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Sat, 03 Oct 2026 10:05:19 -0700 (PDT) Date: Sat, 3 Oct 2026 22:05:11 +0500 From: Ameer Hamza To: "David Hildenbrand (Arm)" Cc: ljs@kernel.org, rppt@kernel.org, peterz@infradead.org, akpm@linux-foundation.org, mingo@redhat.com, acme@kernel.org, namhyung@kernel.org, linux-mm@kvack.org, linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, regressions@lists.linux.dev, stable@vger.kernel.org, 4ncienth@gmail.com, sashal@kernel.org, alexander.motin@truenas.com, caleb.stjohn@truenas.com Subject: Re: [REGRESSION] secretmem: SIGBUS on memfd_secret() pages while perf record runs Message-ID: References: <20261002175651.811343-1-ameer.hamza@truenas.com> <3c5b9d1e-5ed4-4bd1-b532-39f2d4612965@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3c5b9d1e-5ed4-4bd1-b532-39f2d4612965@kernel.org> On Sat, Oct 03, 2026 at 04:14:49PM +0200, David Hildenbrand (Arm) wrote: > May I know whether this problem was found by > > (a) A real workload > > (b) A test case > > (c) Complains by some tooling (a). A root userspace process that keeps secrets in memfd_secret() failed while perf record ran on the same machine. I reduced it to the snippet in the report. Thanks, Ameer Hamza