Hi Tony, Thanks for your findings. I know this problem since last year. The reason is that 6lowpan device has 802154 type, but have no mlme implementation. So get_phy tries to execute undefined methods. The patch is ready, will send it to mainline this week with other fixes.
Alex Отправлено с iPhone 23.04.2012, в 23:51, Tony Cheneau <tony.cheneau+zigbee...@amnesiak.org> написал(а): > Hello, > > I noted that iz list never returns the proper result (or any result) > when 6lowpan is loaded and a lowpan0 interface exists. This is true for > the Linus' git tree (at least in > rev:0034102808e0dbbf3a2394b82b1bb40b5778de9e, but I haven't seen any > changes in the more recent revisions). > > Here are the steps to reproduce the "bug": >> modprobe fakehard >> modprobe 6lowpan >> iz add wpan-phy0 >> ip link set hardwpan0 address ca:fe:ca:fe:ca:fe:ca:fe >> ifconfig hardwpan0 up >> izcoordinator -i hardwpan0 -s 1 -p 777 -c 11 -l lease & >> ip link add link hardwpan0 name lowpan0 type lowpan >> ip link set lowpan0 address de:ad:be:ef:ca:fe:ca:fe >> ip link set lowpan0 up >> iz list > > I hooked a debugger to the kernel. The problem lies in the > ieee802154_dump_iface() function, at the line 262: >> phy = ieee802154_mlme_ops(dev)->get_phy(dev); > > Here, function ieee802154_mlme_ops(dev) always returns NULL, because > the 6lowpan module does not register dev->ml_priv (and set > ARPHRD_IEEE802154 as dev->type value). > > Maybe this is not the proper list to report the bug (given that the > 6lowpan code is now part of the mainstream kernel). In that case, please > redirect me to the proper mailing list. > > Please let me know if you need more details. > > Regards, > Tony > > > ------------------------------------------------------------------------------ > For Developers, A Lot Can Happen In A Second. > Boundary is the first to Know...and Tell You. > Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! > http://p.sf.net/sfu/Boundary-d2dvs2 > _______________________________________________ > Linux-zigbee-devel mailing list > Linux-zigbee-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/linux-zigbee-devel ------------------------------------------------------------------------------ For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 _______________________________________________ Linux-zigbee-devel mailing list Linux-zigbee-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-zigbee-devel
