From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1C305C48BDF for ; Fri, 18 Jun 2021 16:15:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EBD0061139 for ; Fri, 18 Jun 2021 16:15:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234021AbhFRQRj (ORCPT ); Fri, 18 Jun 2021 12:17:39 -0400 Received: from mail.kernel.org ([198.145.29.99]:42604 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235866AbhFRQR3 (ORCPT ); Fri, 18 Jun 2021 12:17:29 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 8F4E561164; Fri, 18 Jun 2021 16:15:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1624032919; bh=8qEH77Y0Qf30/JIPXOCXqB6LDvWgELe4XZuXXAGh9wE=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=Ae15oKi+Z8TrdXO23sUZFDCesgwuN+90p290VWV4DFd3RgEKqrHJ4Me1LDyo+7NHv IIaPhx3CCFWNWmrjEehfCXCcIvwIFNgOH+C4KmYckEgWhwFcmABImVTU13Auba+UxX NT0Cxh/K62pK54ctkCMyLEO2sD0IaGo+D0+Wa+NKhpUFNN2Rtvr2E+D3DzCB1/Xc3R 9wfR/dXdtfZqEEJ6qIWzHJ4YLG63+Wj8IAt1bjPoCOHaxqEzwpUc++aZ+hZjhh5U/r OSf0wYiCTP1qk0l6jxzi/r0z/7vUGA6rUNAaN36rJntTMtHahJX1qwJONaPJSeYJJs VclI7DLoci0zA== Date: Sat, 19 Jun 2021 01:15:16 +0900 From: Masami Hiramatsu To: "Naveen N. Rao" Cc: Steven Rostedt , "Aneesh Kumar K.V" , linux-kernel@vger.kernel.org, Masami Hiramatsu , Peter Zijlstra Subject: Re: [PATCH] kprobes: Print an error if probe is rejected Message-Id: <20210619011516.dadbd24e27996bae62fd288f@kernel.org> In-Reply-To: <1623684632.0k2j6ky7k3.naveen@linux.ibm.com> References: <20210610085617.1590138-1-naveen.n.rao@linux.vnet.ibm.com> <20210610191643.d24e7d56d102567070fe8386@kernel.org> <1623419180.o4u5xf72jm.naveen@linux.ibm.com> <20210611154021.008537b0@gandalf.local.home> <1623684632.0k2j6ky7k3.naveen@linux.ibm.com> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.32; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Naveen, On Mon, 14 Jun 2021 21:00:52 +0530 "Naveen N. Rao" wrote: > Steven Rostedt wrote: > > On Fri, 11 Jun 2021 19:25:38 +0530 > > "Naveen N. Rao" wrote: > > > >> We also have perf_event_open() as an interface to add probes, and I > >> don't think it would be helpful to require all tools to utilize the > >> error log from tracefs for this purpose. > > > > The there should be a perf interface to read the errors. I agree with > > Masami. Let's not have console logs for probe errors. > > Ok, understood. Will you update this? Thank you, > > > Thanks, > Naveen > -- Masami Hiramatsu