[PATCH 0/3] nvme-tcp: fixup I/O stall on congested sockets

[Keith Busch]

On Fri, Mar 07, 2025 at 02:27:59PM +0100, Hannes Reinecke wrote:
> I have been chasing keep-alive timeouts with TLS enabled in the last few
> days (weeks, even :-( ). On larger setups (eg with 32 queues) the connection
> never got established properly as I've been hitting keep-alive timeouts before
> the last queue got connected.
> Turns out that occasionally we simply do not send the keep-alive request; it's
> been added to the request list but the io_work workqueue function is never
> restarted as it bails out after nvme_tcp_try_recv() returns -EAGAIN.
> During debugging I also found that we're quite lazy with the list
> handling of requests, so I've added two preliminary patches to ensure
> that all list elements are properly terminated.

Thanks, this all looks pretty good to me.