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 5260A3FE64A; Tue, 24 Mar 2026 14:15:44 +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=1774361745; cv=none; b=YWZtnZE4U/Igc+xwkAGcD9BMpH9r69K+xfh0+/UHo4D9e1lXkAhaCx9r+/zi4DZiwa0pDKDKUOebJs4Lnj2J2gNEBrO51YFFwzd8S9y6ZE7Vu4fIFPWxgRrGjqbmr/AMhZO7gtQN3oE3WoK/dH2VdZFZV0E+MEh9N4xqprKKHs4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774361745; c=relaxed/simple; bh=rdNwTeZrJVIPFYcjbtTuAiqhCIJwk99EdUukTgho27E=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=rdqhsAG/Rby8eZOVuE+mxqctLcO9kIUgx+i+KCZpSajpoT5zWDP9m+p7QRpjFeZcCevrf11Wj9m7Cff3xqI++xWezbPQ+1h3WYQylcj/Um2cvo08o4scl4VjmAot0NbcevyTm3OsyC2iiSzTCLfSqBhbDNAzuXqfpc889JplOaw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KQdclUNF; 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="KQdclUNF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 874A0C19424; Tue, 24 Mar 2026 14:15:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774361744; bh=rdNwTeZrJVIPFYcjbtTuAiqhCIJwk99EdUukTgho27E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KQdclUNFHffW5wwZjD+EMKJE50q8xQHVKyM1l83HbpGQq85u/WW1TmUgsAhwkLy3Y wN4QvlE1cbPbpP/XdoINCviYRr/vT9utsjYQCLdnIZTL2h0TvklQtTfL9+pqNUHzD4 d06Jv68Ho8g7N9ujedjENGhJMPvBhtbQQZ/FyZU/3NmhG0glTnUkPaNKKdX+9N3nTp xi6exbRRM+3UV3hWNNBsbk8NvGpHm1vTZMIVz7/hsdgJWSMMh9gNtmIh8ciYv8352+ NGEUkNodtOjhMtNAuieiovyon7/ogiNz7sXttL0NA2VjpcktfATimkMiQ1z3PzcvFn Z3/p95wngBcZQ== From: SeongJae Park To: Josh Law Cc: SeongJae Park , Markus Elfring , damon@lists.linux.dev, linux-mm@kvack.org, Andrew Morton , linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: [v3 1/3] mm/damon/sysfs: fix param_ctx leak on damon_sysfs_new_test_ctx() failure Date: Tue, 24 Mar 2026 07:15:37 -0700 Message-ID: <20260324141537.91434-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: References: Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Tue, 24 Mar 2026 07:06:25 +0000 Josh Law wrote: > > > On 24 March 2026 00:14:59 GMT, SeongJae Park wrote: > >On Mon, 23 Mar 2026 16:48:19 +0000 Josh Law wrote: > >[...] > >> Also, unconnected to our topic! > >> > >> > >> I've tried to backport Damon to 4.19 (for a personal android thing, and failed! Of course) > >> > >> Can I have a bit of help if that's fine with you? The tree is based on GitHub a bit > > > >Sure, I will be happy to help as much as I can without burning myself ;) > > > >Seems [1] Alma Linux has backported DAMON on their 4.18 kernel. Maybe you can > >try their port first? > > > >Also, what is the oldest kernel that you have to use? As newer it is, the > >backporting will be easier. When I was in AWS, I backported DAMON of v6.7 on > >the v5.10 based Amazon Linux kernel, and the source is available on GitHub. So > >if you can use 5.10 based kernel, using that could also be a good option. > > > >[1] https://oracle.github.io/kconfigs/?config=UTS_RELEASE&config=DAMON > > > > > >Thanks, > >SJ > > > >[...] > > > > well android likes using old kernels for some reasons, especially LTS, so 4.19.. Well, but the long term support of 4.19 has dead a few years ago. The oldest LTS kernel of today is 5.10 [1]. I understand some vendors might still use 4.19 kernel, though. Anyway, let me know if there is anything that I can help. I will try to help. [1] https://www.kernel.org/category/releases.html Thanks, SJ [...]