Messages in this thread | | | From | Rusty Russell <> | 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 09:57:41 +1030 |
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Jason Wang <jasowang@redhat.com> writes: > 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@rustcorp.com.au> > Cc: Michael S. Tsirkin <mst@redhat.com> > Cc: Wanlong Gao <gaowanlong@cn.fujitsu.com> > Acked-by: Michael S. Tsirkin <mst@redhat.com> > Reviewed-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> > Signed-off-by: Jason Wang <jasowang@redhat.com> > --- > The patch is need for 3.8 and above.
Please put 'CC: stable@kernel.org # 3.8+' in the commit.
(The specification of the stable line is poor, but that seems to be one common method).
Cheers, Rusty.
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