From owner-freebsd-bugs@FreeBSD.ORG Wed Jul 13 09:30:14 2005 Return-Path: X-Original-To: freebsd-bugs@hub.freebsd.org Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 46F7816A41C for ; Wed, 13 Jul 2005 09:30:14 +0000 (GMT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id C1B0F43D53 for ; Wed, 13 Jul 2005 09:30:13 +0000 (GMT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.13.3/8.13.3) with ESMTP id j6D9UDJ4028987 for ; Wed, 13 Jul 2005 09:30:13 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.13.3/8.13.1/Submit) id j6D9UDUA028984; Wed, 13 Jul 2005 09:30:13 GMT (envelope-from gnats) Resent-Date: Wed, 13 Jul 2005 09:30:13 GMT Resent-Message-Id: <200507130930.j6D9UDUA028984@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Marc Olzheim Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id BCAD716A41C for ; Wed, 13 Jul 2005 09:26:14 +0000 (GMT) (envelope-from marcolz@synth.ilse.net) Received: from synth.ilse.net (pip0-7.ilse.nl [62.69.162.177]) by mx1.FreeBSD.org (Postfix) with ESMTP id 45F1843D48 for ; Wed, 13 Jul 2005 09:26:13 +0000 (GMT) (envelope-from marcolz@synth.ilse.net) Received: from synth.ilse.net (localhost.ilse.nl [127.0.0.1]) by synth.ilse.net (8.13.3/8.13.1) with ESMTP id j6D9QC4w001063 for ; Wed, 13 Jul 2005 11:26:12 +0200 (CEST) (envelope-from marcolz@synth.ilse.net) Received: (from marcolz@localhost) by synth.ilse.net (8.13.3/8.13.1/Submit) id j6D9QB6T001062; Wed, 13 Jul 2005 11:26:11 +0200 (CEST) (envelope-from marcolz) Message-Id: <200507130926.j6D9QB6T001062@synth.ilse.net> Date: Wed, 13 Jul 2005 11:26:11 +0200 (CEST) From: Marc Olzheim To: FreeBSD-gnats-submit@FreeBSD.org X-Send-Pr-Version: 3.113 Cc: Subject: kern/83375: Fatal trap 12 cloning a pty X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Marc Olzheim List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 13 Jul 2005 09:30:14 -0000 >Number: 83375 >Category: kern >Synopsis: Fatal trap 12 cloning a pty >Confidential: no >Severity: critical >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Jul 13 09:30:13 GMT 2005 >Closed-Date: >Last-Modified: >Originator: Marc Olzheim >Release: FreeBSD 5.4-STABLE i386 and 6.0-CURRENT i386 >Organization: ilse media >Environment: System: FreeBSD synth.ilse.net 5.4-STABLE FreeBSD 5.4-STABLE #2: Fri Jul 1 17:08:52 CEST 2005 root@rave.ilse.net:/usr/obj/usr/src/sys/SE3INVAR i386 and FreeBSD office-install1.ilse.net 6.0-CURRENT FreeBSD 6.0-CURRENT #27: Mon Jul 11 13:03:37 CEST 2005 root@office-install1.ilse.net:/usr/obj/usr/src/sys/CRASH i386 Dual Xeon machine, RELENG_5 SMP kernel with INVARIANTS enabled to avert this crash for some time. and Dual Celeron 6.0-CURRENT SMP with practically GENERIC kernel. Haven't found a non-SMP machine to test on yet. >Description: Opening a new tty by for instance screen often goes horribly wrong. On RELENG_5, it crashes in ptsopen(), on (6-)CURRENT, it crashes in the devfs cloning and cleanup routines (each time a different location). >How-To-Repeat: Run this: crashpts.sh: -----8<----------8<----------8<----------8<----- #!/bin/sh count=0 while true do screen -d -m -c "${PWD}/.screenrc.crashpts" & count=$(($count+1)) if [ $(($count%30)) = 0 ] then killall screen sleep 2 killall -9 screen fi done -----8<----------8<----------8<----------8<----- screenrc.crashpts: -----8<----------8<----------8<----------8<----- screen screen screen screen screen screen screen screen screen screen -----8<----------8<----------8<----------8<----- >Fix: >Release-Note: >Audit-Trail: >Unformatted: