From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751240AbeEDK0L (ORCPT ); Fri, 4 May 2018 06:26:11 -0400 Received: from mail-wm0-f46.google.com ([74.125.82.46]:54307 "EHLO mail-wm0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750733AbeEDK0J (ORCPT ); Fri, 4 May 2018 06:26:09 -0400 X-Google-Smtp-Source: AB8JxZq4DXWDCmu9PMzTA+5fKTihwLLVJh1gGkbIoz93Uv3kHqbr8Y/kqI/mhcyeEbBl9zv/L6AWIA== Date: Fri, 4 May 2018 12:26:01 +0200 From: Robert Richter To: Matt Redfearn Cc: James Hogan , Ralf Baechle , linux-mips@linux-mips.org, Huacai Chen , linux-kernel@vger.kernel.org, Jiaxun Yang , Krzysztof Kozlowski , oprofile-list@lists.sf.net Subject: Re: [RFC PATCH] MIPS: Oprofile: Drop support Message-ID: <20180504102600.GD4493@rric.localdomain> References: <1524574554-7451-1-git-send-email-matt.redfearn@mips.com> <20180424130511.GB28813@saruman> <5e464a40-4e4d-dde4-b5b5-ceb637dc5f38@mips.com> <20180504093002.GC4493@rric.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04.05.18 10:54:32, Matt Redfearn wrote: > perf is available for MIPS and supports many more CPU types than oprofile. > oprofile userspace seemingly has been broken since 1.0.0 - removing oprofile > support from the MIPS kernel would not break it more thatn it already is, What do you mean with "oprofile is broken"? It looks like you modified Kconfig to enable oprofile and perf in parallel, which is not intended to work. Have you tried a kernel with oprofile disabled and perf enabled? As said, oprofile version 0.9.x is still available for cpus that do not support perf. What is the breakage? Thanks, -Robert