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 7AF9C49483F; Thu, 13 Aug 2026 16:16:10 +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=1786637773; cv=none; b=RSoESLVEs5ZvCm3CSD9MYHqE5G4eoZQkXI73uFlAR0skL+0IQtgH40X9iCeZqepWcleH8hps/KwU6tYiuzRRMdSMihN9OVaIxPH55ywuAwSCAcCSCeYhzkV++DyjkpHvrO8seK1RHu01AUv7ya1RQTfEL53+uUaMfxbDrbTUhp4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786637773; c=relaxed/simple; bh=pqqmZZ6deRh+BDfJTUV3UZWzWTfjHadmOgnzEcJK+SQ=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type; b=keAbYd+AEQxZ185wXjlTh8e7DyyqATb9kwqMTUgQXnG3Do6Cq1V3BskOoDSs2n2r2atcsJc16aDUAYChg2m6OJrDg3h5vaqnb34xVH8jWXnjGEPPybwULSk0lAFxNkjAB7ofJCI5qBDMSFzb6nBmnyZdes/rGOB0nQX7IEvYkvU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=JZ2KfbAd; 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="JZ2KfbAd" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0F3801F000E9; Thu, 13 Aug 2026 16:16:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786637767; bh=KknxDTLPmSc/DwBYymorFrffLss6qj1EZdZVl4Oq7l4=; h=From:To:Cc:Subject:Date; b=JZ2KfbAd5MyujUDRZsbCTSNudXpb1vvvI9jlKVfpp9xnoRMyzLxnO0M5s451FlTsC G4G9QMW07ljyfUo9J74SwhOY9+uYk+bmXiZLwf4Y9+zkKEmhYsnaEQbrh3ZnlR/IZn ++Yvybg8b4PK8pKv9NQEfMdT3axBzSnaWR8KVhw4yVhlkIpjgkChDAlqvZu8MD/RUU RmHUGdH1yt4b0Z6dkStuCMZ/+azWNPfw+LgH/4OP0+r6rUmwvbdR/qDWLULjtKbNVu 4iwq81Z+4HxZf15/dQQ1m/2/c03eeLbiOmLHdEPWdWB+zX/NK8/X29UK6pyjT80eSf R7Ayp5/HABX8w== From: "Masami Hiramatsu (Google)" To: Steven Rostedt , Masami Hiramatsu , Vincent Donnefort Cc: Mathieu Desnoyers , linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, kernel-team@android.com Subject: [PATCH 0/1] ring-buffer: Fix sub-buffer order updates and free_page leaks Date: Fri, 14 Aug 2026 01:16:03 +0900 Message-ID: <178663776361.475864.7685868697103378735.stgit@devnote2> X-Mailer: git-send-email 2.43.0 User-Agent: StGit/0.19 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Hi Vincent, Here is my patch to fix the race and free_page problem. Let's see what Sashiko says for this. Thank you, --- base-commit: 3d6d817622b0a9721e3cc404df3469171582be13 Masami Hiramatsu (Google) (1): ring-buffer: Fix race between ring_buffer_subbuf_order_set() and readers kernel/trace/ring_buffer.c | 35 +++++++++++++++++++++++++++++------ 1 file changed, 29 insertions(+), 6 deletions(-) -- Masami Hiramatsu (Google)