From owner-freebsd-bugs Fri Feb 13 20:38:20 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id UAA25475 for freebsd-bugs-outgoing; Fri, 13 Feb 1998 20:38:20 -0800 (PST) (envelope-from owner-freebsd-bugs@FreeBSD.ORG) Received: from pat.idi.ntnu.no (0@pat.idi.ntnu.no [129.241.103.5]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id UAA25435 for ; Fri, 13 Feb 1998 20:38:06 -0800 (PST) (envelope-from Tor.Egge@idi.ntnu.no) Received: from idi.ntnu.no (tegge@presis.idi.ntnu.no [129.241.111.173]) by pat.idi.ntnu.no (8.8.8/8.8.8) with ESMTP id EAA02579; Sat, 14 Feb 1998 04:59:15 +0100 (MET) Message-Id: <199802140359.EAA02579@pat.idi.ntnu.no> To: wollman@khavrinen.lcs.mit.edu Cc: freebsd-bugs@hub.freebsd.org Subject: re: kern/1067: panic: ufs_lock: recursive lock not expected, pid: 27195 In-Reply-To: Your message of "Fri, 13 Feb 1998 21:45:12 -0500 (EST)" References: <199802140245.VAA28222@khavrinen.lcs.mit.edu> X-Mailer: Mew version 1.70 on Emacs 19.34.1 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Date: Sat, 14 Feb 1998 04:59:15 +0100 From: Tor Egge Sender: owner-freebsd-bugs@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > Gack. I don't see any good reason for such a change (other than the > dubious example of compatibility with Slowaris). Mount points should > not be treated any differently than any other directories. Since MNT_UPDATE is implicit for "/" (which I did not notice when I started writing my reply to kern/1067) and the "-a" option for the mount command does not cause already-mounted filesystems to be mounted again, you are correct. Based upon the manual page and the system call implementation, I mistakenly concluded that the change was useful in order to prevent an accidental mount of a different file system at '/'. This is indeed impossible using the mount command. Those using the mount system call directly probably knows what they are doing. Consider that part of the suggested fix withdrawn. - Tor Egge To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message