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 B646A23E35F for ; Tue, 18 Aug 2026 01:10:52 +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=1787015453; cv=none; b=V3yYSOc7KJQeuzJhBm/nhOph4t4vO887I8KVe2ocFSh8KnwSnw0t6cYmTlfhNtZPbO059Vb2UIzM28YsguEkkhVZS61uE5Na+O0zWnmSS5kjzyly8rPiVTV9fCKN82oMgV+D0q/p/yJElVjBKD+FuYNpVTEJLxuQ04HHdzEeiNU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787015453; c=relaxed/simple; bh=hH5RTYWE0avYUyAWf2TpuHxnAcMZXyyAPSWlJI8bkXA=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=SIjkzKe6QP7flie/paATZZTZE2X3Q4hoY5M7sER6ru8mKUo/6eINuURjFaIHrsJZgQY0mlx1kXDrVvvi+LYsHvVA4VpI3MlXlNPU9uVpsNsv4MVps4Hb8GpvkGCwzR9rBXQWZdXKIQgXpTznuMtrvLW2EzqWuUL/jN76GApV+bo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Sa5S/znM; 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="Sa5S/znM" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 72E491F000E9; Tue, 18 Aug 2026 01:10:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787015452; bh=z0A10R18S5SEWv0YxlwdLoeyL5aY9H6wMv4Dl1iSYuk=; h=From:To:Subject:Date; b=Sa5S/znMrHoiXRA7Cafhx0X8fdLNcpyebq0sYGB6WbTTR/n19p3KW7/642L+0oXjz Hgh+YMJdANEBhu7IcEdug5j+uKLOx+vzhmVFJmo8IEubQxEUHeFoTPDg8O7JSvgsAD QEIzymy0gJKZYYKa+7RJLJjZOlObG0fWUWDBxQSOcjzKVE+DSyyw2HwMlQpXWT6Cmy aisrR5T8oL0FtLOkWUm0YK3CeRIHXY/w2ZZfA6TBrA2MUWFXPq4Uhlf3MBmqnT66Wl qc9viOu5HLGUK3qHGzfJyEBBZ1mFNrUL5UrQHr1wapnGUTgXpFABMTNXE/cBgEL4Mg qEmHztUNYhliA== From: Chris Mason To: peterz@infradead.org, tglx@kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH RFC] __futex_pivot_hash() race Date: Mon, 17 Aug 2026 18:01:41 -0700 Message-ID: <20260818011036.1138213-1-mason@kernel.org> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This is really just AI questioning how we synchronize mmph->batches and mmph->hash. It looks real to me, and the repro with printks does fire, so hopefully I've got things right. The patch and description were also AI, meaning this is more bug report in patch form. Testing was only done against the one repro. (I may or may not have successfully switched over my git config to mason@kernel.org, lets see...)