Re: [BUG] ide dma_timer_expiry, then hard lockup

[Sergei Shtylyov]

Alan Cox wrote:
> > >   Indeed... but the thing is we don't know what's asserted in this case 
> > > -- remember, it's reading the status register that locks everything up...

> > Exactly.  And IORDY shouldn't really apply there,
> > unless some nitwit standards person wrote it into a spec..

> Could it be we need to reset the state machine at this point before we
> touch the registers again - that wouldn't be the first controller with
> this limit and undocumented.

> On the 370 we already 

   Yeah, that could be. And because IORDY pin becomes DSTROBE for UltraDMA it 
might have stuck low due to this (if the chip never asserted STOP)...

> Alan

MBR, Sergei
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