From: Jason Wang <jasowang@xxxxxxxxxx> Date: Tue, 29 Oct 2013 15:11:07 +0800 > commit 3ab098df35f8b98b6553edc2e40234af512ba877 (virtio-net: don't respond to > cpu hotplug notifier if we're not ready) tries to bypass the cpu hotplug > notifier by checking the config_enable and does nothing is it was false. So it > need to try to hold the config_lock mutex which may happen in atomic > environment which leads the following warnings: ... > A correct fix is to unregister the hotcpu notifier during restore and register a > new one in resume. > > Reported-by: Fengguang Wu <fengguang.wu@xxxxxxxxx> > Tested-by: Fengguang Wu <fengguang.wu@xxxxxxxxx> > Cc: Wanlong Gao <gaowanlong@xxxxxxxxxxxxxx> > Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx> > Cc: Michael S. Tsirkin <mst@xxxxxxxxxx> > Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx> > --- > This patch is needed for 3.8 and above. Applied and queued up for -stable, thanks Jason. _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
