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SubjectRe: 2.4.22-rc2 ext2 filesystem corruption
On Mer, 2003-08-13 at 19:13, Martin Maney wrote:
> At this point the outcome was pretty much a foregone conclusion, but
> yep, reverting to ".id" stopped the corruption for this test case. As
> Alan said, it "fixed" it only because that incorrect test happens to
> force the driver to use the lower DMA speed.


> I suppose the obvious bandaid would be to add a config option or yet
> another /proc/something kluge to let Promise chips be throttled on
> purpose, rather than fortuitously. For my own use, I think I'm just
> going to reconfigure to avoid the Promise controller on this machine.

I think the real thing is to find the bug. I guess pdc202xx_old.c needs
an audit at this point.

> I do have one casual question, if someone should have the answer. The
> driver only talks about a 66MHz high speed; does that mean that the
> 20265 never gets run at its full speed under Linux, or is it just old
> terminology from back when UDMA66 was the top speed?

The latter.

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