[PATCH v2] powerpc: Add irqtrace support for 32-bit powerpc

[Dale Farnsworth]

On Sat, Apr 05, 2008 at 04:14:56PM +1100, Benjamin Herrenschmidt wrote:
> 
> On Sat, 2008-04-05 at 01:31 +0200, Johannes Berg wrote:
> > > This version takes care to save and restore *all* the volatile registers
> > > around the call to trace_hardirqs_off in transfer_to_handler, and should
> > > fix the anomalies seen by Johannes Berg.  I've tested on 7447- and 8548-
> > > based boards.
> > 
> > Still has problems on my machine. Maybe to do with non-maskable PMU
> > interrupts? (saw a patch about something like that float by, don't
> > really have any idea whether it's related to this work or not)
> 
> Or more likely he missed some clobber somewhere, it took me a while to
> get that right on ppc64 (well... hopefully it -is- right by now :-)

Yep, likely.  I'd appreciate help finding it.  I'm at a loss.  :-)

-Dale