misc/182665: Kernel panic when creating second wlandev.

[Peter Ankerstål]

>Number:         182665
>Category:       misc
>Synopsis:       Kernel panic when creating second wlandev.
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Oct 05 08:40:00 UTC 2013
>Closed-Date:
>Last-Modified:
>Originator:     Peter Ankerstål
>Release:        FreeBSD 10.0-CURRENT
>Organization:
-
>Environment:
FreeBSD gw.pean.org 10.0-CURRENT FreeBSD 10.0-CURRENT #1: Fri Oct  4 09:19:35 CEST 2013     root at gw.pean.org:/usr/obj/usr/src/sys/SOEKRIS  i386
>Description:
Kernel crashed when I try to create a second wlan device. It happens both when I use a wlandev that is already assigned to another wlanX and when i use another wlandev.

Oct  5 10:23:29 gw kernel: Fatal trap 12: page fault while in kernel mode
Oct  5 10:23:29 gw snmpd[2966]: unknown regdomain (0x809c) 
Oct  5 10:23:29 gw kernel: Oct  5 10:23:29 gw snmpd[2966]: unknown regdomain (0x809c) 
Oct  5 10:23:29 gw snmpd[2966]: unknown regdomain (0x809c) 
Oct  5 10:23:30 gw kernel: wlan1: Ethernet address: b0:48:7a:d5:fe:a2
Oct  5 10:23:30 gw kernel: cpuid = 0; apic id = 00
Oct  5 10:23:30 gw kernel: fault virtual address        = 0x0
Oct  5 10:23:30 gw kernel: fault code           = supervisor read, page not present
Oct  5 10:23:30 gw kernel: instruction pointer  = 0x20:0xc0800110
Oct  5 10:23:30 gw kernel: stack pointer                = 0x28:0xe8d799e0
Oct  5 10:23:30 gw kernel: frame pointer                = 0x28:0xe8d799e8
Oct  5 10:23:30 gw kernel: code segment         = base 0x0, l
>How-To-Repeat:
# ifconfig wlan0 create wlandev ath0
# ifconfig wlan1 create wlandev ath0

OR

# ifconfig wlan0 create wlandev ath0
# ifconfig wlan1 create wlandev ath1
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: