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

Thanks for your reply,
I downloaded the if_rum.c rev 1.15 and recompiled the kernel (BETA-3, 2
dec). I still get a page fault:

(kgdb) bt
#0  doadump () at pcpu.h:195
#1  0xc0752e37 in boot (howto=260)
at /usr/src/sys/kern/kern_shutdown.c:409
#2  0xc07530f9 in panic (fmt=) at /usr/src/sys/kern/kern_shutdown.c:563
#3  0xc0a1852c in trap_fatal (frame=0xe296cb78, eva=4)
    at /usr/src/sys/i386/i386/trap.c:872
#4  0xc0a18790 in trap_pfault (frame=0xe296cb78, usermode=0, eva=4)
    at /usr/src/sys/i386/i386/trap.c:785
#5  0xc0a190e2 in trap (frame=0xe296cb78)
at /usr/src/sys/i386/i386/trap.c:463
#6  0xc09ffafb in calltrap () at /usr/src/sys/i386/i386/exception.s:139
#7  0xc0811f72 in ieee80211_free_node (ni=0x0)
    at /usr/src/sys/net80211/ieee80211_node.c:1289
#8  0xc06b984d in rum_txeof (xfer=0xc43d1200, priv=0xc40a7498, 
    status=USBD_NORMAL_COMPLETION) at /usr/src/sys/dev/usb/if_rum.c:861
#9  0xc06d2fd5 in usb_transfer_complete (xfer=0xc43d1200)
    at /usr/src/sys/dev/usb/usbdi.c:977
#10 0xc06a5ba1 in ehci_softintr (v=0xc3fe5800)
    at /usr/src/sys/dev/usb/ehci.c:884
#11 0xc06ceb82 in usb_schedsoftintr (bus=0xc3fe5800)
    at /usr/src/sys/dev/usb/usb.c:844
#12 0xc06a737e in ehci_intr1 (sc=0xc3fe5800)
    at /usr/src/sys/dev/usb/ehci.c:603
#13 0xc06a7db5 in ehci_intr (v=0xc3fe5800)
at /usr/src/sys/dev/usb/ehci.c:562
#14 0xc07366fb in ithread_loop (arg=0xc4057b00)
    at /usr/src/sys/kern/kern_intr.c:1036
#15 0xc0733639 in fork_exit (callout=0xc0736550 <ithread_loop>, 
    arg=0xc4057b00, frame=0xe296cd38)
at /usr/src/sys/kern/kern_fork.c:754
#16 0xc09ffb70 in fork_trampoline ()
at /usr/src/sys/i386/i386/exception.s:205

Thanks,
best regards.

Leonardo Midolo


> 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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