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Date:      Tue, 18 May 1999 22:20:30 +1000
From:      Bruce Evans <bde@zeta.org.au>
To:        green@unixhelp.org, sos@freebsd.dk
Cc:        current@FreeBSD.ORG
Subject:   Re: ATA and afd (LS-120): got it WORKING!
Message-ID:  <199905181220.WAA13826@godzilla.zeta.org.au>

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>> If its just that you are unsatisfied with only max 32K transfers, thats
>> another matter, and stuff for later changes.
>
>No, it does not work at all with that maximum set. I'm using the disk to hold
>an FFS filesystem, and mounting it, BTW. See, in the old driver, it limited
>the transfer, but it ALSO queued the rest of the transfer. AFD doesn't, and
>I can tell this because I get random parts of kernel memory interspersed with
>my files (that's the corruption), so I know all of the buffer is not being
>filled. You need to queue the rest of the transfer too.

This can probably be "fixed" by turning off clustering.  Clustering is only
a large optimisation for slow disks like ZIPs :-].

Bruce


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