From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Gary Thomas <gary@mlbassoc.com>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: MPC5200 VIRQ question
Date: Fri, 12 Dec 2008 08:00:09 +1100 [thread overview]
Message-ID: <1229029209.22413.179.camel@pasglop> (raw)
In-Reply-To: <49412AD4.1070403@mlbassoc.com>
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.
Cheers,
Ben.
next prev parent reply other threads:[~2008-12-11 21:00 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-04 13:51 MPC5200 VIRQ question Gary Thomas
2008-12-08 8:03 ` Benjamin Herrenschmidt
2008-12-11 1:04 ` Gary Thomas
2008-12-11 1:59 ` Benjamin Herrenschmidt
2008-12-11 14:59 ` Gary Thomas
2008-12-11 21:00 ` Benjamin Herrenschmidt [this message]
2008-12-11 2:01 ` Jon Smirl
2008-12-11 2:04 ` Jon Smirl
2008-12-11 7:16 ` Grant Likely
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