On Wed, 2009-06-24 at 09:29 +1000, Benjamin Herrenschmidt wrote: > On Wed, 2009-06-24 at 07:57 +1000, Benjamin Herrenschmidt wrote: > > > I tried on a POWER3 box I have here "IBM,7044-170" and things work fine > > > here with current upstream. (I suspect a much smaller machine). > > > > > > I will really need an actual bisection here... In the meantime, I'll see > > > if I can get my hand on one of these machines here. > > > > Ok so I think we may have found it... looks like > > CONFIG_MPIC_BROKEN_REGREAD is what breaks it which is enabled by PA-Semi > > support in the .config. > > > > Can you verify that disabling PA-Semi support removes that option from > > your .config and that once removed, it works again ? > > > > We don't know yet -why- it breaks it, still investigating. > > Do the following patch also fix it ? Doesn't fix my machine :/ cheers
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