From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1946003AbcBRMh4 (ORCPT ); Thu, 18 Feb 2016 07:37:56 -0500 Received: from casper.infradead.org ([85.118.1.10]:54084 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1422694AbcBRMhy (ORCPT ); Thu, 18 Feb 2016 07:37:54 -0500 Date: Thu, 18 Feb 2016 13:37:47 +0100 From: Peter Zijlstra To: Sasha Levin Cc: mingo@kernel.org, alexander.shishkin@linux.intel.com, eranian@google.com, linux-kernel@vger.kernel.org, vince@deater.net, dvyukov@google.com, andi@firstfloor.org, jolsa@redhat.com Subject: Re: [RFC][PATCH 12/12] perf: Collapse and fix event_function_call() users Message-ID: <20160218123747.GP6375@twins.programming.kicks-ass.net> References: <20160111162458.427203780@infradead.org> <20160111163229.411314288@infradead.org> <56C4F673.40600@oracle.com> <20160218074620.GP6357@twins.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160218074620.GP6357@twins.programming.kicks-ass.net> User-Agent: Mutt/1.5.21 (2012-12-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Feb 18, 2016 at 08:46:20AM +0100, Peter Zijlstra wrote: > On Wed, Feb 17, 2016 at 05:38:43PM -0500, Sasha Levin wrote: > > Hey Peter, > > > > I seem to be hitting a warning added by this patch: > > > > [ 258.890172] WARNING: CPU: 5 PID: 14801 at kernel/events/core.c:226 event_function+0x3a7/0x550() > > Yes, I've been chasing this one for the past few days. > > I have a bunch of traces that make absolutely no sense what so ever, and > a patch that appears to make it go away, but I'm not confident. > > I'll cleanup and share what I have. *sigh*, all cleaned up and debug cruft removed it hits again :/ Back to poking at it I suppose...