From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755506Ab0J2Gf3 (ORCPT ); Fri, 29 Oct 2010 02:35:29 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:48748 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755058Ab0J2GfV (ORCPT ); Fri, 29 Oct 2010 02:35:21 -0400 Date: Fri, 29 Oct 2010 08:34:50 +0200 From: Ingo Molnar To: Jason Baron Cc: David Daney , rth@redhat.com, "H. Peter Anvin" , rostedt@goodmis.org, mathieu.desnoyers@polymtl.ca, tglx@linutronix.de, andi@firstfloor.org, roland@redhat.com, masami.hiramatsu.pt@hitachi.com, fweisbec@gmail.com, avi@redhat.com, davem@davemloft.net, vgoyal@redhat.com, sam@ravnborg.org, tony@bakeyournoodle.com, dsd@laptop.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/2] jump label: disable due to compiler bug Message-ID: <20101029063450.GE29463@elte.hu> References: <2d1b1d5d2b3930e1acb063cefffbcb2faf049854.1288212486.git.jbaron@redhat.com> <20101028141757.GA2875@redhat.com> <4CC9C724.3020004@caviumnetworks.com> <20101028201112.GA4792@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20101028201112.GA4792@redhat.com> User-Agent: Mutt/1.5.20 (2009-08-17) X-ELTE-SpamScore: -2.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.0 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.5 -2.0 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Jason Baron wrote: > Thus, I'm going to propose a patch, which makes jump label conditional on x86_64 > for now [...] No, we dont do 64-bit only features really. > [...] (adding -maccumulate-outgoing-args to x86 increases the text size, so I'm > not proposing adding the flag there). Please make jump labels configurable instead. (dependent on EMBEDDED) Also, could you please send the fix to me ASAP? We dont need confirmation and re-confirmation and testing, as this thing is crashing on me several times every single day ... I also know that 64-bit never crashed this way, nor did the 32-bit kernel with function tracer enabled - so -maccumulate-outgoing-args will likely fix it. Lets get the ball rolling so we can get it to Linus today ... Thanks, Ingo