[U-Boot-Users] RE: Virtex-II Pro and Instruction Prefetching

[Frank Smith]

> -----Original Message-----
> From: wd at denx.de [mailto:wd at denx.de]

> > there's a bug in cpu/ppc4xx/start.S I've pointed out previously that
> > nobody has rendered an opinion on as of yet :-)
> 
> You mean the STD_EXCEPTION vs. CRIT_EXCEPTION ?
> 
> I am waiting for Stefan to pick this up :-)
> 
> But actually it should not matter at all: your code is never supposed
> to run into such an exception.  If  it's  crashing  anyway  there  is
> little difference if it's crashing "correctly" or not ;-)

The problem with it crashing incorrectly is that the Oops message 
lies to you, as it's reporting the contents of SRR0/SRR1, not SRR2/SRR3 
as it should be for a critical exception. Makes it more difficult to
debug when you think the wrong instruction is causing the exception.

Thanks,
-Frank.
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