From owner-freebsd-current Thu May 2 8: 6: 5 2002 Delivered-To: freebsd-current@freebsd.org Received: from mail.wearix.com (lorien.wearix.com [193.197.4.2]) by hub.freebsd.org (Postfix) with ESMTP id 63B2037B427; Thu, 2 May 2002 08:05:53 -0700 (PDT) Received: from hry.muc.wearix.com (ad96e1d2b.dsl.de.colt.net [217.110.29.43]) by mail.wearix.com (Postfix on SuSE Linux 7.3 (i386)) with ESMTP id A1C523532; Thu, 2 May 2002 17:05:50 +0200 (CEST) Subject: Re: CD-Boot hangs on rootmounting MD (+DP1 crashes) From: Harald Schmalzbauer To: John Baldwin Cc: freebsd-current@FreeBSD.org In-Reply-To: References: Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Mailer: Evolution/1.0 (Preview Release) Date: 02 May 2002 18:06:14 +0300 Message-Id: <1020351976.4519.2.camel@hry.muc.wearix.com> Mime-Version: 1.0 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 Am Do , 2002-05-02 um 17.44 schrieb John Baldwin: > > On 02-May-2002 Harald Schmalzbauer wrote: > > Am Do , 2002-05-02 um 13.29 schrieb Harald Schmalzbauer: > > > > PXEbooting the -stable kernel.gz and mfsroot results in the same system > > hang (mounting root from ufs:/dev/md0c). > > > > DP1 crashes with the following: > > unknown: can't assign resources (port) > > unknown: can't assign resources (memory) > > psmcpnp0: irq resource info is missing; assuming irq 12 > > > > Fatal trap12: page fault while in kernel mode > > fault virtual address = 0x0 > > fault code = supervisor read, page not present > > instruction pointer = 0x8:0xc164cac1 > > stack pointer = 0x10:0xcb931d00 > > frame pointer = 0x10:0xcb931d1c > > 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 = 27 (irq10: sn0) > > trap number = 12 > > panic: page fault > > Can you stick ddb in this kernel adn get a traceback? It's a NULL > pointer dereference bug. > > Actually, for DP1, isn't ddb already in the kernel? Of course, but somebody needs to tell me what to do (I wrote the last line of code 12 years ago in Pascal, and I've never used gdb) I think I can remember that there is some debuging FAQ but I can't read it NOW (perhaps at the weekend) If it isn't too complicated and understanding the things I'm typing is not needed, just tell me what to do (outside the list?) -Harry > > -- > > John Baldwin <>< http://www.FreeBSD.org/~jhb/ > "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message