Re: reaction to a smaller buffer size

From: Oliver Neukum (Oliver.Neukum@lrz.uni-muenchen.de)
Date: Sun Nov 19 2000 - 11:01:07 PST

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    > Oliver,
    >
    > agreed, it is really not likely that we get different amount of memory
    > after different open calls. But exactly this can be a problem: Imagine a
    > Sane user working on an ooverloaded Linux box, who gets from time to
    > time segfaults, and that [s]he can't reproduce this behaviuor reliably.
    > How someone get the idea that this behaviour might be caused by a
    > changing sanei_scsi_max_request_size?

    There must be a misunderstanding.

    There are situations where it's almost _certain_ that the
    kernel _will_ give out buffers of _different_ sizes.

    If you have one host adaptor which does scatter/gather and
    a second host adaptor which does no scatter/gather,
    the first will result in a buffer of 128K and the second a
    buffer of 32K.

            Regards
                    Oliver

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