atos.fr 4.7-PRERELEASE FreeBSD 4.7-PRERELEASE #2: Tue Sep 10 11:04:43 CEST 2002     root@wana01.priv.atos.fr:/usr/src/sys/compile/DL360  i386
>Description:
whene using NFS mount from NetApp server, under load after a few minutes the machine panic with :

trap 12 supervisor write, page not present.

the trace back is :

stop at : generic_bzero

in :
nfs_get + 0x13c
nfs_lookup+0xf0f
lookups+0x291
namei+0x15c
vn_open+0x1d3
open+0xb8
syscall2+0x221

savecore done but doesn't give details  (can't read memory at ...)


>How-To-Repeat:
mount nfs partition form NetApp server with -3 (nfs v3)

expose mounted partition to sufficient high load...

note : light use of partition doesn't expose the probleme.

>Fix:
      
>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->feedback 
State-Changed-By: kris 
State-Changed-When: Sat Oct 11 01:33:04 PDT 2003 
State-Changed-Why:  
Does this problem persist?  If so, please obtain a debugging traceback as described in 

http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug.html 

http://www.freebsd.org/cgi/query-pr.cgi?pr=42629 
State-Changed-From-To: feedback->closed 
State-Changed-By: kris 
State-Changed-When: Fri Oct 31 19:12:53 PST 2003 
State-Changed-Why:  
Feedback timeout 

http://www.freebsd.org/cgi/query-pr.cgi?pr=42629 
>Unformatted:
