Hi, On Sun, 5 Aug 2018 12:18:24 +0200 Dhananjay Balan <m...@dbalan.in> wrote:
> Hi, > > I have a problems with ethernet on my laptop (X230). pciconf(8) > identifies the device as Intel 82579LM Gigabit Network Connection > (Lewisville). > > 1. Resuming after a long suspend (~5hr), sometimes the > machine can't get a DHCP IP. > > 2. After suspend, the ethernet device starts reporting no carrier, > eventhough the cables are plugged in and if I plug it to a different > box, they would work > > I can reproduce both on 12.0-CURRENT #17 r336576. But not sure when > they started. > > I have seen this behaviour with 2 routeres running three firmwares at > the other end. > 1. Easybox (linux 2.x?) > 2. Edgerouter lite running stock fw (linux 2.x) and 12-CURRENT (~3 > months old) > > For Problem (1) DHCP lease: > ifconfig shows: > em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu > 1500 > options=81249b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,LRO,WOL_MAGIC,VLAN_HWFILTER> > ether xx:xx:xx:xx:xx:xx inet 0.0.0.0 netmask 0xff000000 broadcast > 255.255.255.255 media: Ethernet autoselect (1000baseT <full-duplex>) > status: active > nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> > > It still can't get an ip if I invoke service netif restart > > em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu > 1500 > options=81249b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,LRO,WOL_MAGIC,VLAN_HWFILTER> > ether xx:xx:xx:xx:xx:xx inet 0.0.0.0 netmask 0xff000000 broadcast > 255.255.255.255 media: Ethernet autoselect (1000baseT <full-duplex>) > status: active > nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> > > If I try running dhclient manually, > > [dhananjay:~] 1 % sudo dhclient em0 > dhclient already running, pid: 14305. > exiting. > [dhananjay:~] 1 % sudo kill 14305 > [dhananjay:~] % sudo dhclient em0 > DHCPDISCOVER on em0 to 255.255.255.255 port 67 interval 6 > DHCPDISCOVER on em0 to 255.255.255.255 port 67 interval 6 > DHCPDISCOVER on em0 to 255.255.255.255 port 67 interval 10 > DHCPDISCOVER on em0 to 255.255.255.255 port 67 interval 13 > DHCPDISCOVER on em0 to 255.255.255.255 port 67 interval 17 > DHCPDISCOVER on em0 to 255.255.255.255 port 67 interval 9 > No DHCPOFFERS received. > No working leases in persistent database - sleeping. > > For (2) For status no carrier > em0: flags=8c03<UP,BROADCAST,OACTIVE,SIMPLEX,MULTICAST> metric 0 mtu > 1500 > options=81249b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,LRO,WOL_MAGIC,VLAN_HWFILTER> > ether xx:xx:xx:xx:xx:xx media: Ethernet autoselect > status: no carrier > nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> > > and dmesg keeps repeating > em0: TX(0) desc avail = 1024, pidx = 0 > em0: TX(0) desc avail = 1024, pidx = 0 > em0: TX(0) desc avail = 1024, pidx = 0 > em0: TX(0) desc avail = 1024, pidx = 0 > > > The only solution I have found so far is to just reboot the laptop and > then everything starts working. FWIW the router led never blinks (no > data transfers during DHCPDISCOVER). I am not sure how to debug this. > when I ran into this problem, I delete the IP address 0.0.0.0, kill dhclient and start a new dhclient. As we used fixed IP addresses for em0, the problem comes up only on wlan. Erich _______________________________________________ freebsd-current@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
