Re: PCI BAR mem resource allocation "regression"

From: Linus Torvalds
Date: Sat Dec 13 2008 - 12:16:43 EST




On Fri, 12 Dec 2008, Alex Chiang wrote:
>
> I've been chasing a bug for the past week or so that I can't seem
> to figure out, and was hoping to get your eyes on it.
>
> The basic summary is, we can't allocate a memory resource for our
> BAR after a PCI hotplug operation. We've been able to bisect it
> down to d33b6fba2c4350651f3f61ff2ab858a2f116e9a4 (Resources:
> insert identical resources above existing resources).

I'm missing some pieces I'd like to see: /proc/iomem before and after, and
lspci output before and after (you do give lspci output, but only one, and
I can't tell if it's before or after).

Also, is it just the error message, or does it actually affect
functionality?

Linus
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