On Sun, 18 Mar 2001, Jens Axboe wrote:
>
> The 256 is _not_ a bug in the driver, it's more likely a bug in your
> drive. 256 is a perfectly legal transfer size. That said, maybe it is
> a good idea to leave it at 255 just for safety on drives not handling
> 0 sectors == 128kB transfer.
Agreed. That would be a trivially easy bug in the firmware, limiting to
255 sectors seems safer.
Linus
Yes, possibly.
I checked old standards, and see that "0 means 256 as a sector count"
is already in ATA-1.
Is there any evidence that other people have been hit by this?
Unfortunately, the
"status error: status=0x58 { DriveReady SeekComplete DataRequest }"
is reported frequently these days, and has many causes.
In old reports it is rare. (E.g. none in lk for 1997.)
Paul: is there only one disk that you can make fail this way?
Andries
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