Public bug reported: Using Kernel 4.4.0-93-generic #116-Ubuntu SMP.
The issue has been marked as fixed with this kernel here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1705447 There are several LXD containers running on the machine. Several offloading features have been disabled on eth0 and the LXD bridge, but not on the interfaces of the LXD containers. Output of "ethtool": > ethtool -k lxdbr0 Features for lxdbr0: rx-checksumming: off [fixed] tx-checksumming: off tx-checksum-ipv4: off [fixed] tx-checksum-ip-generic: off tx-checksum-ipv6: off [fixed] tx-checksum-fcoe-crc: off [fixed] tx-checksum-sctp: off [fixed] scatter-gather: off tx-scatter-gather: off tx-scatter-gather-fraglist: off tcp-segmentation-offload: off tx-tcp-segmentation: off tx-tcp-ecn-segmentation: off tx-tcp6-segmentation: off udp-fragmentation-offload: off generic-segmentation-offload: off generic-receive-offload: off large-receive-offload: off [fixed] rx-vlan-offload: off [fixed] tx-vlan-offload: on ntuple-filters: off [fixed] receive-hashing: off [fixed] highdma: on rx-vlan-filter: off [fixed] vlan-challenged: off [fixed] tx-lockless: on [fixed] netns-local: on [fixed] tx-gso-robust: off [requested on] tx-fcoe-segmentation: off [requested on] tx-gre-segmentation: on tx-ipip-segmentation: on tx-sit-segmentation: on tx-udp_tnl-segmentation: on fcoe-mtu: off [fixed] tx-nocache-copy: off loopback: off [fixed] rx-fcs: off [fixed] rx-all: off [fixed] tx-vlan-stag-hw-insert: on rx-vlan-stag-hw-parse: off [fixed] rx-vlan-stag-filter: off [fixed] l2-fwd-offload: off [fixed] busy-poll: off [fixed] hw-tc-offload: off [fixed] > ethtool -k eth0 Features for eth0: rx-checksumming: off tx-checksumming: off tx-checksum-ipv4: off tx-checksum-ip-generic: off [fixed] tx-checksum-ipv6: off tx-checksum-fcoe-crc: on [fixed] tx-checksum-sctp: off scatter-gather: off tx-scatter-gather: off tx-scatter-gather-fraglist: off [fixed] tcp-segmentation-offload: off tx-tcp-segmentation: off tx-tcp-ecn-segmentation: off [fixed] tx-tcp6-segmentation: off udp-fragmentation-offload: off [fixed] generic-segmentation-offload: off generic-receive-offload: off large-receive-offload: off rx-vlan-offload: on tx-vlan-offload: on ntuple-filters: off receive-hashing: on highdma: on [fixed] rx-vlan-filter: on [fixed] vlan-challenged: off [fixed] tx-lockless: off [fixed] netns-local: off [fixed] tx-gso-robust: off [fixed] tx-fcoe-segmentation: on [fixed] tx-gre-segmentation: off [fixed] tx-ipip-segmentation: off [fixed] tx-sit-segmentation: off [fixed] tx-udp_tnl-segmentation: off [fixed] fcoe-mtu: off [fixed] tx-nocache-copy: off loopback: off [fixed] rx-fcs: off [fixed] rx-all: off tx-vlan-stag-hw-insert: off [fixed] rx-vlan-stag-hw-parse: off [fixed] rx-vlan-stag-filter: off [fixed] l2-fwd-offload: off busy-poll: on [fixed] hw-tc-offload: off ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-93-generic 4.4.0-93.116 ProcVersionSignature: Ubuntu 4.4.0-93.116-generic 4.4.79 Uname: Linux 4.4.0-93-generic x86_64 NonfreeKernelModules: zfs zunicode zcommon znvpair zavl AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Sep 16 22:29 seq crw-rw---- 1 root audio 116, 33 Sep 16 22:29 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.1-0ubuntu2.10 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Sat Sep 16 23:10:39 2017 HibernationDevice: RESUME=UUID=185e0b64-60b6-4296-a530-0bd8c988ec3f InstallationDate: Installed on 2016-01-12 (613 days ago) InstallationMedia: MachineType: Supermicro X10DRH PciMultimedia: ProcEnviron: TERM=screen SHELL=/bin/bash PATH=(custom, no user) LANG=en_GB.UTF-8 ProcFB: 0 astdrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-93-generic root=/dev/md1 ro rootdelay=10 net.ifnames=0 RelatedPackageVersions: linux-restricted-modules-4.4.0-93-generic N/A linux-backports-modules-4.4.0-93-generic N/A linux-firmware 1.157.12 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/17/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 2.0 dmi.board.asset.tag: Default string dmi.board.name: X10DRH-iT dmi.board.vendor: Supermicro dmi.board.version: 1.10 dmi.chassis.asset.tag: Default string dmi.chassis.type: 23 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2.0:bd12/17/2015:svnSupermicro:pnX10DRH:pvr123456789:rvnSupermicro:rnX10DRH-iT:rvr1.10:cvnDefaultstring:ct23:cvrDefaultstring: dmi.product.name: X10DRH dmi.product.version: 123456789 dmi.sys.vendor: Supermicro ** Affects: linux (Ubuntu) Importance: Undecided Status: Confirmed ** Tags: amd64 apport-bug lxd xenial ** Attachment removed: "WifiSyslog.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1717750/+attachment/4951531/+files/WifiSyslog.txt ** Attachment removed: "Lsusb.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1717750/+attachment/4951525/+files/Lsusb.txt ** Attachment removed: "IwConfig.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1717750/+attachment/4951522/+files/IwConfig.txt ** Attachment removed: "CRDA.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1717750/+attachment/4951519/+files/CRDA.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1717750 Title: Kernel warning "skb_warn_bad_offload" every second To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1717750/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
