linux-kernel - Re: [patch] net: dev

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Date:	Mon, 11 Dec 2006 18:51:11 +1100
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Andrew Morton <akpm@...l.org>
Cc:	David Miller <davem@...emloft.net>, mingo@...e.hu,
	alan@...rguk.ukuu.org.uk, lenb@...nel.org,
	linux-kernel@...r.kernel.org, ak@...e.de, torvalds@...l.org
Subject: Re: [patch] net: dev_watchdog() locking fix

On Sun, Dec 10, 2006 at 11:45:08PM -0800, Andrew Morton wrote:
> 
> It spits a nasty during bringup
> 
> e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
> forcedeth.c: Reverse Engineered nForce ethernet driver. Version 0.59.
> netconsole: device eth0 not up yet, forcing it
> e1000: eth0: e1000_watchdog: NIC Link is Up 100 Mbps Full Duplex
> WARNING (!__warned) at kernel/softirq.c:137 local_bh_enable()

Normally networking isn't invoked with interrupts turned off, but
I suppose we don't have a choice here.  This is unique being a
place where you can get called with BH on, off, or IRQs off.

Given that this is only used for printk, the easiest solution is
probably just to disable local IRQs instead of BH.

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
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