linux-kernel - Re: [patch] revert: [NET]: Fix races in net_rx

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Message-ID: <20070719195650.GA2136@elte.hu>
Date:	Thu, 19 Jul 2007 21:56:50 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Olaf Kirch <olaf.kirch@...cle.com>
Cc:	"Kok, Auke" <auke-jan.h.kok@...el.com>,
	Jarek Poplawski <jarkao2@...pl>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, davem@...emloft.net
Subject: Re: [patch] revert: [NET]: Fix races in net_rx_action vs netpoll


* Olaf Kirch <olaf.kirch@...cle.com> wrote:

> Does the following help?

> --- build-2.6.orig/drivers/net/netconsole.c
> +++ build-2.6/drivers/net/netconsole.c
> @@ -70,7 +70,7 @@ static void write_msg(struct console *co
>  	int frag, left;
>  	unsigned long flags;
>  
> -	if (!np.dev)
> +	if (!np.dev || !netif_running(np.dev))
>  		return;

nope - with this patch applied the box still has no network, symptoms 
are similar. (should i apply the WARN_ON() patch too?)

	Ingo
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