linux-kernel - Re: [PATCH net-next v4] page_pool: Add page_pool_release

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Message-ID: <47152311-1357-44f8-ae12-61e4850e62c6@kernel.org>
Date: Mon, 19 Jan 2026 17:43:20 +0100
From: Jesper Dangaard Brouer <hawk@...nel.org>
To: Jakub Kicinski <kuba@...nel.org>, Leon Hwang <leon.hwang@...ux.dev>
Cc: netdev@...r.kernel.org, Ilias Apalodimas <ilias.apalodimas@...aro.org>,
 Steven Rostedt <rostedt@...dmis.org>, Masami Hiramatsu
 <mhiramat@...nel.org>, Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
 "David S . Miller" <davem@...emloft.net>, Eric Dumazet
 <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>,
 Simon Horman <horms@...nel.org>, kerneljasonxing@...il.com,
 lance.yang@...ux.dev, jiayuan.chen@...ux.dev, linux-kernel@...r.kernel.org,
 linux-trace-kernel@...r.kernel.org, Leon Huang Fu <leon.huangfu@...pee.com>
Subject: Re: [PATCH net-next v4] page_pool: Add page_pool_release_stalled
 tracepoint

On 19/01/2026 17.37, Jakub Kicinski wrote:
> On Mon, 19 Jan 2026 18:21:19 +0800 Leon Hwang wrote:
>> Introduce a new tracepoint to track stalled page pool releases,
>> providing better observability for page pool lifecycle issues.
> 
> Sorry, I really want you to answer the questions from the last
> paragraph of:
> 
>   https://lore.kernel.org/netdev/20260104084347.5de3a537@kernel.org/

Okay, I will answer that, if you will answer:

What monitoring tool did production people add metrics to?

People at CF recommend that I/we add this to prometheus node_exporter[0].
Perhaps somebody else already added this to some other FOSS tool?

--Jesper

[0] https://github.com/prometheus/node_exporter