linux-kernel - Re: [BUG][mvebu] mvneta: cannot request irq 25 on openblocks-ax3

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Message-ID: <20130319133928.GE3137@localhost>
Date:	Tue, 19 Mar 2013 10:39:30 -0300
From:	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>
To:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Cc:	linux-arm-kernel@...ts.infradead.org,
	thomas.petazzoni@...e-electrons.com,
	Jason Cooper <jason@...edaemon.net>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	"yrl.pp-manager.tt@...achi.com" <yrl.pp-manager.tt@...achi.com>,
	Gregory Clement <gregory.clement@...e-electrons.com>
Subject: Re: [BUG][mvebu] mvneta: cannot request irq 25 on openblocks-ax3

Hi Masami,

On Tue, Mar 19, 2013 at 10:12:37PM +0900, Masami Hiramatsu wrote:
> 
> Here I've hit a bug on the recent kernel. As far as I know, this bug
> exists on 3.9-rc1 too.
> 
> When I tried the latest mvebu for-next tree
> (git://git.infradead.org/users/jcooper/linux.git mvebu/for-next),
> I got below warning at bootup time and mvneta didn't work (link was never up).
> I ensured that "ifconfig ethX up" always caused that.
> 
> Does anyone succeed to boot openblocks-ax3 recently or hit same
> trouble?

This is a known bug. Gregory Clement already has a fix and he
will submit it soon. In case you need this fixed ASAP, I'm attaching
you a patch with a fix.

Please note the attached patch is not ready for mainline inclusion,
as I said Gregory will submit a cleaner version soon.

-- 
Ezequiel García, Free Electrons
Embedded Linux, Kernel and Android Engineering
http://free-electrons.com

View attachment "0001-net-mvneta-convert-to-percpu-interrupt.patch" of type "text/plain" (1800 bytes)