Hello:
This series was applied to bpf/bpf.git (refs/heads/master):
On Fri, 4 Dec 2020 23:59:45 -0800 you wrote:
> From: Dongdong Wang <wangdongdon...@bytedance.com>
>
> The per-cpu bpf_redirect_info is shared among all skb_do_redirect()
> and BPF redirect helpers. Callers on RX path are all in BH context,
> disabling preemption is not sufficient to prevent BH interruption.
>
> In production, we observed strange packet drops because of the race
> condition between LWT xmit and TC ingress, and we verified this issue
> is fixed after we disable BH.
>
> [...]
Here is the summary with links:
- [net,v2,1/2] lwt: disable BH too in run_lwt_bpf()
https://git.kernel.org/bpf/bpf/c/d9054a1ff585
- [net,v2,2/2] lwt_bpf: replace preempt_disable() with migrate_disable()
https://git.kernel.org/bpf/bpf/c/e3366884b383
You are awesome, thank you!
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