Date: Fri, 22 Feb 2008 10:49:54 GMT From: Oliver Herold <oliver@akephalos.de> To: freebsd-gnats-submit@FreeBSD.org Subject: i386/120966: kernel panic with if_rum and WPA encryption Message-ID: <200802221049.m1MAns9Z028387@www.freebsd.org> Resent-Message-ID: <200802221100.m1MB05EW059734@freefall.freebsd.org>
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>Number: 120966
>Category: i386
>Synopsis: kernel panic with if_rum and WPA encryption
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-i386
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Feb 22 11:00:05 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator: Oliver Herold
>Release: FreeBSD 7, RELENG_7
>Organization:
>Environment:
FreeBSD asgard.home 7.0-PRERELEASE FreeBSD 7.0-PRERELEASE #1: Thu Feb 21 23:38:31 CET 2008 acheron@asgard.home:/usr/obj/usr/src/sys/ASGARD i386
>Description:
I've tested two Wifi usb sticks (manufacturer Hama and Edimax). Both of them are from the same OEM manufacturer.
rum0: <Ralink 802.11 bg WLAN, class 0/0, rev 2.00/0.01, addr 2> on uhub1
rum0: MAC/BBP RT2573 (rev 0x2573a), RF RT2528
rum0: Ethernet address: 00:0e:2e:b2:86:36
rum0: if_start running deferred for Giant
I can use it without any problems while using WEP encryption or without any encryption, but this is not a long-term option. So after bringing if_rum up with WPA it takes just about some (5-10 usually) minutes to render a kernel panic.
Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address = 0x12
fault code = supervisor read, page not present
instruction pointer = 0x20:0xc06d1570
stack pointer = 0x28:0xef0fac04
frame pointer = 0x28:0xef0fac20
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 (irq22: ehci0+)
trap number = 12
panic: page fault
cpuid = 1
Uptime: 11m8s
Physical memory: 3051 MB
>How-To-Repeat:
Just use if_rum with WPA encryption, this will lead to a kernel panic after some minutes.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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