On Thu, 22 Jun 2017 16:16:54 -0700 Stephen Hemminger <stephen@xxxxxxxxxxxxxxxxxx> wrote: > This problem shows up in 4.11 when netvsc driver is removed and reloaded. > The problem is that the channel is closed during module removal and the > tasklet for processing responses is disabled. When module is reloaded > the channel is reopened but the tasklet is marked as disabled. > > Patch for upstream is pending, but less urgent since problem doesn't > happen with network driver in 4.12. > > Signed-off-by: Stephen Hemminger <sthemmin@xxxxxxxxxxxxx> > --- > drivers/hv/channel.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c > index 321b8833fa6f..36c9ce191b74 100644 > --- a/drivers/hv/channel.c > +++ b/drivers/hv/channel.c > @@ -606,6 +606,8 @@ static int vmbus_close_internal(struct vmbus_channel *channel) > get_order(channel->ringbuffer_pagecount * PAGE_SIZE)); > > out: > + /* re-enable tasklet for use on re-open */ > + tasklet_enable(&channel->callback_event); > return ret; > } > Ping. What is the state of this patch? Why is it not queued for 4.11 stable?