From owner-freebsd-current Sun Jan 24 06:59:26 1999 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id GAA11191 for freebsd-current-outgoing; Sun, 24 Jan 1999 06:59:26 -0800 (PST) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from uni4nn.gn.iaf.nl (osmium.gn.iaf.nl [193.67.144.12]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id GAA11184 for ; Sun, 24 Jan 1999 06:59:23 -0800 (PST) (envelope-from wilko@yedi.iaf.nl) Received: by uni4nn.gn.iaf.nl with UUCP id AA23121 (5.67b/IDA-1.5); Sun, 24 Jan 1999 15:56:47 +0100 Received: (from wilko@localhost) by yedi.iaf.nl (8.8.8/8.6.12) id PAA12682; Sun, 24 Jan 1999 15:57:05 +0100 (CET) From: Wilko Bulte Message-Id: <199901241457.PAA12682@yedi.iaf.nl> Subject: Re: panic: found dirty cache page 0xf046f1c0 In-Reply-To: <199901240614.WAA60278@apollo.backplane.com> from Matthew Dillon at "Jan 23, 99 10:14:57 pm" To: dillon@apollo.backplane.com (Matthew Dillon) Date: Sun, 24 Jan 1999 15:57:05 +0100 (CET) Cc: current@FreeBSD.ORG X-Organisation: Private FreeBSD site - Arnhem, The Netherlands X-Pgp-Info: PGP public key at 'finger wilko@freefall.freebsd.org' X-Mailer: ELM [version 2.4ME+ PL38 (25)] Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG As Matthew Dillon wrote... > I've committed one bug fix to the 'found dirty cache page' bug -- > turns out vm_map_split() was the culprit, renaming pages > without removing them from PQ_CACHE. The bug was introduced > in -3.0, and hit the KASSERT() I put in -4.x. > > I've committed a general inlining of 'changing the page dirty > status to VM_PAGE_BITS_ALL' and put a sanity check in the inline. > If this problem occurs again, you will get a different panic. > One of: > > vm_page_dirty: page in cache! > vm_page_busy: page already busy!!! > vm_page_wakeup: page not busy!!! > > If your box drops into DDB, please get a backtrace and report > it to the list or to me and we should be able to track down > any remaining dirty-pages-in-PQ_CACHE bugs. FYI: a buildworld of -current including the above on FreeBSD/axp completed without any incidents. Wilko _ ______________________________________________________________________ | / o / / _ Bulte email: wilko@yedi.iaf.nl |/|/ / / /( (_) Arnhem, The Netherlands WWW : http://www.tcja.nl ______________________________________________ Powered by FreeBSD __________ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message