From owner-freebsd-bugs@FreeBSD.ORG Sat Dec 29 11:50:02 2007 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C2CCA16A420 for ; Sat, 29 Dec 2007 11:50:02 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id B6E4713C457 for ; Sat, 29 Dec 2007 11:50:02 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.14.2/8.14.2) with ESMTP id lBTBo2kR068689 for ; Sat, 29 Dec 2007 11:50:02 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.2/8.14.1/Submit) id lBTBo2K7068688; Sat, 29 Dec 2007 11:50:02 GMT (envelope-from gnats) Date: Sat, 29 Dec 2007 11:50:02 GMT Message-Id: <200712291150.lBTBo2K7068688@freefall.freebsd.org> To: freebsd-bugs@FreeBSD.org From: Manolis Kiagias Cc: Subject: Re: kern/118897: Kernel Panic acquiring IP address from DHCP server on newly enabled netcard X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Manolis Kiagias List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Dec 2007 11:50:02 -0000 The following reply was made to PR kern/118897; it has been noted by GNATS. From: Manolis Kiagias To: Kris Kennaway Cc: freebsd-gnats-submit@FreeBSD.org Subject: Re: kern/118897: Kernel Panic acquiring IP address from DHCP server on newly enabled netcard Date: Sat, 29 Dec 2007 13:31:04 +0200 Kris Kennaway wrote: > Manolis Kiagias wrote: >>> Number: 118897 >>> Category: kern >>> Synopsis: Kernel Panic acquiring IP address from DHCP server >>> on newly enabled netcard >>> Confidential: no >>> Severity: critical >>> Priority: medium >>> Responsible: freebsd-bugs >>> State: open >>> Quarter: Keywords: Date-Required: >>> Class: sw-bug >>> Submitter-Id: current-users >>> Arrival-Date: Thu Dec 20 18:10:02 UTC 2007 >>> Closed-Date: >>> Last-Modified: >>> Originator: Manolis Kiagias >>> Release: 6.3-RC1 >>> Organization: >>> Environment: >> FreeBSD pegasus.dyndns.org 6.3-RC1-p1 FreeBSD 6.3-RC1-p1 #2: Sun Dec >> 2 19:48:21 EET 2007 >> root@pegasus.dyndns.org:/usr/obj/usr/src/sys/PEGASUS i386 >> >>> Description: >> Machine has a broadcom network card shown as bfe0. At boot, the card >> is not enabled (commented out) in rc.conf Driver attaches normally. >> After editing rc.conf to enable the line: >> >> ifconfig_bfe0="DHCP" >> >> and running: >> >> /etc/rc.d/netif restart >> >> there is a kernel panic while getting an address from DHCP server (a >> linksys home router). >> >> panic: page fault >> fault virtual address = 0x104 >> fault code = supervisor read, page not present >> instruction pointer = 0x20:0xc052417d >> stack pointer = 0x28:0xe71ffbec >> frame pointer = 0x28:0xe71ffbf8 >> code segment = base 0x0 limit 0xfffff type 0x1b >> =DPL 0, pres 1, def32 1, gran 1 >> =resume, IOPL=0 >> =971 (ifconfig) >> =12 >>> How-To-Repeat: >> The symptom is repeatable every time. Use the procedure mentioned >> above. The symptom does not occur if you reboot after enabling the >> card in rc.conf. In this case the card is assigned an IP and >> subsequent runs of netif have no undesirable effects. >>> Fix: >> None that I know. Only workaround is to reboot after enabling the >> rc.conf entry. >> >>> Release-Note: >>> Audit-Trail: >>> Unformatted: >> _______________________________________________ >> freebsd-bugs@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-bugs >> To unsubscribe, send any mail to "freebsd-bugs-unsubscribe@freebsd.org" >> >> . >> > > Thanks for the report, but you need to do some additional work to > complete the submission. Please see: > > > http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug.html > > > and obtain a crashdump and backtrace. > > Kris > > Thanks Will do promptly and come back with the results. Manolis