From owner-freebsd-current Sun Jul 14 10:49:53 2002 Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4610537B400 for ; Sun, 14 Jul 2002 10:49:51 -0700 (PDT) Received: from mx3.datanet.hu (mx3.datanet.hu [194.149.13.160]) by mx1.FreeBSD.org (Postfix) with ESMTP id B722643E58 for ; Sun, 14 Jul 2002 10:49:50 -0700 (PDT) (envelope-from sziszi@bsd.hu) Received: from fonix.adamsfamily.xx (nilus-1830.adsl.datanet.hu [195.56.95.52]) by mx3.datanet.hu (DataNet) with ESMTP id 992F51EA3D0 for ; Sun, 14 Jul 2002 19:49:48 +0200 (CEST) Received: from fonix.adamsfamily.xx (localhost [127.0.0.1]) by fonix.adamsfamily.xx (8.12.5/8.12.5) with ESMTP id g6EHnwHS001356 for ; Sun, 14 Jul 2002 19:49:58 +0200 (CEST) (envelope-from sziszi@bsd.hu) Received: (from cc@localhost) by fonix.adamsfamily.xx (8.12.5/8.12.5/Submit) id g6EHnvVG001355 for freebsd-current@freebsd.org; Sun, 14 Jul 2002 19:49:58 +0200 (CEST) X-Authentication-Warning: fonix.adamsfamily.xx: cc set sender to sziszi@bsd.hu using -f Date: Sun, 14 Jul 2002 19:49:57 +0200 From: Szilveszter Adam To: freebsd-current@freebsd.org Subject: Interesting panic very early in the boot Message-ID: <20020714174957.GA1244@fonix.adamsfamily.xx> Mail-Followup-To: Szilveszter Adam , freebsd-current@freebsd.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.1i 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 Hello everybody, I have recently finished to upgrade my system to today morning's -CURRENT, with sources just *before* the commit of rev 1.154 to src/sys/kern/kern_fork.c by Julian. I have an UP IA32 machine, I am not using any additional kernel modules, and now, upon rebooting with the new kernel, as soon as I allow to continue from the loader prompt, the kernel greets me with this: (No serial console, transcribed by hand, please excuse any typos) Fatal trap 12: page fault within kernel mode fault virtual address = 0xbff004c0 fault code = supervisor read, protection violation instruction pointer = 0x8:0xc035c348 stack pointer = 0x10:0xc0532c08 frame pointer = 0x10:0xc0532c10 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL=0 current process = 0 () kernel: type 12 trap, code=0 Stopped at 0xc035c348: cmpl $0,0xbfc00000(%eax) Unfortunately, there is preciously little I could extract from ddb after this. ddb> ps pid proc addr uid ppid pgrp flag stat wmesg wchan cmd 0 c03f00c0 c0530000 0 0 0 000000 New ddb> tr (null)(c0418920,c0800000,537000,c0532d48,c03595bd) at 0xc035c348 (null)(537000,0,c0532c9c,c0532ce8,10) at 0xc035c290 (null)(537000,c0352524,f,0,8) at 0xc03595bd (null)(537000) at 0xc0359fb9 (null)() at 0xc0130c7d An attempt to "show locks" resulted in: witness_list: witness_cold Fatal trap 3 breakpoint instruction fault while in kernel mode An attempt to "show witness" resulted in: witness_display: witness_cold Uptime 1s and a complete lockup, only a power-cycle helped. No dump was taken. Does this ring a bell with anyone? I know that the trace may not help much... I will be just too glad to offer any information or testing that may be needed. -- Regards: Szilveszter ADAM Szombathely Hungary To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message