On Mon, Oct 18, 1999 at 10:53:47AM +0000, jiho wrote:
> So there _is_ a disconnect feature, like with SCSI?  Hmmm....
> 
> That's what I was talking about WRT the legendary "lost interrupt" problem, 
> suggesting the drive was doing a thermal recalibration.
> 
> Is it possible the problem we all have is not with electronics, but with 
> protocols -- drives that want to do things the driver doesn't support and 
> can't deal with, or in situations where the driver doesn't think such things 
> should happen?  That too would be solved by shifting down to an older standard.

I think the 'disconnect' feature has to be explicitely asked by the driver
(I don't have the draft under hands) for each command, so I don't think
this is the problem.
I'm pretty sure now that there is a problem with interrupts in the IDE driver
(or maybe a more general problem which only affects the IDE driver).
It seems that sometimes the IDE driver gets an IRQ even when we're still at
splbio() ...
Still investigating ...

--
Manuel Bouyer, LIP6, Universite Paris VI.           Manuel.Bouyer@lip6.fr
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