Date: Wed, 6 Jun 2007 11:10:21 GMT From: Richard Smith<rdls@satamatics.com> To: freebsd-gnats-submit@FreeBSD.org Subject: i386/113406: Page fault in XL0 device driver Message-ID: <200706061110.l56BAL91062870@www.freebsd.org> Resent-Message-ID: <200706061120.l56BK34w079340@freefall.freebsd.org>
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>Number: 113406 >Category: i386 >Synopsis: Page fault in XL0 device driver >Confidential: no >Severity: critical >Priority: low >Responsible: freebsd-i386 >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Jun 06 11:20:02 GMT 2007 >Closed-Date: >Last-Modified: >Originator: Richard Smith >Release: 6.2-RELEASE-p5 >Organization: Satamatics Ltd >Environment: FreeBSD controller.satamatics.net 6.2-RELEASE-p5 FreeBSD 6.2-RELEASE-p5 #0: Fri Jun 1 23:39:24 UTC 2007 rdls@:/usr/obj/usr/src/sys/GENERIC i386 >Description: Installed device causing problem: xl0: <3Com 3c900B-COMBO Etherlink XL> port 0xb800-0xb87f mem 0xefdfff80-0xefdfffff irq 10 at device 6.0 on pci2 xl0: selecting 10baseT transceiver, half duplex xl0: Ethernet address: 00:50:da:43:bc:b4 Command causing problem: ifconfig xl0 media 10base2/BNC Full details of panic copied from the screen: Fatal trap 12: page fault while in kernel mode fault virtual address = 0x24 fault code = supervisor read, page not present instruction pointer = 0x20:0xc0692dde stack pointer = 0x28:0xd0a04c54 frame pointer = 0x28:0xd0a04c68 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = resume, IOPL = 0 current process = 23 (irq10: rl0 xl0+) trap number = 12 panic: page fault Problem also appears in: FreeBSD 6.2-RELEASE Problem does NOT appear in: FreeBSD 5.4-RELEASE >How-To-Repeat: Install a COMBO NIC (one supporting 10base2/BNC and 10baseT/UTP) for the XL0 device driver and issue the following command: ifconfig xl0 inet 10.1.1.1 netmask 255.255.255.0 ifconfig xl0 media 10base2/BNC immediate panic >Fix: The only fix we currently have is to use an alternative OS version (e.g. 5.4-R) or an alternative combo card (e.g. we have combo cards using the ed0 device that do not present a problem). >Release-Note: >Audit-Trail: >Unformatted:
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