netdev - Re: [BUG] net: cpu offline cause napi stall

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Date:	Wed, 1 Jun 2011 20:12:54 +0200
From:	Heiko Carstens <heiko.carstens@...ibm.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	Frank Blaschka <blaschka@...ux.vnet.ibm.com>, davem@...emloft.net,
	netdev@...r.kernel.org, linux-s390@...r.kernel.org
Subject: Re: [BUG] net: cpu offline cause napi stall

On Wed, Jun 01, 2011 at 06:55:21PM +0200, Eric Dumazet wrote:
> > +	/* Append NAPI poll list from offline CPU. */
> > +	list_splice_init(&oldsd->poll_list, &sd->poll_list);
> >  
> >  	raise_softirq_irqoff(NET_TX_SOFTIRQ);
> >  	local_irq_enable();
> 
> Please make sure we raise NET_RX_SOFTIRQ on new cpu if necessary.

Well, see two lines below the list_splice_init() call ;)
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