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

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Message-ID: <1306958592.3946.0.camel@edumazet-laptop>
Date:	Wed, 01 Jun 2011 22:03:12 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Heiko Carstens <heiko.carstens@...ibm.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

Le mercredi 01 juin 2011 à 20:12 +0200, Heiko Carstens a écrit :
> 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 ;)

I see nothing... NET_TX_SOFTIRQ and NET_RX_SOFTIRQ are not the same 


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