Re: [PATCH] io_uring/zcrx: requeue multishot receives stopped by a local resource

On Wed, 23 Sep 2026 09:20:44 +0000, Junyuan Feng wrote:

A multishot RECV_ZC can go idle with unread TCP data when a receiver-local
resource runs out. An empty copy-fallback niov freelist returns -ENOMEM;
a full CQ returns -ENOSPC. After partial progress the stop reason is
lost: io_zcrx_copy_chunk() and io_zcrx_recv_skb() report the copied
bytes, and tcp_read_sock() drops an error from a later call once earlier
data was consumed. The edge-triggered request is then not requeued, so
it cannot consume the remaining data until another socket event arrives.

[...]

Applied, thanks!

[1/1] io_uring/zcrx: requeue multishot receives stopped by a local resource
      commit: 98ad5b63f5041dc354a6e694f4a9436f74e0681b

Best regards,
-- 
Jens Axboe