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b=q4O8mCN2Wldnjn2dROG4NkiHVkge2rzmi9u30M/YOygz85Hzobi2j0PY1EBOS2f75 vi70A6NF+w51j7g7FpFqmM30I7/b33bWqJk8/OxKpLUoeJsckqqCxZDh9FyRENit/G 2LV3lx5ZSMX8q/wLIeXQU3jBZd3EuN/KTX5kh49I= Date: Tue, 14 Jul 2026 21:46:04 -0700 From: Andrew Morton To: SJ Park Cc: 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 Message-Id: <20260714214604.10fc4c786277eaed523d0724@linux-foundation.org> In-Reply-To: <20260715031002.108504-1-sj@kernel.org> References: <20260715031002.108504-1-sj@kernel.org> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 62DFF20004 X-Stat-Signature: an3a9t7htk184aat7hwazzwroxf7hrx9 X-HE-Tag: 1784090766-905823 X-HE-Meta: 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 7Wn7I3mM dBmdHy1k4oNFKw5/Yh4ZGo0uabUxALY1i4+MZVdj7R4BbnWqU/BQCfDuXudkzECzBWDJqi4xOaO08inHKHKZgKVwNvJpwkZtTRgSmcp0fbf8hTxvHJPqLEZq9udf/6UyKj3njMxHmm9h6b6rWAyw7r3J7F6uqGL9A2//i3oYOF8MEPpggbThgyv0Xm2duFxDLu6cxeo6WQuyRApg95ScDJ19UDKKniS1kTPySCPxLzh2sVaQu/HilV0i1hWAidFv9WkvrPbOPz2AobZnIstB+EoEHxQ== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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?