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    SubjectRe: 100Mbps TCP stalls in 2.1.115
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    Andi Kleen <ak@muc.de> writes:

    > On Sun, Aug 09, 1998 at 02:36:49AM +0200, Zlatko Calusic wrote:
    > > Andi Kleen <ak@muc.de> writes:
    > >
    > > > Zlatko Calusic <Zlatko.Calusic@CARNet.hr> writes:
    > > > >
    > > > > E. g. FTP between two 100mbit hosts, transfer rate is ~50kb/sec, but
    > > > > many times it recovers after few (or few tens of) seconds.
    > > > >
    > > > > Sometimes it works, sometimes not. Tcpdump logs available on request.
    > > > >
    > > > > Any clue?
    > > >
    > > > What does /proc/net/netstat say after such a stall?
    > >
    > > {atlas} [~]% cat /proc/net/netstat
    > > TcpExt: SyncookiesSent SyncookiesRecv SyncookiesFailedEmbryonicRsts
    > > TcpExt: 0 0 0 0
    >
    > You need a kernel >= 2.1.114 for useful output, sorry.

    That was 2.1.115! :)

    > If ping is slow too it is probably a network driver problem,
    > not a TCP problem.
    >

    Hm, could be.

    I'm applying a small patch to de4x5 driver to get rid of
    annoying multiple messages during boot.

    I'll investigate further...

    Later,
    --
    Posted by Zlatko Calusic E-mail: <Zlatko.Calusic@CARNet.hr>
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