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Message-Id: <20131017.155545.3271252320146665.davem@davemloft.net> Date: Thu, 17 Oct 2013 15:55:45 -0400 (EDT) From: David Miller <davem@...emloft.net> To: jasowang@...hat.com Cc: mst@...hat.com, rusty@...tcorp.com.au, virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, gaowanlong@...fujitsu.com Subject: Re: [PATCH net V2 1/2] virtio-net: don't respond to cpu hotplug notifier if we're not ready From: Jason Wang <jasowang@...hat.com> 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 <rusty@...tcorp.com.au> > Cc: Michael S. Tsirkin <mst@...hat.com> > Cc: Wanlong Gao <gaowanlong@...fujitsu.com> > Acked-by: Michael S. Tsirkin <mst@...hat.com> > Reviewed-by: Wanlong Gao <gaowanlong@...fujitsu.com> > Signed-off-by: Jason Wang <jasowang@...hat.com> Applied and queued up for -stable. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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