Re: [patch] net: dev_watchdog() locking fix

From: Andrew Morton
Date: Mon Dec 11 2006 - 15:12:10 EST


On Mon, 11 Dec 2006 18:51:11 +1100
Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> wrote:

> 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.
>

I'll try that. I wonder what will explode now..
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