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 0DAC842EEB3 for ; Fri, 24 Jul 2026 11:22:51 +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=1784892172; cv=none; b=RE9OZk8m/v6K9qlER4QkHB9jCs1Yl3l2Ejlnhzr8eZsliGnI1xseb40je+FrjquqKpiOPsAhVk50TVuUfl7eCpFcL47EBsWDiWUCy9z4PQQNtY3FH2jRPjjwJpi5A37YANn09jORIVKCQ2ojmdkhlDDIPcKoJwPfWn/CQJkRX2o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784892172; c=relaxed/simple; bh=4ggn0cRWz5TQbffankiQ/K36b51BwmmPt5qrhZvrpB0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=NDVLDaVhwKym9/PUxF+m962RiAiAw5r6mkzHQOPovWnKv8pT7ImegJVA8EkgmdXILcRPi7v0MhQQvKf2nrmQ78yLEpotTX5M0MkmFWAlJAzmwY74Mxi/k6Bq6dDeH3Xr7PGogsTlOjJZutDWKwv1dYke52+L82mWNO5ttaskTw8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FsghI99s; 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="FsghI99s" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D21FB1F00A3E; Fri, 24 Jul 2026 11:22:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1784892170; bh=XXhBl9ATWh5fA7UYnQivRzspZXHDJjdE4XYaM0h8stA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=FsghI99ssUd27dEYgG0SowCfpeDbpHge/4YNPTZSD2oBGxDUG2f7pftMBUySf0r70 pPVBVH4Bv4kET9UHHLRMZyMg1Bj0ORn6kSjnh+hLFPh0CfwxmG4Zn1HDtBNLQdBSN/ 5EWxvdjsO1lb/hsESqAt9Bk7WtKLy6xRrPx5GdXGhLiASQo+5tTbQZBqvDcykV1/TQ 3m96RG7vuUK75wvSJyhi8D4QLPpiLmZUDJnAkfsNjWzJ48sfMNbpaSSBareJ5HkwxP fwkeWeWcqqKXeoGWqjCqC3YET99/qKDNF+vZYbzHz0m9wq5vWZvur30YmXtM+6RWSI dctbJdQ7Pb0+Q== From: Sasha Levin To: stable@vger.kernel.org Cc: Sasha Levin , kernel-team@android.com, Sebastian Andrzej Siewior , Moritz Klammler , Thomas Gleixner , Carlos Llamas , Thomas Gleixner , Ingo Molnar , Peter Zijlstra , Darren Hart , Davidlohr Bueso Subject: Re: [PATCH 5.15.y] futex: Prevent lockup in requeue-PI during signal/ timeout wakeup Date: Fri, 24 Jul 2026 07:22:35 -0400 Message-ID: <20260724105500.stable-0003@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260722204748.104836-1-cmllamas@google.com> References: <20260722204748.104836-1-cmllamas@google.com> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit > During wait-requeue-pi (task A) and requeue-PI (task B) the following > race can happen: [...] > requeue_state = Q_REQUEUE_PI_IGNORE Queued for 5.15, thanks. -- Thanks, Sasha