Re: kernel BUG at arch/sparc64/mm/fault.c:413!

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From: Vince Weaver <vince@xxxxxxxxxx>
Date: Fri, 26 Jan 2007 14:44:44 -0500 (EST)

> 
> > Vince, I think I figured out what the bug is, can you test the
> > following patch?  If we set %g5 with the fault address here, we have
> > to set %g4 too.  This allows to correctly handle a DTLB-PROT trap for
> > a window spill during trap entry for another top-level fault.  The
> > non-Niagara DTLB-PROT code does this properly, it's just the sun4v
> > side that had the bug.
> 
> Great news!  This fixes things.  The gcc snapshot has been compiling now 
> for over an hour without a problem, wheras before the bug would appear 
> within seconds.
> 
> Thanks for fixing this,

Awesome, thanks for testing.
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