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Date: Tue, 10 Sep 2002 04:50:57 -0700 (PDT)
From: valery brasseur <valery.brasseur@atosorigin.com>
To: freebsd-gnats-submit@FreeBSD.org
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Subject: kern/42629: panic in nfs_get 
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>Number:         42629
>Category:       kern
>Synopsis:       panic in nfs_get
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Sep 10 05:00:08 PDT 2002
>Closed-Date:
>Last-Modified:
>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:
>Unformatted:

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