Re: IDE-Driver Disk Accounting Missing, Maybe SCSI too......

Alan Cox (alan@lxorguk.ukuu.org.uk)
Tue, 11 Aug 1998 01:49:45 +0100 (BST)


> The strategy of using blacklists work as long as the number of bogus
> hardware devices is small, and well-defined. If it's random (i.e.,

The number is small, and its well defined

> depends on the cable length, or what hardware integrator put together
> the machine, etc.), then sometimes the only thing we can do is disable
> the performance hacks by default, and make the user manually turn on the

That is worse. Disabling UDMA actually makes you _more_ vulnerable to
corruption by other causes. Disabling the UDMA speed stuff also handily
disables all CRC/parity checking.

Alan

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