From owner-freebsd-stable Fri Oct 18 8:16:10 2002 Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id D59B837B401 for ; Fri, 18 Oct 2002 08:16:09 -0700 (PDT) Received: from salmon.maths.tcd.ie (salmon.maths.tcd.ie [134.226.81.11]) by mx1.FreeBSD.org (Postfix) with SMTP id 809BA43E9C for ; Fri, 18 Oct 2002 08:16:08 -0700 (PDT) (envelope-from iedowse@maths.tcd.ie) Received: from walton.maths.tcd.ie by salmon.maths.tcd.ie with SMTP id ; 18 Oct 2002 16:16:07 +0100 (BST) To: Chris BeHanna Cc: FreeBSD-Stable Subject: Re: FFS Panic in 4.7 In-Reply-To: Your message of "Fri, 18 Oct 2002 09:10:06 EDT." <20021018090248.U667-300000@topperwein.dyndns.org> Date: Fri, 18 Oct 2002 16:16:06 +0100 From: Ian Dowse Message-ID: <200210181616.aa29895@salmon.maths.tcd.ie> Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG In message <20021018090248.U667-300000@topperwein.dyndns.org>, Chris BeHanna wr ites: > The triggering event was an attempt to dereference a null vnode >pointer at /usr/src/sys/ufs/ffs/ffs_vfsops.c, line 996. I've attached >my kernel config and a dmesg. >#3 0xc02f3bcc in trap_fatal (frame=0xddce3d48, eva=999176615) Note that the `eva=999176615' above means that it was not a NULL dereference - gdb is probably just confused about the value of `vp'. The values of `eva' and `tf_eax' suggest that in fact it was trying to dereference `ip', but `ip' contained the junk value 0x3b8e3977. That could indicate some kind of memory corruption... What does `p *mp->mnt_nvnodelist.tqh_first' print? Ian To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message