Date: Thu, 24 Aug 2000 06:40:06 -0700 (PDT) From: Robert Watson <rwatson@FreeBSD.org> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/20804: deadlocking when using vnode disk file and quotas Message-ID: <200008241340.GAA29266@freefall.freebsd.org>
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The following reply was made to PR kern/20804; it has been noted by GNATS. From: Robert Watson <rwatson@FreeBSD.org> To: phk@FreeBSD.org Cc: freebsd-gnats-submit@FreeBSD.org, Sheldon Hearn <sheldonh@uunet.co.za> Subject: Re: kern/20804: deadlocking when using vnode disk file and quotas Date: Thu, 24 Aug 2000 09:39:17 -0400 (EDT) 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@fledge.watson.org http://www.watson.org/~robert/ PGP key fingerprint: AF B5 5F FF A6 4A 79 37 ED 5F 55 E9 58 04 6A B1 TIS Labs at Network Associates, Safeport Network Services ---------- Forwarded message ---------- Date: Thu, 24 Aug 2000 11:19:33 +0200 From: Sheldon Hearn <sheldonh@uunet.co.za> To: rwatson@freebsd.org Cc: freebsd-gnats-submit@freebsd.org Subject: Re: kern/20804: deadlocking when using vnode disk file and quotas On Wed, 23 Aug 2000 09:32:12 MST, chrisx77@hotmail.com wrote: > >Number: 20804 > >Category: kern > >Synopsis: deadlocking when using vnode disk file and quotas [...] > This is being submitted at the request of Robert Watson. Robert, do you want this PR for yourself, or was it your intention to have it assigned to phk? Ciao, Sheldon. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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