Re: Panic 7.0 BETA-3 (page fault) using D-Link DWL-G122

Hello Leonardo,

I think your problem is a known issue and commited a fix to HEAD.  Can
you try to test the rum(4) HEAD driver?

http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/dev/usb/if_rum.c
(rev 1.15)

Regards,
Weongyo Jeong

On Sun, Dec 02, 2007 at 12:07:56PM +0100, Leonardo Midolo wrote:
> Hello everyone
> I'm tracking RELENG_7 (i386, SCHED_SMP, last build: today, 2 dec) on my
> laptop (core 2 duo) and I've recently bought an usb wireless adapter
> (D-Link DWL-G122 rev C1). 
> Everything works properly (i can connect to the access point using WPA
> and do normal network activities) but sometimes (I must say, randomly) I
> get a kernel panic. 
> 
> Here's the debug info, hope it helps:
> 
> 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 = 0x20:0xc06b976a
> stack pointer         = 0x28:0xe296cbe4
> frame pointer         = 0x28:0xe296cbfc
> 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 = 24 (irq23: uhci0 ehci0)
> trap number = 12
> panic: page fault
> cpuid = 1
> Uptime: 3m44s
> Physical memory: 1009 MB
> Dumping 107 MB: 92 76 60 44 28 12
> 
> Backtrace
> #0  doadump () at pcpu.h:195
> #1  0xc0752e07 in boot (howto=260)
> at /usr/src/sys/kern/kern_shutdown.c:409
> #2  0xc07530c9 in panic (fmt=) at /usr/src/sys/kern/kern_shutdown.c:563
> #3  0xc0a184fc in trap_fatal (frame=0xe296cba4, eva=18)
>     at /usr/src/sys/i386/i386/trap.c:872
> #4  0xc0a18760 in trap_pfault (frame=0xe296cba4, usermode=0, eva=18)
>     at /usr/src/sys/i386/i386/trap.c:785
> #5  0xc0a190b2 in trap (frame=0xe296cba4)
> at /usr/src/sys/i386/i386/trap.c:463
> #6  0xc09ffacb in calltrap () at /usr/src/sys/i386/i386/exception.s:139
> #7  0xc06b976a in rum_txeof (xfer=0xc4343800, priv=0xc40a7498, 
>     status=USBD_NORMAL_COMPLETION) at /usr/src/sys/dev/usb/if_rum.c:842
> #8  0xc06d2fa5 in usb_transfer_complete (xfer=0xc4343800)
>     at /usr/src/sys/dev/usb/usbdi.c:977
> #9  0xc06a5ba1 in ehci_softintr (v=0xc3fe5800)
>     at /usr/src/sys/dev/usb/ehci.c:884
> #10 0xc06ceb52 in usb_schedsoftintr (bus=0xc3fe5800)
>     at /usr/src/sys/dev/usb/usb.c:844
> #11 0xc06a737e in ehci_intr1 (sc=0xc3fe5800)
>     at /usr/src/sys/dev/usb/ehci.c:603
> #12 0xc06a7db5 in ehci_intr (v=0xc3fe5800)
> at /usr/src/sys/dev/usb/ehci.c:562
> #13 0xc07366cb in ithread_loop (arg=0xc4057b00)
>     at /usr/src/sys/kern/kern_intr.c:1036
> #14 0xc0733609 in fork_exit (callout=0xc0736520 <ithread_loop>, 
>     arg=0xc4057b00, frame=0xe296cd38)
> at /usr/src/sys/kern/kern_fork.c:754
> #15 0xc09ffb40 in fork_trampoline ()
> at /usr/src/sys/i386/i386/exception.s:205
> 
> Thanks,
> Leonardo
> 
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