From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-ID: <4C7CA94A.7020103@bb.banban.jp> Date: Tue, 31 Aug 2010 16:03:38 +0900 From: Kazuki Shimada MIME-Version: 1.0 References: <4C6437BF.9080909@web.de> <201008261028.35755.sven.eckelmann@gmx.de> <4C7720F1.5030604@bb.banban.jp> <201008271159.28345.sven.eckelmann@gmx.de> In-Reply-To: <201008271159.28345.sven.eckelmann@gmx.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [B.A.T.M.A.N.] problem openwrt-trunk + ath5k + batman-adv-devel in my case Reply-To: The list for a Better Approach To Mobile Ad-hoc Networking List-Id: The list for a Better Approach To Mobile Ad-hoc Networking List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: The list for a Better Approach To Mobile Ad-hoc Networking Hi, Sven. Thank you for your patch and sorry to be late to reply. I updated the revision to r1780. The problem is gone. After network restart, wlan interfaces under bat0 are still deactivated. But it's not big problem. "/etc/init.d/batman-adv restart" makes them activated. Thanks a lot, Kazuki Shimada P.S. When activating network interfaces under bat0, What about forcing their mtu value to 1527? root@OpenWrt:/# /etc/init.d/network restart ifconfig: SIOCSIFADDR: No such device root@OpenWrt:/# iwconfig lo no wireless extensions. eth0 no wireless extensions. eth1 no wireless extensions. br-lan no wireless extensions. wlan0 IEEE 802.11abg ESSID:"mesh1" Mode:Ad-Hoc Frequency:2.412 GHz Cell: 5E:8D:F2:44:E6:C4 Tx-Power=20 dBm RTS thr:off Fragment thr:off Encryption key:off Power Management:off wlan1 IEEE 802.11abg ESSID:"mesh2" Mode:Ad-Hoc Frequency:2.437 GHz Cell: 7A:69:F0:4A:67:1D Tx-Power=27 dBm RTS thr:off Fragment thr:off Encryption key:off Power Management:off root@OpenWrt:/# ifconfig br-lan Link encap:Ethernet HWaddr 00:D0:12:03:44:91 inet addr:192.168.2.1 Bcast:192.168.2.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:32 errors:0 dropped:0 overruns:0 frame:0 TX packets:16 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:1472 (1.4 KiB) TX bytes:1649 (1.6 KiB) eth0 Link encap:Ethernet HWaddr 00:D0:12:03:44:91 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:117099 errors:0 dropped:0 overruns:0 frame:0 TX packets:211663 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:21594274 (20.5 MiB) TX bytes:308962021 (294.6 MiB) eth1 Link encap:Ethernet HWaddr 00:D0:12:13:44:91 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:4 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:200 (200.0 B) TX bytes:0 (0.0 B) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) wlan0 Link encap:Ethernet HWaddr 00:0B:6B:2D:F4:91 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:9 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:504 (504.0 B) TX bytes:0 (0.0 B) wlan1 Link encap:Ethernet HWaddr 00:0B:6B:2C:15:E3 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:15 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:696 (696.0 B) TX bytes:0 (0.0 B) root@OpenWrt:/# ifconfig wlan0 mtu 1527 root@OpenWrt:/# ifconfig wlan1 mtu 1527 root@OpenWrt:/# batctl if root@OpenWrt:/# batctl o Error - the folder '/sys/kernel/debug//batman_adv/bat0/' was not found within the sys filesystem Please make sure that the batman-adv kernel module is loaded root@OpenWrt:/# lsmod |grep batman batman_adv 64982 0 root@OpenWrt:/# /etc/init.d/batman-adv restart root@OpenWrt:/# batctl if wlan0: active wlan1: active root@OpenWrt:/# (2010/08/27 18:59), Sven Eckelmann wrote: > Kazuki Shimada wrote: > [...] >> "exit softif_destroy\n" is not printed out. >> unregister_netdev? > Thanks, perfect work. This is a new bug which was added in the multiple mesh > patchset. The problem is that the rtnl lock is taken and we still use > unregister_netdev when we process an event using hard_if_event. > > I have to check other code paths to ensure that I don't destroy other things, > but a workaround for you would be to use unregister_netdevice instead of > unregister_netdev in that situation. (Just check v0.2.1-30-g992bfd1 for more > information on that subject). > > The problem is that softif_destroy is also called when we unloading the module > - which means that it assumes that the rtnl lock is taken (which it is not > when you don't use unregister_netdev there). So I will work on a complete fix > and Cc it to you. > > Thanks, > Sven