We currently don't have APAR VM65785 or PTF UM34782 installed in our z/VM 6.3, because it looks like it's more z/OS and IP v6 related: - according to the brief description "VSwitch error x'E00A' for IPv6 Address In use on LAN" (taken from here: http://www.vm.ibm.com/virtualnetwork/mntlvl63.html - and also from the detailed description: http://www-01.ibm.com/support/docview.wss?uid=isg1VM65785
Anyway, if this APAR goes beyond the description we may consider to apply this. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1667828 Title: Network device on z/VM instance incorrectly reports line speed Status in Ubuntu on IBM z Systems: Incomplete Status in linux package in Ubuntu: Incomplete Bug description: Line speed is incorrectly reported on z/VM instances in /sys when compared to what is claimed to be supported and advertised. for example, ethtool shows supported and advertised speeds of 1000Mb/s but /sys is only indicating 10Mb/s. ubuntu@hwe0008:~$ ethtool enc600 Settings for enc600: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Supported pause frame use: No Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Advertised pause frame use: No Advertised auto-negotiation: Yes Speed: 10Mb/s Duplex: Full Port: Twisted Pair PHYAD: 0 Transceiver: internal Auto-negotiation: on MDI-X: Unknown Cannot get wake-on-lan settings: Operation not permitted Link detected: yes ubuntu@hwe0008:~$ cat /sys/class/net/enc600/speed 10 I'm presuming this issue lies somewhere in the qeth driver: P: /devices/qeth/0.0.0600/net/enc600 E: DEVPATH=/devices/qeth/0.0.0600/net/enc600 E: ID_NET_DRIVER=qeth_l2 E: ID_NET_LINK_FILE=/lib/systemd/network/99-default.link E: ID_NET_NAME=enc600 E: ID_NET_NAME_MAC=enx02280b000004 E: ID_NET_NAME_PATH=enc600 E: ID_PATH=ccwgroup-0.0.0600 E: ID_PATH_TAG=ccwgroup-0_0_0600 E: IFINDEX=2 E: INTERFACE=enc600 E: SUBSYSTEM=net E: SYSTEMD_ALIAS=/sys/subsystem/net/devices/enc600 /sys/subsystem/net/devices/enc600 E: TAGS=:systemd: E: USEC_INITIALIZED=3784115 This is not an issue on my LPAR that uses the same drivers (but also adds ctcm and zfcp, so maybe therein lies the difference in speed reporting?) In any case, if the speeds cannot be correctly reported, they shouldn't be reported at all. virtio handles this by setting speed to -1: ubuntu@s1lp9g003:~$ cat /sys/class/net/eth0/speed -1 ubuntu@s1lp9g003:~$ ethtool eth0 Settings for eth0: Supported ports: [ ] Supported link modes: Not reported Supported pause frame use: No Supports auto-negotiation: No Advertised link modes: Not reported Advertised pause frame use: No Advertised auto-negotiation: No Speed: Unknown! Duplex: Unknown! (255) Port: Other PHYAD: 0 Transceiver: internal Auto-negotiation: off Cannot get wake-on-lan settings: Operation not permitted Link detected: yes That last example is a 1Gb/s interface on a z/KVM instance. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.8.0-36-generic 4.8.0-36.36~16.04.1 ProcVersionSignature: Ubuntu 4.8.0-36.36~16.04.1-generic 4.8.11 Uname: Linux 4.8.0-36-generic s390x ApportVersion: 2.20.1-0ubuntu2.5 Architecture: s390x Date: Fri Feb 24 17:08:59 2017 ProcEnviron: TERM=screen PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=C SHELL=/bin/bash SourcePackage: linux-hwe UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1667828/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
