Input/output errors on file accesses with Fedora Core 2

From: David Robson (David.Robson_at_jet.uk)
Date: 06/30/04

  • Next message: Greg Swallow: "Re: FC2 (Not FC1) vs nVidia Latest Driver" 
    Date: Wed, 30 Jun 2004 12:25:19 +0100
To: fedora-list@redhat.com

    Hi

    I have two applications that simultaneously analyse a large (~750Mb) file.
    One application does a "tail -f" on the file. The other does a "cat"

    When they are both running, after a few seconds, the "cat" process fails
    with the following error

    cat: <NAME OF MY FILE>: Input/output error

    The file is on a NFS mounted server, but the problem occurs no matter
    how I do the mounts. I have tried udp, tcp, increasing the number of
    transmissions
    and changing the buffer sizes. I am not sure if NFS is an issue. I
    have tried copying
    the file to a local disk, but then the "cat" is so quick, there isn't
    enought time for
    the error to occur.

    I am using the 2.6.6-1.435 kernel; the problem occurs for the SMP and the
    uniprocessor flavours. I am running Fedora Core 2. The applications work
    fine on RedHat 9

    Has anyone seen this before, of have any ideas?

    TIA

    Dave Robson 

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