netdev - Re: e1000: assertion hit in e1000

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Date:	Sun, 20 May 2007 20:55:47 +1000
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	auke-jan.h.kok@...el.com (Kok, Auke)
Cc:	cebbert@...hat.com, netdev@...r.kernel.org
Subject: Re: e1000: assertion hit in e1000_clean(), kernel 2.6.21.1

Kok, Auke <auke-jan.h.kok@...el.com> wrote:
>
>> The source file has four extra lines at the top because of a
>> trivial wireless patch, so 898 in that code is really 894 in
>> the stock kernel.
> 
> please shared that code then.

I've had a look and e1000 is definitely buggy.

The problem is that you're calling netif_poll_enable on startup.
This is *wrong*.

netif_poll_enable can only be called if you've previously called
netif_poll_disable.  Otherwise a poll might already be in action
and you may get a crash like this.

So perhaps you should divide e1000_up into two sections, one that
is called on both start and restart and another which is only
called on restart (i.e., after e1000_down).

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/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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