Messages in this thread | | | From | Joao Correia <> | Date | Wed, 29 May 2013 20:53:16 +0100 | Subject | Re: Network issue on 3.10 rcs, bisected |
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On Wed, May 29, 2013 at 7:59 PM, Pravin Shelar <pshelar@nicira.com> wrote: > > On Wed, May 29, 2013 at 4:37 AM, Joao Correia > <joaomiguelcorreia@gmail.com> wrote: > > Hello list > > > > While trying the rc's for 3.10, i've stumbled upon a problem where > > networking does not work at all. Iptables will show packet counts going up, > > but nothing actually reaches the programs. > > > > I'm running fedora under hyper-v 3 (a windows 2012 host). Only tested ipv4 > > traffic, and everything times out (ping, telnet to open ports) on both > > directions. The networking devices come up apparently ok - has static ip > > set, and dmesg shows no errors (although i don't have many debugging options > > enabled). > > > > I bisected this, and git blames commit > > ec5f061564238892005257c83565a0b58ec79295 (net: ill link between CSUM and SG > > features.). I can't revert it cleanly on current rc's. > > > Can you also send network features set on the device? > ethtool -k <dev>
As requested: Features for eth0: rx-checksumming: off [fixed] tx-checksumming: off tx-checksum-ipv4: off [fixed] tx-checksum-ip-generic: off [fixed] tx-checksum-ipv6: off [fixed] tx-checksum-fcoe-crc: off [fixed] tx-checksum-sctp: off [fixed] scatter-gather: on tx-scatter-gather: on tx-scatter-gather-fraglist: off [fixed] tcp-segmentation-offload: off tx-tcp-segmentation: off [fixed] tx-tcp-ecn-segmentation: off [fixed] tx-tcp6-segmentation: off [fixed] udp-fragmentation-offload: off [fixed] generic-segmentation-offload: on generic-receive-offload: on large-receive-offload: off [fixed] rx-vlan-offload: off tx-vlan-offload: on ntuple-filters: off [fixed] receive-hashing: off [fixed] highdma: off [fixed] tx-vlan-ctag-hw-insert: on [fixed] rx-vlan-ctag-hw-parse: off [fixed] rx-vlan-ctag-filter: off [fixed] tx-vlan-stag-hw-insert: off [fixed] rx-vlan-stag-hw-parse: off [fixed] rx-vlan-stag-filter: off [fixed] vlan-challenged: off [fixed] tx-lockless: off [fixed] netns-local: off [fixed] tx-gso-robust: off [fixed] tx-fcoe-segmentation: off [fixed] tx-gre-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 [fixed]
The output is similar on a working (3.9) and a bad (3.10) kernel. diff-ing both outputs shows: tx-vlan-stag-hw-insert: off [fixed] rx-vlan-stag-hw-parse: off [fixed] rx-vlan-stag-filter: off [fixed] as last on the broken kernels.
Thank you for your time, Joao Correia CIUBI Universidade da Beira Interior Portugal
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