linux-kernel - Re: Badness on the Warp

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Date:	Mon, 22 Jun 2009 07:48:35 +0300
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	Sean MacLennan <smaclennan@...atech.com>
Cc:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Frans Pop <elendil@...net.nl>, linuxppc-dev@...abs.org,
	linux-kernel@...r.kernel.org,
	David Gibson <david@...son.dropbear.id.au>,
	Paul Mackerras <paulus@...ba.org>
Subject: Re: Badness on the Warp

Hi Sean,

On Mon, Jun 22, 2009 at 1:36 AM, Sean MacLennan<smaclennan@...atech.com> wrote:
> On Mon, 22 Jun 2009 08:25:04 +1000
> Benjamin Herrenschmidt <benh@...nel.crashing.org> wrote:
>
>> Right, our interrupt controllers need those fixes, they are low
>> on my priority list since it's a reasonably harmless warning and I'm
>> still chasing some actual breakage (though maybe not directly related
>> to your patches).
>>
>> Kumar already submitted a couple, Frans, feel free to beat me
>> at converting UIC (just use kmalloc directly in there instead
>> of alloc_bootmem).
>
> I can make the changes to UIC if you want. They badness is harmless (it
> ends up calling kzalloc anyway), but hard to explain to our PV (Product
> Verification) department that they can ignore what looks like a crash ;)

Right. We can also wrap the WARN_ON() in CONFIG_DEBUG_BOOTMEM or
something too but I'd prefer a proper fix here.

                                   Pekka
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