From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 42AA020330; Wed, 23 Jul 2025 00:26:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753230412; cv=none; b=QqnOZDktkWMnsGrCrn3PRGfFhvPaX4YfEeQVM1SLmVC0iPNg3DcuTjyP9yidq7ezMrGnAp7xdgA7533hqNXcCRjAWgXzk34xkD2RjEuuya9F8RIl/Pyz7Com+sT22K0IUDxapkS3JgZOiGwyQV3jgIKtD+i/yTAHajvKITAl72A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753230412; c=relaxed/simple; bh=HiG4PsMd0p3VKGxcSovcFMSoChgLqudbvvn83BAfWhQ=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=MTrxUb7DQNlGmMtNnj3gG4OwRgsgiQFTzbNIRl6w2fKi8PY6SCxL+RECSAksh2GJN6YtbahZCdnw6KZq0wCxLBf0vh85V6o2zq8MRGARXozhVxtw5oKCM3kPVict8tq/LLZW3B/COLurOqfR6V3BhkzRxa578zjGf0vke4tsG0c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Jgi1K7Vx; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Jgi1K7Vx" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 94D86C4CEEB; Wed, 23 Jul 2025 00:26:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1753230411; bh=HiG4PsMd0p3VKGxcSovcFMSoChgLqudbvvn83BAfWhQ=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=Jgi1K7VxGHYRB8OmlHrvq/87uWECj1POUqeMqd8PVUcB3khMRKhCFWOWP6wWNsMS/ fkRAkxCrjsn025ps/qVdrdDk/yY5e2/YNZ7RY9Vfb7Jlx6rDGVdF8mW/9yvUDKkMX1 nTOBC/xG308IAc2mh6ESxbH47Bee5rTqQZnZXxz0/GIbvOAa+pCchv5xNOLYK/88Xa zry0xjttMPVseQ1tUI/59QaGkPcioZbiyNDcMd2290JCNoUq5BO3xv/RDmfQ2m4dtc AVU/xO2z8T6qodyqYqis7rApTaMtwDrFJ4uXvmqGbN2sqG+DxnD8JYqDvVhHHEo4ca t81ezXnIc0jHQ== Date: Wed, 23 Jul 2025 09:26:48 +0900 From: Masami Hiramatsu (Google) To: Steven Rostedt Cc: Mathieu Desnoyers , linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org Subject: Re: [PATCH v3 2/7] tracing: probe: Allocate traceprobe_parse_context from heap Message-Id: <20250723092648.3fc87e0fff6abb04a7234a15@kernel.org> In-Reply-To: <20250722183813.74dd1386@gandalf.local.home> References: <175322168606.44400.9155291012158349647.stgit@devnote2> <175322170601.44400.16839124706616607558.stgit@devnote2> <20250722183813.74dd1386@gandalf.local.home> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Tue, 22 Jul 2025 18:38:13 -0400 Steven Rostedt wrote: > On Wed, 23 Jul 2025 07:01:46 +0900 > "Masami Hiramatsu (Google)" wrote: > > > From: Masami Hiramatsu (Google) > > > > Instead of allocating traceprobe_parse_context on stack, allocate it > > dynamically from heap (slab). > > > > This change is likely intended to prevent potential stack overflow > > issues, which can be a concern in the kernel environment where stack > > space is limited. > > > > Reported-by: kernel test robot > > Closes: https://lore.kernel.org/oe-kbuild-all/202506240416.nZIhDXoO-lkp@intel.com/ > > Signed-off-by: Masami Hiramatsu (Google) > > Reviewed-by: Steven Rostedt (Google) > Thanks! > -- Steve -- Masami Hiramatsu (Google)