From owner-freebsd-current Sat Oct 5 10:12:26 2002 Delivered-To: freebsd-current@freebsd.org Received: from green.bikeshed.org (freefall.freebsd.org [216.136.204.21]) by hub.freebsd.org (Postfix) with ESMTP id B444537B401; Sat, 5 Oct 2002 10:12:24 -0700 (PDT) Received: from green.bikeshed.org (ukhyvr6qsx0uk0b1@green.bikeshed.org [10.0.0.1] (may be forged)) by green.bikeshed.org (8.12.6/8.12.6) with ESMTP id g95HCOiq012229; Sat, 5 Oct 2002 13:12:24 -0400 (EDT) (envelope-from green@green.bikeshed.org) Received: from localhost (green@localhost) by green.bikeshed.org (8.12.6/8.12.6/Submit) with ESMTP id g95HCOLw012226; Sat, 5 Oct 2002 13:12:24 -0400 (EDT) Message-Id: <200210051712.g95HCOLw012226@green.bikeshed.org> X-Mailer: exmh version 2.5 07/13/2001 with nmh-1.0.4 To: "Steven G. Kargl" Cc: freebsd-current@freebsd.org, kirk@freebsd.org Subject: Re: panic from _mutex_assert in kern_lock.c In-Reply-To: Your message of "Sat, 05 Oct 2002 08:36:12 PDT." <200210051536.g95FaC1P012967@troutmask.apl.washington.edu> From: "Brian F. Feldman" Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sat, 05 Oct 2002 13:12:24 -0400 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG "Steven G. Kargl" wrote: > The source tree was retrieved by cvsup > at 21:47 (PST) on Oct 4. > > This is a non-GEOM and non-acpi kernel. > > I have the core and kernel.debug, so any > further postmortem is possible. I think the problem is that in src/sys/ufs/ffs/ ffs_snapshot.c:ffs_snapshot(), as the mnt vnode list is traversed none of the vnodes ("xvp") would actually GET VI_LOCK()ed in the first place, and so the LK_INTERLOCK is bogus in the vn_lock() call. Kirk would know for sure what to do about this... -- Brian Fundakowski Feldman \'[ FreeBSD ]''''''''''\ <> green@FreeBSD.org <> bfeldman@tislabs.com \ The Power to Serve! \ Opinions expressed are my own. \,,,,,,,,,,,,,,,,,,,,,,\ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message