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Re: AlBook 12"/2.4.23-pre5-ben0: bad status dma on hdc



On Thu, 2004-01-08 at 22:41, Guido Guenther wrote:
> On Thu, Jan 08, 2004 at 09:49:12PM +1100, Benjamin Herrenschmidt wrote:
> > On Thu, 2004-01-08 at 21:15, Guido Guenther wrote:
> > > Hi,
> > > When burning CDs or when trying to play DVDs on a 12" AlBook with the
> > > build in MATSHITACD-RW CW-8122 I'm seeing heaps of:
> > > 
> > > hdc: bad status at DMA end, dstat=8480
> > > hdc: timeout waiting                    for dbdm
> > > hdc: bad status at DMA end, dstat=8480
> > > hdc: timeout waiting

Note that the DVD reads ones are different (real errors) than
the CDs ones... The CDs ones are buffer underrun (basically
the application or driver requesting more data than what the
drive actually transfer), we don't deal with that very well
at this point in the ide-pmac driver.

The DVD ones seem to be real errors, possibly wrong region setting
of the drive ?

Ben.




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