MPC5200 VIRQ question

Benjamin Herrenschmidt benh at
Fri Dec 12 08:00:09 EST 2008

On Thu, 2008-12-11 at 07:59 -0700, Gary Thomas wrote:
> Notice that of_irq_map_one() can fail for a myriad of reasons - all quiet
> (without debugging on).  This function simply masks those into "sorry..."

Right, it's not verbose on failure for various reasons. Most failures
because something went wrong -before- the failure. IE. Your missing
interrupt parent would make it go to the parent etc... and it would fail
later on for a totally different reason than the original missing
interrupt parent.

Also, there's a number of older machines out there with crap
device-trees on which we know it will fail. The PCI code has a fallback
mechanism for them.

However, there's pretty extensive debug output that you can enable
explicitely in that file.


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