rum driver panic [ was: Re: USB wireless AP? ]

Ivan Voras ivoras at
Wed Apr 23 19:56:01 UTC 2008

John Nielsen wrote:
> On Wednesday 23 April 2008 11:57:28 am Ivan Voras wrote:
>> I've found a perfect match for my needs: D-Link DWL-G122, with the
>> "rum" driver. Not a single problem so far, everything works as
>> documented. Truly a plug and play experience.
>> I'm just curious about one more thing: I wish to set up a "b/g"
>> network, so both b and g devices can connect. Apparently this is set up
>> via the "mode" argument to ifconfig, which accepts "11g" and "11b" but
>> not the obvious "11bg". Any pointers on this?
> You can either omit the "mode" argument altogether and get both supported 
> by default, or just specify "11g", which will also support both. I 
> typically omit the mode unless I want to limit things to only 11b.

Thanks, I'll try that tomorrow. For now, it looks like my fun won't last 

Unread portion of the kernel message buffer:

Fatal trap 12: page fault while in kernel mode
fault virtual address   = 0x12
fault code              = supervisor read, page not present
instruction pointer     = 0x20:0xc053fd4a
stack pointer           = 0x28:0xcc218be8
frame pointer           = 0x28:0xcc218c00
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         = 25 (irq11: ohci0)
trap number             = 12
panic: page fault
Uptime: 38m49s
Physical memory: 241 MB
Dumping 36 MB: 21 5

#0  doadump () at pcpu.h:195
195     pcpu.h: No such file or directory.
         in pcpu.h
(kgdb) bt
#0  doadump () at pcpu.h:195
#1  0xc05d0f53 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:418
#2  0xc05d114f in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:572
#3  0xc07cf4fc in trap_fatal (frame=0xcc218ba8, eva=18) at 
#4  0xc07cf780 in trap_pfault (frame=0xcc218ba8, usermode=0, eva=18) at 
#5  0xc07d00d9 in trap (frame=0xcc218ba8) at 
#6  0xc07b926b in calltrap () at /usr/src/sys/i386/i386/exception.s:139
#7  0xc053fd4a in rum_txeof (xfer=0xc1fcb000, priv=0xc20b7498, 
status=USBD_NORMAL_COMPLETION) at /usr/src/sys/dev/usb/if_rum.c:843
#8  0xc0559745 in usb_transfer_complete (xfer=0xc1fcb000) at 
#9  0xc0542d79 in ohci_softintr (v=0xc1d37000) at 
#10 0xc05552e2 in usb_schedsoftintr (bus=0xc1d37000) at 
#11 0xc0544698 in ohci_intr1 (sc=0xc1d37000) at 
#12 0xc0544e61 in ohci_intr (p=0xc1d37000) at 
#13 0xc05b300b in ithread_loop (arg=0xc1d39220) at 
#14 0xc05afeb6 in fork_exit (callout=0xc05b2e60 <ithread_loop>, 
arg=0xc1d39220, frame=0xcc218d38) at /usr/src/sys/kern/kern_fork.c:783
#15 0xc07b92e0 in fork_trampoline () at 

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 250 bytes
Desc: OpenPGP digital signature
Url :

More information about the freebsd-questions mailing list