Re: CD writing in future Linux (stirring up a hornets' nest)

From: Luke-Jr
Date: Mon Feb 13 2006 - 12:47:49 EST

On Monday 13 February 2006 17:40, Joerg Schilling wrote:
> Luke-Jr <luke@xxxxxxxxxx> wrote:
> > > I mentioned:
> > >
> > > - ide-scsi does not do DMA correctly
> >
> > IIRC, ide-scsi is deprecated and would be removed as a fix for this bug.
> > Note that ide-scsi is known to be broken in more ways than just this--
> > for example, unloading the module causes a kernel panic.
> A last word on that:
> - this bug is known for more than 2 years.
> - time to fix: less than 3 hours for the right person
> - I therefore expect a fix in less than a month or
> I must asume that Linux is not longer actively maintained.

What does it do "wrong" anyway? IIRC, DMA in general works...
Also note that since SCSI does not support DMA, I wouldn't consider lack of
DMA for ide-scsi a bug. Just because the underlying device is IDE and has DMA
support doesn't mean that the SCSI layer (which has no reason for DMA) should
use it.
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