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 E09693C584A; Wed, 15 Jul 2026 13:26:41 +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=1784122002; cv=none; b=mCa878/SmC9n7lCjNzeXCq4lgqiJFf4tRgrXmuphX62swi2c2U+yDTdUC/7JXIFwxPKRt3VBS4xNelnJrgIZAWhIyh/ehaFoFDrBGslax5swytQgKIU1pIfW8ukh8SwzcAEIRztPcMZJDW2MrUYFGSDVpTlJrxoGeiwY1rdDO6I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784122002; c=relaxed/simple; bh=553leeckiutKczcmPf0IbB7xPYgBFvVEfa1gh+zkrlM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=gpScv+8sb6TbDgLKCRl+tvYTzRcAO+JxkUb6S/JmXKT6AUuDIysxkdaDbm7tG7XqB/4cxay1l1036O5u7vy2Y1xcz6Rkcfd3bTsAKogYFfpKRALdA0KhYLp+AJWUF8i+O14BM34SnB/LAvz6G+Pthvqhu4oozjPvDUY9tDANN/Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=UL1oh0Eq; 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="UL1oh0Eq" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 20A5C1F000E9; Wed, 15 Jul 2026 13:26:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1784122001; bh=tmYHqq0/128SCrxfsjngrNQmfX+jHP8UqCkkUU5HEDY=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=UL1oh0EqJ+8kpvTbuQ0OyYXKDMTRlMW2BhHcEKRAqhLn/A30MdpJca7awDnQtdJKm eH7liGconcDiy6RyMcLyDvW9uoU86VTA2lZOsh1yEasDWDPpD7N8s3qYskStzdwLqD 4SWXiIBW0RMjK2EnIHBV364zBTEvVSSvVDp12vH/56QywovkyRBj0wc9xzFjOn4bsn gLxSQajgj+bG9/w2IHFK9L63NrNB0KOl6gyVsI/tlg8KrgubxQRQYSv+TjSJ0d12si Zfay2rGl7MbF5EDY1jWwOX/+VV1iqTzk48M7rplC8Y1hyZKJNar+jpd8OqULiM6ZY5 qpRpobpRFnoCA== From: SJ Park To: Andrew Morton Cc: SJ Park , stable@vger.kernel.org, Brendan Higgins , David Gow , Fernand Sieber , Leonard Foerster , Quanmin Yan , SeongJae Park , Shakeel Butt , damon@lists.linux.dev, kunit-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH v1.1 0/6] mm/damon: unurgent fixes for infinite loop, NULL de-ref and races Date: Wed, 15 Jul 2026 06:26:32 -0700 Message-ID: <20260715132633.32217-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260714214604.10fc4c786277eaed523d0724@linux-foundation.org> References: Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Tue, 14 Jul 2026 21:46:04 -0700 Andrew Morton wrote: > On Tue, 14 Jul 2026 20:09:55 -0700 SJ Park wrote: > > > Sashiko found a few issues in DAMON that could cause infinite loop, NULL > > dereference and monitoring results degradation. The first two sounds > > scary but the infinite loop happens only under unreasonable user setup. > > The NULL dereference is only in a unit test. Monitoring results > > degradation is trivial since it is only best-effort, and those happens > > from only unlikely races. Still those are bugs that better to fix if > > possible. Fix those. > > > Subject: [PATCH v1.1 0/6] ... > > So... what is the significance of "1.1" here? As the changelog says, one more unurgent fix (patch 5 of this sereis) has added on top of the v1. Maybe my versioning scheme is confusing you. I increase minor version when it is purely for findings from Sashiko and if the change seems not really big. I do so because I realized it is easy to get version number large in short term when I respect Sashiko, and it may look confusing for some people. Maybe a better approach is running Sashiko in my local, but I don't have AI setup in my development environment... Let me know if this only confuses and bothers you and you have a suggestion. Thanks, SJ