From owner-freebsd-bugs  Tue Sep 24 15:20:13 1996
Return-Path: owner-bugs
Received: (from root@localhost)
          by freefall.freebsd.org (8.7.5/8.7.3) id PAA21341
          for bugs-outgoing; Tue, 24 Sep 1996 15:20:13 -0700 (PDT)
Received: (from gnats@localhost)
          by freefall.freebsd.org (8.7.5/8.7.3) id PAA21282;
          Tue, 24 Sep 1996 15:20:07 -0700 (PDT)
Resent-Date: Tue, 24 Sep 1996 15:20:07 -0700 (PDT)
Resent-Message-Id: <199609242220.PAA21282@freefall.freebsd.org>
Resent-From: gnats (GNATS Management)
Resent-To: freebsd-bugs
Resent-Reply-To: FreeBSD-gnats@freefall.FreeBSD.org, nsayer@quack.kfu.com
Received: from quack.kfu.com (quack.kfu.com [204.147.226.1])
          by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id PAA19660
          for <FreeBSD-gnats-submit@freebsd.org>; Tue, 24 Sep 1996 15:15:58 -0700 (PDT)
Received: from morpheus.kfu.com (morpheus.kfu.com [204.147.226.4]) by quack.kfu.com (8.6.12/8.6.12) with ESMTP id PAA27380 for <FreeBSD-gnats-submit@freebsd.org>; Tue, 24 Sep 1996 15:15:52 -0700
Received: by morpheus.kfu.com 
        (8.7.5//ident-1.0) id PAA04244; Tue, 24 Sep 1996 15:15:49 -0700 (PDT) 
Message-Id: <199609242215.PAA04244@morpheus.kfu.com>
Date: Tue, 24 Sep 1996 15:15:49 -0700 (PDT)
From: nsayer@quack.kfu.com
Reply-To: nsayer@quack.kfu.com
To: FreeBSD-gnats-submit@freebsd.org
X-Send-Pr-Version: 3.2
Subject: kern/1676: NFS V3 client causes panic
Sender: owner-bugs@freebsd.org
X-Loop: FreeBSD.org
Precedence: bulk


>Number:         1676
>Category:       kern
>Synopsis:       NFS V3 client causes panic
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Sep 24 15:20:04 PDT 1996
>Last-Modified:
>Originator:     Nick Sayer
>Organization:
just me
>Release:        FreeBSD 2.2-960801-SNAP i386
>Environment:

NFS server is stock 2.2-960801-SNAP P-Pro 200 w/ AHA-2940 & 3G partition
Client is Solaris 2.5.1 on SS10

>Description:

Solaris defaults to using NFS V3. Aparently, so does this snapshot, since
I did nothing I know of in the kernel config to ask for it (options NFS,
FAILSAFE among others, but nothing about V3)

>How-To-Repeat:

solaris# mount -o rw,soft,bg,intr freebsd:/foo /mnt
solaris# cd /mnt
solaris# ls

At this point the FreeBSD machine panics with

ufs_ihashget: recursive lock not expected -- pid %d

Adding vers=2 to the -o list in the mount prevents this.

>Fix:

>Audit-Trail:
>Unformatted: