Hi, Frank. (2014/05/13 4:56), Frank Kardel wrote: > Hi, > > I have two observations on 6.99.44 (amd64/evbarm) where a wm-interface > send-queue is filled to the max. sendto()-calls terminate with ENOBUFS. > > net.interfaces.wm3.sndq.len = 256 > net.interfaces.wm3.sndq.maxlen = 256 > net.interfaces.wm3.sndq.drops = 20007 > > the interface status is: > wm3: flags=8a43<UP,BROADCAST,RUNNING,ALLMULTI,SIMPLEX,MULTICAST> mtu 1500 > capabilities=7ff80<TSO4,IP4CSUM_Rx,IP4CSUM_Tx,TCP4CSUM_Rx> > capabilities=7ff80<TCP4CSUM_Tx,UDP4CSUM_Rx,UDP4CSUM_Tx,TCP6CSUM_Rx> > capabilities=7ff80<TCP6CSUM_Tx,UDP6CSUM_Rx,UDP6CSUM_Tx,TSO6> > enabled=7ff80<TSO4,IP4CSUM_Rx,IP4CSUM_Tx,TCP4CSUM_Rx> > enabled=7ff80<TCP4CSUM_Tx,UDP4CSUM_Rx,UDP4CSUM_Tx,TCP6CSUM_Rx> > enabled=7ff80<TCP6CSUM_Tx,UDP6CSUM_Rx,UDP6CSUM_Tx,TSO6> > ec_capabilities=7<VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU> > ec_enabled=0 > address: 00:00:xx:xx:xx:xx > media: Ethernet autoselect (1000baseT > full-duplex,flowcontrol,master,rxpause,txpause) > status: active > [addresses skipped] > > traceroute packets from outside look like the are anwsered, but ICMP ECHO is > not answered. > > The interface recovers with an ifconfig wmX down/up.
Could you show me the dmesg? > While I do not know how to provoke this on wm (just happens once a week). I > found the same phenomenon occurring on a Raspberry Pi when detaching the > cable. The same symptoms occur there and ifconfig usmsc0 down/up will recover. > > Is anybody else seeing this? No, I'm not. One of diagnostic way of wm(4) is WM_EVENT_COUNTERS option. Could you enable the option and check with vmstat -ev? > Best regards, > Frank -- ----------------------------------------------- SAITOH Masanobu (msai...@execsw.org msai...@netbsd.org)