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    SubjectRe: 2.4.19pre10aa3
    On Thu, Jun 20, 2002 at 03:19:51PM +0200, Andrea Arcangeli wrote:
    > On Thu, Jun 20, 2002 at 03:44:59PM +0400, Andrey Nekrasov wrote:
    > > Hello Andrea Arcangeli,
    > >
    > >
    > > Kernel 2.4.19pre10aa3 + hidden_arp (from LVS)
    > >
    > >
    > >
    > > ...
    > > Intel(R) PRO/100 Fast Ethernet Adapter - Loadable driver, ver 1.8.38
    > > Copyright (c) 2002 Intel Corporation
    > >
    > > eth0: Intel(R) 8255x-based Ethernet Adapter
    > > Mem:0xfb101000 IRQ:18 Speed:100 Mbps Dx:Full
    > > Hardware receive checksums enabled
    > > cpu cycle saver enabled
    > > ...
    > >
    > > ...
    > > eth0 e100_wait_exec_cmd: Wait failed.
    > > hw tcp v4 csum failed
    > > hw tcp v4 csum failed
    > > hw tcp v4 csum failed
    > > hw tcp v4 csum failed
    > > hw tcp v4 csum failed
    > > hw tcp v4 csum failed
    > > hw tcp v4 csum failed
    > > ...
    > >
    > >
    > > Than this message is caused? It something serious also can be problems?
    >
    > probably a driver issue with hw checksum. btw interestingly the stack
    > computes the cksum by hand for every tcp incoming packet (unless
    > ip_summed is set by the driver to CHECKSUM_UNNECESSARY), this is how it
    > noticed the hw checksum was wrong. I guess it's either an e100 driver
    > issue, or an hardware issue. Maybe it's setting DF_CSUM_OFFLOAD for your
    > card despite your hardware doesn't support that feature, or maybe
    > there's something wrong in the logic that sets the skb->csum.

    you may want to try again with aa4, it has a newer e100 driver taken
    from jam2 that might make difference here.

    Andrea
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