Date: Sat, 29 Dec 2007 11:50:02 GMT From: Manolis Kiagias <sonicy@otenet.gr> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/118897: Kernel Panic acquiring IP address from DHCP server on newly enabled netcard Message-ID: <200712291150.lBTBo2K7068688@freefall.freebsd.org>
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The following reply was made to PR kern/118897; it has been noted by GNATS. From: Manolis Kiagias <sonicy@otenet.gr> To: Kris Kennaway <kris@FreeBSD.org> 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
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