From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH net V2 1/2] virtio-net: don't respond to cpu hotplug notifier if we're not ready Date: Thu, 17 Oct 2013 15:55:45 -0400 (EDT) Message-ID: <20131017.155545.3271252320146665.davem@davemloft.net> References: <1381807139-3450-1-git-send-email-jasowang@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: mst@redhat.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org To: jasowang@redhat.com Return-path: In-Reply-To: <1381807139-3450-1-git-send-email-jasowang@redhat.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org List-Id: netdev.vger.kernel.org From: Jason Wang Date: Tue, 15 Oct 2013 11:18:58 +0800 > We're trying to re-configure the affinity unconditionally in cpu hotplug > callback. This may lead the issue during resuming from s3/s4 since > > - virt queues haven't been allocated at that time. > - it's unnecessary since thaw method will re-configure the affinity. > > Fix this issue by checking the config_enable and do nothing is we're not ready. > > The bug were introduced by commit 8de4b2f3ae90c8fc0f17eeaab87d5a951b66ee17 > (virtio-net: reset virtqueue affinity when doing cpu hotplug). > > Cc: Rusty Russell > Cc: Michael S. Tsirkin > Cc: Wanlong Gao > Acked-by: Michael S. Tsirkin > Reviewed-by: Wanlong Gao > Signed-off-by: Jason Wang Applied and queued up for -stable.