Re: [PATCH] [RFC] fix kernel crash (protection id trap) when

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On Wed, Dec 17, 2008 at 10:02:13PM -0500, John David Anglin wrote:
> > Although, I don't think we're supposed to ever be taking a P. Id trap on
> > a userspace process as the kernel...
> 
> Ok, should P and/or D be on?
> 
> Assuming the protection id isn't wrong, then the WD bit must be on.
> A problem with the WD bit might explain Helge's comment.
> 
> As a start, dumping CR 8, 9, 12 and 13 might help debug the problem.
> 
> There might be a problem restoring access IDs after a cache purge or
> TLB insertion.
> 

I'm starting a build of ruby now, with some debugging gunk added
to dump the pid %crs, we'll see how it goes in a few hours...

re, Kyle
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