ng_ubt(?) related kernel panic on 6.2-PRE

[Ronald Klop]

I can't help you, but you might also send this to the freebsd-bluetooth  
mailinglist.

Ronald.

On Wed, 10 Jan 2007 22:34:27 +0100, pluknet <pluknet at gmail.com> wrote:

> hi all.
>
> i got a panic when attached and then detached the ubt0 device just
> after a few seconds.
> Actually, it is a built-in bluetooth device in my laptop, operated with
> the Fn key.
>
> The module was loaded via
> ng_ubt_load="YES"
> in loader.conf
>
> FreeBSD notebook.h3 6.2-PRERELEASE FreeBSD 6.2-PRERELEASE #13: Wed Jan
>  3 16:04:04 MSK 2007
> root at notebook.h3:/usr/src/sys/i386/compile/MYKERNEL  i386
>
> part of dmesg:
> ubt0: vendor 0x413c product 0x8000, rev 2.00/12.66, addr 2
> ubt0: vendor 0x413c product 0x8000, rev 2.00/12.66, addr 2
> ubt0: Interface 0 endpoints: interrupt=0x81, bulk-in=0x82, bulk-out=0x2
> ubt0: Interface 1 (alt.config 5) endpoints: isoc-in=0x83,
> isoc-out=0x3; wMaxPacketSize=49; nframes=6, buffer size=294
> ...
> Jan 10 22:29:44 notebook savecore: reboot after panic: page fault
>
> kgdb bt shows:
> #0  0xc04f663c in doadump ()
> #1  0xc04f6bbd in boot ()
> #2  0xc04f7193 in panic ()
> #3  0xc0672044 in trap_fatal ()
> #4  0xc06722fb in trap_pfault ()
> #5  0xc06726f0 in trap ()
> #6  0xc065f62a in calltrap ()
> #7  0xc049ccc9 in uhci_device_bulk_start ()
> #8  0xc04a72e6 in usb_transfer_complete ()
> #9  0xc049c6ac in uhci_idone ()
> #10 0xc049c879 in uhci_softintr ()
> #11 0xc049c500 in uhci_intr1 ()
> #12 0xc04dee8e in ithread_loop ()
> #13 0xc04dda2d in fork_exit ()
> #14 0xc065f68c in fork_trampoline ()
>
> Since ng_ubt is a BT-USB interface, there is nothing extraordinary
> in the above, i think. Though, maybe it is related to usb, not ubt.
>
> This is the first time i got this panic. Usually (i.e. until this
> time) there was no panic related to ubt0. So, probably it is not
> reproduceable :(
> Unfortunately, the kernel didn't have any debug options when it
> occurred.
>
> thanks.
> pluknet



-- 
  Ronald Klop
  Amsterdam, The Netherlands