bwn panic

[Garrett Cooper]

On Sat, Jun 26, 2010 at 2:12 PM, Ruslan Mahmatkhanov <cvs-src at yandex.ru> wrote:
> Hello!
>
> I'm using
>
> siba_bwn0 at pci0:16:0:0:  class=0x028000 card=0x1364103c chip=0x431114e4
> rev=0x01 hdr=0x00
>    vendor     = 'Broadcom Corporation'
>    device     = 'Broadcom Corporation Dell Wireless 1390 WLAN Mini-PCI Card
> (BCM4311)'
>    class      = network
>
> with bwn driver on recent stable. I'm using it with wpa_supplicant for WPA2
> encryption. It works well most of the time, but right now (it was first
> time) i get my laptop rebooted with following in messages:
>
> Jun 25 17:31:51 smeshariki2 wpa_supplicant[424]: CTRL-EVENT-SCAN-RESULTS
> Jun 25 17:36:53 smeshariki2 wpa_supplicant[424]: CTRL-EVENT-SCAN-RESULTS
> Jun 25 17:38:54 smeshariki2 kernel: bwn0: status of RF switch is changed to
> ON
> Jun 25 17:40:05 smeshariki2 kernel: bwn0: HW reset: PHY TX errors
> Jun 25 17:40:05 smeshariki2 kernel: bwn0: MAC suspend failed
> Jun 25 17:40:05 smeshariki2 kernel: bwn0: no INITVALS for rev 10
> Jun 25 17:40:05 smeshariki2 kernel: Sleeping thread (tid 100024, pid 0) owns
> a non-sleepable lock
> Jun 25 17:40:05 smeshariki2 kernel: panic: sleeping thread
> Jun 25 17:40:05 smeshariki2 kernel: cpuid = 0
> Jun 25 17:40:05 smeshariki2 kernel: Uptime: 7h29m29s
> Jun 25 17:40:05 smeshariki2 kernel: Cannot dump. Device not defined or
> unavailable.
> Jun 25 17:40:05 smeshariki2 kernel: Automatic reboot in 15 seconds - press a
> key on the console to abort
> Jun 25 17:40:05 smeshariki2 kernel: --> Press a key on the console to
> reboot,
> Jun 25 17:40:05 smeshariki2 kernel: --> or switch off the system now.
> Jun 25 17:40:05 smeshariki2 kernel: Rebooting...
>
> I know nothing but it looks like some locking issue.
> Can please anybody shed some light what's wrong? Thanks.

Hi Ruslan,
    Please take a look at
http://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug.html
if the issue is reproducible.
Thanks,
-Garrett