From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [BUG] net: cpu offline cause napi stall Date: Mon, 06 Jun 2011 14:50:51 -0700 (PDT) Message-ID: <20110606.145051.267562411413352856.davem@davemloft.net> References: <20110601181253.GA2374@osiris.boeblingen.de.ibm.com> <1306958592.3946.0.camel@edumazet-laptop> <20110601204233.GA2410@osiris.boeblingen.de.ibm.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: eric.dumazet@gmail.com, blaschka@linux.vnet.ibm.com, netdev@vger.kernel.org, linux-s390@vger.kernel.org To: heiko.carstens@de.ibm.com Return-path: Received: from shards.monkeyblade.net ([198.137.202.13]:60300 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752569Ab1FFVu7 convert rfc822-to-8bit (ORCPT ); Mon, 6 Jun 2011 17:50:59 -0400 In-Reply-To: <20110601204233.GA2410@osiris.boeblingen.de.ibm.com> Sender: netdev-owner@vger.kernel.org List-ID: =46rom: Heiko Carstens Date: Wed, 1 Jun 2011 22:42:34 +0200 > On Wed, Jun 01, 2011 at 10:03:12PM +0200, Eric Dumazet wrote: >> Le mercredi 01 juin 2011 =E0 20:12 +0200, Heiko Carstens a =E9crit : >> > 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); >> > > > =20 >> > > > raise_softirq_irqoff(NET_TX_SOFTIRQ); >> > > > local_irq_enable(); >> > >=20 >> > > Please make sure we raise NET_RX_SOFTIRQ on new cpu if necessary= =2E >> >=20 >> > Well, see two lines below the list_splice_init() call ;) >>=20 >> I see nothing... NET_TX_SOFTIRQ and NET_RX_SOFTIRQ are not the same=20 >=20 > Indeed. I must be blind. Can I get a final version of this patch with proper commit log message, signoffs, etc.? Thanks!