From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755285AbaEINMr (ORCPT ); Fri, 9 May 2014 09:12:47 -0400 Received: from www.linutronix.de ([62.245.132.108]:35786 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751036AbaEINMq (ORCPT ); Fri, 9 May 2014 09:12:46 -0400 Date: Fri, 9 May 2014 15:12:44 +0200 From: Sebastian Andrzej Siewior To: minyard@acm.org Cc: linux-rt-users@vger.kernel.org, linux-kernel@vger.kernel.org, Corey Minyard Subject: Re: [PATCH] ftrace: Simplify ring buffer resizing, make work with RT Message-ID: <20140509131244.GF29014@linutronix.de> References: <1399579402-27034-1-git-send-email-minyard@acm.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <1399579402-27034-1-git-send-email-minyard@acm.org> X-Key-Id: 97C4700B X-Key-Fingerprint: 09E2 D1F3 9A3A FF13 C3D3 961C 0688 1C1E 97C4 700B User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * minyard@acm.org | 2014-05-08 15:03:22 [-0500]: >This isn't well tested, but fixes an obvious PREEMPT_RT problem and seems >like a good simplification. You can see the PREEMPT_RT bug if you enable >ftrace and all the self tests; it will fail running selftests when it tries >to resize the buffers. I posted http://marc.info/?l=linux-rt-users&m=139962823022896&w=2 before I noticed this one. You seem not to touch the second hunk. Sebastian