From owner-freebsd-current Thu Oct 16 00:08:51 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id AAA10937 for current-outgoing; Thu, 16 Oct 1997 00:08:51 -0700 (PDT) (envelope-from owner-freebsd-current) Received: from sendero-ppp.i-connect.net (sendero-ppp.i-Connect.Net [206.190.143.100]) by hub.freebsd.org (8.8.7/8.8.7) with SMTP id AAA10927 for ; Thu, 16 Oct 1997 00:08:46 -0700 (PDT) (envelope-from shimon@sendero-ppp.i-connect.net) Received: (qmail 3975 invoked by uid 1000); 16 Oct 1997 07:09:13 -0000 Message-ID: X-Mailer: XFMail 1.2-beta-100797 [p0] on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <199710160509.PAA08005@godzilla.zeta.org.au> Date: Thu, 16 Oct 1997 00:09:13 -0700 (PDT) Organization: Atlas Telecom From: Simon Shapiro To: Bruce Evans Subject: Re: lockmgr panic Cc: j@uriah.heep.sax.de, freebsd-current@FreeBSD.ORG Sender: owner-freebsd-current@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk Hi Bruce Evans; On 16-Oct-97 you wrote: > >Speaking of bandaids, would anybody mind me committing Mr. KATO's > >fix/hack? (Of course, unless he's going to commit it himself.) The > >patch seems to solve the vn(4) lockmgr problem. > > I think it substitutes panics with deadlock possibilities. Perhaps > the deadlocks are rare. Nope. Easy to do. Sometimes during boot. There is a timong or hardware component to this, as we see it in the manufacturing lab; Same disk, same install, replace a motherboard and its gone. > >I haven't made a release on a 2.2.5-BETA system lately. If the > >problem there is the same, i would vote for moving the fix there as > > I think the problem is the same but the symptoms are worse - endless > recursion and at best a panic for a double fault. Yup. Seen that lately, but it goes away as quickly as it comes. If you need machines to test this on, let me know. --- Sincerely Yours, Simon Shapiro Atlas Telecom Senior Architect 14355 SW Allen Blvd., Suite 130 Beaverton OR 97005 Shimon@i-Connect.Net Voice: 503.799.2313