From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 0E9BD31F9A7; Sun, 2 Aug 2026 18:54:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785696881; cv=none; b=cD/uvhIOMx9p+ogxdtBa5rhxlVAInSiX/7UK6fZvyLYzQo2W3JEmitYL0kkdUwShwd1Q7LQQVST367VMJiEgZpiDCiq3I13hZ3gh1QBif1wxgAC1jusg0y2koNF6cEh0qi5X5F2bnkVW73kX3traQYOWvdN4RgCr5gyv3A9nDqQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785696881; c=relaxed/simple; bh=ghfFXlr9KhD1jZsE5cv7wrvbhfgr/WBF5uJoiQTwOE8=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=Vm5H3Y8jSsQPb+XoevBrcMZl8gtRKw5dTCyP4FgIyFhEUrW/jNh9U5p49I/FQNaiFv2XSDx9kM2GKyzFx8Cs2XXG6MdmRkacL5DuG4sHZUNWu77B/jymvKXmP894za5uUx4BP4yVxzZg5hDV4s2go+kyyMbF9GFwMai6AkSIbXw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=R3FE+Te6; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="R3FE+Te6" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 729DB1F000E9; Sun, 2 Aug 2026 18:54:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785696879; bh=jhwpPt8VETeDzUlgcaGfy/+m0kpeMGsxwzMN5hnljhc=; h=From:To:Cc:Subject:Date; b=R3FE+Te6xd/7Z5It05vdlY7Ysz864FmCc4VL0KGlQE6lPKkrLYH2KMDVrsNk6kpxn pVM4I3oNZ6lN5TTtdNNS/fY1iqcHDgOXsIGxRSFIHhu0fboDtbee3N0/CKXMmKM8B7 K5ubgsI9OBJgD1uuHcJEyT11Nf3qLUhJCkq8jkBjjrZ6S4I/nMgholX8BPEI9e7ze1 +VdkhALsP4l5iZVfIPfcapLGpJm75+Ba6MmLD2YtYIN0BXGDZMSC2kHlMnzNCJVO/8 jp24ZM1+O3km1Q9ZzC7+dZO4r5BVykm+w3x2fi2ETQRumUzgB2Qd0Wqxa8/srpnUFj g2v8sQ0wgeN5w== From: SJ Park To: Cc: SJ Park , stable@vger.kernel.org, Andrew Morton , Liew Rui Yan , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH 0/2] mm/damon/{reclaim,lru_sort}: fix commit_inputs infinite hang Date: Sun, 2 Aug 2026 11:54:26 -0700 Message-ID: <20260802185430.9940-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Writing 'Y' to commit_inputs parameters of DAMON_RECLAIM and DAMON_LRU_SORT before the modules were ever turned on causes infinite hang. Fix those. The issue was discovered [1] by Sashiko. [1] https://lore.kernel.org/20260802173021.762-1-sj@kernel.org SJ Park (2): mm/damon/reclaim: skip damon_call() if ctx has not started mm/damon/lru_sort: skip damon_call() if ctx has not started mm/damon/lru_sort.c | 11 ++++++----- mm/damon/reclaim.c | 11 ++++++----- 2 files changed, 12 insertions(+), 10 deletions(-) base-commit: d6580a342bc8c459628d2b68b313e9c0668bca59 -- 2.47.3