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SubjectRe: SA_INTERRUPT
On Sat, Sep 30 2000, Sandy Harris wrote:
> Don Becker has some text at:
>
> http://www.scyld.com/expert/irq-conflict.html
>
> which includes a section:
>
> > Why SA_INTERRUPT in the SCSI drivers is a Bad Thing
>
> > ... it could potentially have a very negative impact on all other interrupt-driven
> > kernel service. That includes just about everything ...
> >
> > I believe that very few complex devices can be correctly run by a device driver
> > that uses SA_INTERRUPT.
>
> So I grepped drivers/*/*.c in the nearest handy kernel source, which happened to be
> 2.2.16, and found 113 uses of SA_INTEERUPT, 64 in drivers/scsi/*.c and the rest spread
> around.
>
> Do we have a problem? Should it be fixed as part of the cleanup before 2.4.0?

No. SA_INTERRUPT is a must today. Its much better to just do BIOS tweaks to force
irq assignments. Thats just IMHO.

--
Torben Mathiasen <tmm@image.dk>
Linux ThunderLAN maintainer
http://tlan.kernel.dk
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