[Intel-wired-lan] [PATCH] i40e: Invoke softirqs after napi_reschedule
Benjamin Poirier
bpoirier at suse.com
Fri Jan 13 01:51:00 UTC 2017
On 2017/01/12 17:15, Eric Dumazet wrote:
> On Thu, 2017-01-12 at 17:04 -0800, Benjamin Poirier wrote:
> > The following message is logged from time to time when using i40e:
> > NOHZ: local_softirq_pending 08
> >
> > i40e may schedule napi from a workqueue. Afterwards, softirqs are not run
> > in a deterministic time frame. The problem is the same as what was
> > described in commit ec13ee80145c ("virtio_net: invoke softirqs after
> > __napi_schedule") and this patch applies the same fix to i40e.
>
> Yes, I believe mlx4 has a similar problem in mlx4_en_recover_from_oom()
Indeed, I was going to send a patch for mlx4 after this one is accepted.
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