From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0D7C5227EBE; Wed, 11 Jun 2025 20:12:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749672765; cv=none; b=n1Gp1ewjMb2sMTHuEaFFyJ5jdhX7imkAW0vtwqC7tt0ALme6LO3U4TCZEnFlnGkobYP182pto8ijjjW6m0ahmB96CJwWA9agAjD05RaHK/8uecRZnTFEvraIa4j6Yt/7PhcIrX48X/k6B7BtYAD5no0WE1Nq2WTPDUxLcGQJ3Dw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749672765; c=relaxed/simple; bh=9nqEVQIyWQTeicPrYQ8dyh53cOsm4dE21OOdaNKHwg0=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=qmFVdqI8k4pVRNGjYMK/S0rjNHWKgHmDZ76KW9pF0pzcjclG/6wpJ7DJ2OLKTtmQqmSTHztOSSc2r8vNocuYoejEObQ+BkmNeo6sSLGSvEBS1XkFMPDbkzyDKCfubsE+rS/i98zUIhKMya2Wdr7JkoJBmn7a/sepuxRhVGxgihM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=H9NRsVwW; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="H9NRsVwW" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A800FC4CEE3; Wed, 11 Jun 2025 20:12:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1749672763; bh=9nqEVQIyWQTeicPrYQ8dyh53cOsm4dE21OOdaNKHwg0=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=H9NRsVwWkvxvvOb9bv5M0NgcZdQNSfhNtB0xlSTYczSU3Syd1gbLQpCqVrRSuhusN hTNsGJCEeuM6WbYbBpQ0WikcQqPaoWnjLLPSq7Z9cDRgIPcXxNPC/nZitazvhZPjdF iDVOUPB0XFtMMjVZGvz5V5JrhTMctPvEVwOq2A0G2HC4ozMFFAOQXnAWp7mE4NY0jh SkUE/hZUdZy3MZ/cuUnIc3HbwVluIG4KsoB9VMnD4pFmyWOobTlWO9YB2yGrpWQMTN A2BjGfeDUVnEzlGokFMt9hV5jrp0LJHc9SeehVvzK4g0qFSL3iTQHxcyHN+Aew/lYT VtLMDJeuYgwcA== Date: Wed, 11 Jun 2025 13:12:41 -0700 From: Jakub Kicinski To: Breno Leitao Cc: Toke =?UTF-8?B?SMO4aWxhbmQtSsO4cmdlbnNlbg==?= , "David S. Miller" , Jesper Dangaard Brouer , Saeed Mahameed , Leon Romanovsky , Tariq Toukan , Andrew Lunn , Eric Dumazet , Paolo Abeni , Ilias Apalodimas , Simon Horman , Andrew Morton , Mina Almasry , Yonglong Liu , Yunsheng Lin , Pavel Begunkov , Matthew Wilcox , netdev@vger.kernel.org, bpf@vger.kernel.org, linux-rdma@vger.kernel.org, linux-mm@kvack.org, Qiuling Ren , Yuying Ma , gregkh@linuxfoundation.org, sashal@kernel.org Subject: Re: [PATCH net-next v9 2/2] page_pool: Track DMA-mapped pages and unmap them when destroying the pool Message-ID: <20250611131241.6ff7cf5d@kernel.org> In-Reply-To: References: <20250409-page-pool-track-dma-v9-0-6a9ef2e0cba8@redhat.com> <20250409-page-pool-track-dma-v9-2-6a9ef2e0cba8@redhat.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On Wed, 11 Jun 2025 09:35:45 -0700 Breno Leitao wrote: > On Wed, Apr 09, 2025 at 12:41:37PM +0200, Toke H=C3=B8iland-J=C3=B8rgense= n wrote: > > Fixes: ff7d6b27f894 ("page_pool: refurbish version of page_pool code") = =20 >=20 > 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. I think it's worth disclosing that the crashes we see are in error recovery on unstable HW. My vote would be to keep this out of stable until it reaches at least one final release.