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 7B7A315A865; Mon, 19 Aug 2024 23:34:36 +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=1724110476; cv=none; b=GTuFQ5EIxeeKguj+R8VHIXi12Y4WcCQcMK7dfPb/dxSlpC3MLK5zHOEKavIo54zSuRylbIMQkFwHbvCq0NDdr3fKnyA+orXaV04xgAOtx8ndC+lOtlfGbPe2WY2X7LdMnIYRmhcIgrQ2e5zzrvwnya4lxtMhY7brXJoNogg6W+A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724110476; c=relaxed/simple; bh=EskfZYxtcQRI39nS+fX7B611q9gHlN6kBxvW78AdaLg=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=EYc+RAIn5bnpK8bOLiyZYtykjy3UIuB+YQ0hVWM20I6A9JDVLdMw/B8uoqM5SNPEEucSscs1KgxV5h+NWuKt1JNO3f22+x/l3PdxBMl0ERHzAwZduLIJkAot8r6Zb9b9I6QklqV7ZKb66A1kkxoHJJdGq8X6TRjW6Km/AIknQCY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=NZ/TkekZ; 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="NZ/TkekZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CCD45C4AF0E; Mon, 19 Aug 2024 23:34:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1724110476; bh=EskfZYxtcQRI39nS+fX7B611q9gHlN6kBxvW78AdaLg=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=NZ/TkekZ7xLBFqExd33rckwX0fOQMBv1NDzHnldXfBNeZc2Gn1mXUH/RnJnFJblrg XxLxd6K9AMb/tBzaXuDRqqErkzQQtyFA5enThJMnRClf2f6X9FBIfDMsnzl4a71X6a FlxN4kXIq+/qqA4kblxsLeMTVOYtbCWbAv95IcZqHzeHobhLwdJYWNycun87BlSDdI uZF3hgZ72VLus6v1ISYCpBS26KLQKgiMhji5sopQTmOHq4F9HjYpkSvBo+7ufbRPVA obXOXCvxTfSiwQ+20bTJ7roeVNM/M/9UDidtd6iCkPZvQsYKuKqIaMUcug8Y7oFezE zLzNHE3UWaPGQ== Date: Tue, 20 Aug 2024 08:34:31 +0900 From: Masami Hiramatsu (Google) To: Steven Rostedt Cc: Linux Trace Kernel , linux-kernel@vger.kernel.org Subject: Re: [BUG] tracing: dynamic ftrace selftest detected failures Message-Id: <20240820083431.0dd9ff59b894d2174b1cd512@kernel.org> In-Reply-To: <20240819120244.5657eb2f@gandalf.local.home> References: <20240819171152.12f05e0ae5c9472004d1b00a@kernel.org> <20240819112902.11451fe8@gandalf.local.home> <20240820005649.dd019cfa70a8955d91cf85a0@kernel.org> <20240819120244.5657eb2f@gandalf.local.home> X-Mailer: Sylpheed 3.7.0 (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 Mon, 19 Aug 2024 12:02:44 -0400 Steven Rostedt wrote: > On Tue, 20 Aug 2024 00:56:49 +0900 > Masami Hiramatsu (Google) wrote: > > > > > > > > We may need to add "noinline" or something to make sure those functions > > > don't get inlined for LTO. > > > > Yeah, we need such option at least for function call test. > > Could you add the noinline, and if it fixes the issue send a patch? OK, BTW, I got warnings from kmemleak when I disabled LTO in the selftest. Let me fix it too. Thanks, > > Thanks, > > -- Steve > -- Masami Hiramatsu (Google)