On Sun, Apr 26, 2015 at 10:07:19AM +0200, Stefan Sperling wrote: > On Sun, Apr 26, 2015 at 09:36:06AM +0200, Remi Locherer wrote: > > Since a couple of month every now and then I'm getting a > > "urtwn0: device timeout". Usually I deal with it by unlugging the > > urtwn device and plug it in again, then run "sh /etc/netstart urtwn0". > > Is ifconfig down/up (or just 'sh /etc/netstart urtwn0') not enough?
No, it's not enough. After the first timeout message on the console I executed "sh /etc/netstart urtwn0". The result was: Console log for mistral.relo.ch urtwn0: device timeout usb_transfer_complete: actlen > len 4294951684 > 4 usb_transfer_complete: actlen > len 4294951044 > 4 usb_transfer_complete: actlen > len 4294951300 > 4 usb_transfer_complete: actlen > len 4294951308 > 4 urtwn0: device timeout usb_transfer_complete: actlen > len 4294951300 > 4 urtwn0: device timeout usb_transfer_complete: actlen > len 4294951308 > 4 urtwn0: device timeout usb_transfer_complete: actlen > len 4294951948 > 4 usb_transfer_complete: actlen > len 4294951684 > 4 urtwn0: device timeout usb_transfer_complete: actlen > len 4294951304 > 2 urtwn0: device timeout usb_transfer_complete: actlen > len 4294951300 > 4 urtwn0: device timeout usb_transfer_complete: actlen > len 4294951682 > 2 usb_transfer_complete: actlen > len 4294951300 > 4 urtwn0: device timeout usb_transfer_complete: actlen > len 4294951300 > 4 usb_transfer_complete: actlen > len 4294951172 > 4 urtwn0: device timeout My /etc/hostname.urtwn0: nwid tsunami wpakey XXXXXXX dhcp inet6 autoconf !pkill -9 -lf wifinwid !/etc/wifinwid \$if & The script is the one from here: http://undeadly.org/cgi?action=article&sid=20130208141628 > That is essentially what the driver should be doing in this situation. > However, USB wifi drivers which need to load firmware currently don't > reset properly when transmit times out -- they simply do nothing instead > of resetting the interface. > > > > Sometimes the systems crashes when I unplug the urtwn device. > > > > Photos from ddb after such a crash: > > > > https://relo.ch/crash_on_urtwn_removal-trace_part1.jpg > > https://relo.ch/crash_on_urtwn_removal-trace_part2.jpg > > https://relo.ch/crash_on_urtwn_removal-ps_part1.jpg > > https://relo.ch/crash_on_urtwn_removal-ps_part2.jpg > > https://relo.ch/crash_on_urtwn_removal-ps_part3.jpg > > Can you please recompile your kernel with > makeoptions DEBUG="-g" > in the config when reproducing crashes? That's slightly more convenient > for us to debug since ddb output will contain line numbers. I'll do that and report back. > > Something is going wrong in the IPv6 code. This problem is not specific > to urtwn(4). The relevant part of the trace is: > > Stopped at find_pfxlist_reachable_router+0x15: movq 0x10(%eax),%rdi > > find_pfxlist_reachable_router() > pfxlist_onlink_check() > prelist_remove() > nd6_purge() > in6_ifdetach() > if_detach() > urtwn_detach() > config_detach() > usbd_detach() > uhub_explore() > uhub_explore() > usb_explore() > usb_task_thread()
