netdev - Re: [PATCH net-next v9 2/2] page_pool: Track DMA-mapped pages and unmap them when destroying the pool

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Message-ID: <aEmwYU/V/9/Ul04P@gmail.com>
Date: Wed, 11 Jun 2025 09:35:45 -0700
From: Breno Leitao <leitao@...ian.org>
To: Toke Høiland-Jørgensen <toke@...hat.com>
Cc: "David S. Miller" <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>,
	Jesper Dangaard Brouer <hawk@...nel.org>,
	Saeed Mahameed <saeedm@...dia.com>,
	Leon Romanovsky <leon@...nel.org>, Tariq Toukan <tariqt@...dia.com>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>,
	Ilias Apalodimas <ilias.apalodimas@...aro.org>,
	Simon Horman <horms@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mina Almasry <almasrymina@...gle.com>,
	Yonglong Liu <liuyonglong@...wei.com>,
	Yunsheng Lin <linyunsheng@...wei.com>,
	Pavel Begunkov <asml.silence@...il.com>,
	Matthew Wilcox <willy@...radead.org>, netdev@...r.kernel.org,
	bpf@...r.kernel.org, linux-rdma@...r.kernel.org, linux-mm@...ck.org,
	Qiuling Ren <qren@...hat.com>, Yuying Ma <yuma@...hat.com>,
	gregkh@...uxfoundation.org, sashal@...nel.org
Subject: Re: [PATCH net-next v9 2/2] page_pool: Track DMA-mapped pages and
 unmap them when destroying the pool

Hello Toke,

On Wed, Apr 09, 2025 at 12:41:37PM +0200, Toke Høiland-Jørgensen wrote:
> Fixes: ff7d6b27f894 ("page_pool: refurbish version of page_pool code")

Do you have plan to backport this fix to LTS kernels? I am getting some
of these crashes on older kernel, and I am curious if there are plans to
backport this to LTS kernels.

--breno