From owner-freebsd-stable@FreeBSD.ORG Thu Apr 28 06:40:13 2005 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E38D416A4CE for ; Thu, 28 Apr 2005 06:40:13 +0000 (GMT) Received: from mail28.sea5.speakeasy.net (mail28.sea5.speakeasy.net [69.17.117.30]) by mx1.FreeBSD.org (Postfix) with ESMTP id AB1F443D1F for ; Thu, 28 Apr 2005 06:40:13 +0000 (GMT) (envelope-from jmg@hydrogen.funkthat.com) Received: (qmail 24107 invoked from network); 28 Apr 2005 06:40:13 -0000 Received: from gate.funkthat.com (HELO hydrogen.funkthat.com) ([69.17.45.168]) (envelope-sender ) by mail28.sea5.speakeasy.net (qmail-ldap-1.03) with SMTP for ; 28 Apr 2005 06:40:13 -0000 Received: from hydrogen.funkthat.com (ezklyv@localhost.funkthat.com [127.0.0.1])j3S6eCmo042136; Wed, 27 Apr 2005 23:40:12 -0700 (PDT) (envelope-from jmg@hydrogen.funkthat.com) Received: (from jmg@localhost) by hydrogen.funkthat.com (8.12.10/8.12.10/Submit) id j3S6eBIW042135; Wed, 27 Apr 2005 23:40:11 -0700 (PDT) Date: Wed, 27 Apr 2005 23:40:11 -0700 From: John-Mark Gurney To: Dan Nelson Message-ID: <20050428064011.GO2670@funkthat.com> Mail-Followup-To: Dan Nelson , stable@freebsd.org References: <20050423172802.GB67026@dan.emsphone.com> <20050423220521.GL2670@funkthat.com> <20050424035228.GA53806@dan.emsphone.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050424035228.GA53806@dan.emsphone.com> User-Agent: Mutt/1.4.1i X-Operating-System: FreeBSD 4.2-RELEASE i386 X-PGP-Fingerprint: B7 EC EF F8 AE ED A7 31 96 7A 22 B3 D8 56 36 F4 X-Files: The truth is out there X-URL: http://resnet.uoregon.edu/~gurney_j/ X-Resume: http://resnet.uoregon.edu/~gurney_j/resume.html cc: stable@freebsd.org Subject: Re: panic: mutex tty owned at ../../../kern/kern_event.c:1487 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: John-Mark Gurney List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 28 Apr 2005 06:40:14 -0000 Dan Nelson wrote this message on Sat, Apr 23, 2005 at 22:52 -0500: > In the last episode (Apr 23), John-Mark Gurney said: > > Dan Nelson wrote this message on Sat, Apr 23, 2005 at 12:28 -0500: > > > Got the following on a 2004-04-21 -stable kernel: > > > > > > panic messages: > > > --- > > > panic: mutex tty owned at ../../../kern/kern_event.c:1487 > > > cpuid = 0 > > > > I can whip up a patch if you want to try it (and can easily reproduce)... > > I tried repeating the panic (hitting ^C in an app partway through its > startup routine), but it's not cooperating, unfortunately. it's a very tight race.. basicly a second character has to come in between the time the first one happens, and before the test for the PENDIN flag happens... most likely to occure over an ssh pty that has a program using kqueue.. -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."