Re: end_request: I/O error

Ed Cashin <ed.cashin@xxxxxxx> · Tue, 16 Jun 2015 20:39:54 -0400



    Adi, do you think aoetools-36/aoesancheck is a good next step?

    
    On 06/16/2015 01:57 PM, Daofeng Li
      wrote:

    
        ok...I'm
          totally lost... :)
        

          $ ethtool -k em1
          Features for em1:
          rx-checksumming: on
          tx-checksumming: on
           tx-checksum-ipv4: on
           tx-checksum-ip-generic:
            off [fixed]
           tx-checksum-ipv6: on
           tx-checksum-fcoe-crc: on
            [fixed]
           tx-checksum-sctp: on
          scatter-gather: on
           tx-scatter-gather: on
           tx-scatter-gather-fraglist:
            off [fixed]
          tcp-segmentation-offload: on
           tx-tcp-segmentation: on
           tx-tcp-ecn-segmentation:
            off [fixed]
           tx-tcp6-segmentation: on
          udp-fragmentation-offload: off
            [fixed]
          generic-segmentation-offload: on
          generic-receive-offload: on
          large-receive-offload: on
          rx-vlan-offload: on
          tx-vlan-offload: on
          ntuple-filters: off
          receive-hashing: on
          highdma: on [fixed]
          rx-vlan-filter: on
          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]
          tx-mpls-segmentation: off [fixed]
          fcoe-mtu: off [fixed]
          tx-nocache-copy: on
          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
          

            Daofeng
          
        
        On Tue, Jun 16, 2015 at 12:55 PM,
          Daofeng Li <lidaof@xxxxxxxxx>
          wrote:

          
              Thanks Adi, I'll
                try.

              
                best,
                

                        Daofeng
                      
                    
                    On Tue, Jun 16, 2015 at
                      12:01 PM, Adi Kriegisch <adi@xxxxxxxxxxxxxxx>
                      wrote:

                      Hey!

                        
                          >    Honestly..I don't know what those
                          dropped packets, it;s just a new

                          >    installed system.

                        I see... depending on what services are
                        running on that network, this might

                        be some avahi messages or similar stuff; in case
                        this is a storage-only

                        network and there is no other stuff floating
                        around, this may well be the

                        cause for the issues...

                        
                          >    Do you mean my MTU 9000 is too high?

                        No, I don't think so. Maybe some of the
                        ethernet offloading stuff in the

                        NIC is unable to handle larger packets? You may
                        check with 'ethtool -k em1'

                        what is enabled and may try to selectively
                        disable and retest...

                        
                            -- Adi

                          
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