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 A77F4155C87; Fri, 7 Feb 2025 02:15:04 +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=1738894504; cv=none; b=D5dLj8x876onAaLpHYZxTMN6+5g4V/JAW5TcvkGY1TX6TpqJ9bJ9gTgbNlyyukmoH1Wu6w7YI8NWE2tMU/xGAeYVflyIOK3gKDuuwX04zjsP1KrPQ/z2DUkJdVfoa/rnEOllbGn71yG2QMFWRC/3htrA3aP2eooIYtWF/1RaDRs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738894504; c=relaxed/simple; bh=JzTNkq7+WvBJJXykzTj+oWnUhBXmrzdUTj7se1fJUkU=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=f2JfqQj9JoBRRBUV+dJHjGVFuvFHcGvlxdAYU51a1BZSfzPpMh8lj98IG22EAto8T9cWt96vLBlMF1iCI4h/oCabfndEIRC93XWCu89Y/oaWUIdvav2N4QBL6pD0IwBtMWubMPgfLTLUQJkhS6JuGXHIaWVIybr8A/cp4xiGCdY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FIoq/62F; 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="FIoq/62F" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C62DBC4CEE6; Fri, 7 Feb 2025 02:15:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1738894504; bh=JzTNkq7+WvBJJXykzTj+oWnUhBXmrzdUTj7se1fJUkU=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=FIoq/62Ft6f5aRRMmCnhqM7s6sN7EtCEHQlc1h67XNROZYsjd0/coKfI4PM8NjKvR V497s3D0wPu7nwnpRbLeOAEjX+xM+dCwyxed3wSEhkNYnB1A2JuEWPYLZNZj0k/FGk kpzKQPZ7ujUGW8HKu5SVvw4SfDVQVyzua9CZQDAFwAhjqOqYh1BtV8s62QM5d+TWm+ vAL2RNiqLuOOY70I6fagRkZPV5tV752phVDDkjm+ACk/ItXZJyPYgJ1Q6wcG6zwEGI 2a7H57bYb0KwZMNO7rXMwwbQybWNhazNFGSK5YL5UJ2PgogvLujqMuHSPcgYsmLojl bMKK02/Lm25hA== Date: Fri, 7 Feb 2025 11:15:00 +0900 From: Masami Hiramatsu (Google) To: Steven Rostedt Cc: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, Mark Rutland , Mathieu Desnoyers , Andrew Morton Subject: Re: [PATCH 4/8] tracing: Have persistent trace instances save KASLR offset Message-Id: <20250207111500.294309a7d3ed7253dac2f210@kernel.org> In-Reply-To: <20250206200316.1483aa59@gandalf.local.home> References: <20250205225031.799739376@goodmis.org> <20250205225103.596907199@goodmis.org> <20250206142232.5a10545649210f3b3ba172c2@kernel.org> <20250206102425.2d1f71ad@gandalf.local.home> <20250207095844.c2d761f3a3588f705e5c5832@kernel.org> <20250206200316.1483aa59@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 Thu, 6 Feb 2025 20:03:16 -0500 Steven Rostedt wrote: > On Fri, 7 Feb 2025 09:58:44 +0900 > Masami Hiramatsu (Google) wrote: > > > > Which would make sure that the scratch size contains enough memory to hold > > > 128 modules. > > > > Yeah, this idea looks godd to me. BTW, the scratch size will be aligned to > > the subbuffer size (or page size?) > > I don't think it needs to be. I think it just needs to be aligned to word > size. Ah, OK. The first cpu_meta data is not need to be aligned. Thank you, > > -- Steve -- Masami Hiramatsu (Google)