From owner-freebsd-current Wed Nov 14 11: 1: 7 2001 Delivered-To: freebsd-current@freebsd.org Received: from apollo.backplane.com (apollo.backplane.com [216.240.41.2]) by hub.freebsd.org (Postfix) with ESMTP id A941737B417; Wed, 14 Nov 2001 11:01:02 -0800 (PST) Received: (from dillon@localhost) by apollo.backplane.com (8.11.6/8.9.1) id fAEJ12e81627; Wed, 14 Nov 2001 11:01:02 -0800 (PST) (envelope-from dillon) Date: Wed, 14 Nov 2001 11:01:02 -0800 (PST) From: Matthew Dillon Message-Id: <200111141901.fAEJ12e81627@apollo.backplane.com> To: John Baldwin Cc: David Wolfskill , current@FreeBSD.ORG Subject: Re: RE: lock order reversal for today's -CURRENT References: 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 :On 14-Nov-01 David Wolfskill wrote: :> Built & booted today's -CURRENT; saw the following on the console & in :> /var/log/messages: :> :> Nov 14 08:59:25 localhost /boot/kernel/kernel: lock order reversal :> Nov 14 08:59:25 localhost /boot/kernel/kernel: 1st 0xc0427980 dev_pager :> create @ /usr/src/sys/vm/device_pager.c:143 :> Nov 14 08:59:25 localhost /boot/kernel/kernel: 2nd 0xc03feca0 pool mutex @ :> /usr/src/sys/kern/kern_sx.c:329 : :This is due to the sx worker locks not using MTX_NOWITNESS with the pool mutex :changes. It's not a problem though. : :-- : :John Baldwin <>< http://www.FreeBSD.org/~jhb/ Would it make sense for me to add a new MTX flag that disables certain non-applicable warnings? -Matt Matthew Dillon To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message