From owner-freebsd-bugs Thu Aug 24 6:50: 7 2000 Delivered-To: freebsd-bugs@freebsd.org Received: from freefall.freebsd.org (freefall.FreeBSD.org [216.136.204.21]) by hub.freebsd.org (Postfix) with ESMTP id E284B37B43C for ; Thu, 24 Aug 2000 06:50:05 -0700 (PDT) Received: (from gnats@localhost) by freefall.freebsd.org (8.9.3/8.9.2) id GAA63998; Thu, 24 Aug 2000 06:50:05 -0700 (PDT) (envelope-from gnats@FreeBSD.org) Date: Thu, 24 Aug 2000 06:50:05 -0700 (PDT) Message-Id: <200008241350.GAA63998@freefall.freebsd.org> To: freebsd-bugs@FreeBSD.org Cc: From: Poul-Henning Kamp Subject: Re: kern/20804: deadlocking when using vnode disk file and quotas Reply-To: Poul-Henning Kamp Sender: owner-freebsd-bugs@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org The following reply was made to PR kern/20804; it has been noted by GNATS. From: Poul-Henning Kamp To: Robert Watson Cc: freebsd-gnats-submit@FreeBSD.org, Sheldon Hearn Subject: Re: kern/20804: deadlocking when using vnode disk file and quotas Date: Thu, 24 Aug 2000 15:43:02 +0200 In message , Robe rt Watson writes: > >Poul-Henning, > >Do you have a chance to look at this bug, which was raised on -fs >recently? It has to do, I believe, with a recursive lock/deadlock issue >relating to the md device and the UFS quota implementation, presumably a >lock ordering issue relating to the md device vnode lock and the vnode >lock for the quota data file on that file system. I haven't had a chance >to look much further, and apparently it mostly manifests in jail (I'm not >sure I understand why that might be the case -- possibly having to do with >the starting point (root) for recursive name lookups with lock requests). > >Thanks, > > Robert N M Watson Robert, No I haven't even looked at it. The jail stuff doesn't even know what a lock is, much less touch one, so the jail involvement was not enough to make me put it on my busy schedule... -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD coreteam member | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message