From owner-freebsd-current Mon Jan 27 12:26:57 2003 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 02F1F37B401 for ; Mon, 27 Jan 2003 12:26:56 -0800 (PST) Received: from mail.speakeasy.net (mail12.speakeasy.net [216.254.0.212]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6F82F43F18 for ; Mon, 27 Jan 2003 12:26:55 -0800 (PST) (envelope-from jhb@FreeBSD.org) Received: (qmail 10317 invoked from network); 27 Jan 2003 20:27:01 -0000 Received: from unknown (HELO server.baldwin.cx) ([216.27.160.63]) (envelope-sender ) by mail12.speakeasy.net (qmail-ldap-1.03) with DES-CBC3-SHA encrypted SMTP for ; 27 Jan 2003 20:27:01 -0000 Received: from laptop.baldwin.cx (gw1.twc.weather.com [216.133.140.1]) by server.baldwin.cx (8.12.6/8.12.6) with ESMTP id h0RKQrUT058031; Mon, 27 Jan 2003 15:26:53 -0500 (EST) (envelope-from jhb@FreeBSD.org) Message-ID: X-Mailer: XFMail 1.5.2 on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: Date: Mon, 27 Jan 2003 15:26:58 -0500 (EST) From: John Baldwin To: Nate Lawson Subject: Re: panic in fork() on SMP 5.0-RELEASE Cc: current@FreeBSD.ORG, Morten Rodal 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 On 25-Jan-2003 Nate Lawson wrote: > On Sat, 25 Jan 2003, Morten Rodal wrote: >> The system is running 5.0-RELEASE with a pretty standard kernel (just >> removed all the drivers I don't use and added SMP support). I think >> the load of the system might have been high at the moment as I had >> just started >> >> cd /usr/ports && make -j8 clean > > The problem is uap is invalid in this frame: >#15 0xc01bd2f0 in fork (td=0xc5144000, uap=0xe3ac4d10) at > /usr/src/sys/kern/kern_fork.c:124 > > The question is, why? I suspect something to do with memory due to the > second two bytes being a valid kernel address. How about a dmesg? Eh? 0xefoo is a valid address, it's just not text, it's a stack address. Also, the last two bytes are '4d10' which would be the start of a user address. The 'c' is the low nibble in the 'ac' byte. -- 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