From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751197AbaK0PGX (ORCPT ); Thu, 27 Nov 2014 10:06:23 -0500 Received: from smtprelay0240.hostedemail.com ([216.40.44.240]:60799 "EHLO smtprelay.hostedemail.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751151AbaK0PGV (ORCPT ); Thu, 27 Nov 2014 10:06:21 -0500 X-Greylist: delayed 472 seconds by postgrey-1.27 at vger.kernel.org; Thu, 27 Nov 2014 10:06:21 EST X-Session-Marker: 6E657665747340676F6F646D69732E6F7267 X-Spam-Summary: 2,0,0,,d41d8cd98f00b204,rostedt@goodmis.org,:::::::::::::::::,RULES_HIT:41:355:379:541:599:800:960:973:988:989:1260:1277:1311:1313:1314:1345:1359:1437:1515:1516:1518:1534:1541:1593:1594:1711:1730:1747:1777:1792:2393:2553:2559:2562:3138:3139:3140:3141:3142:3353:3622:3865:3866:3868:3870:3871:3872:3873:3874:4250:4321:5007:6261:6690:7875:7903:10004:10400:10450:10455:10848:10967:11232:11658:11914:12517:12519:12663:12740:13069:13311:13357:14096:14097:19904:19999:21060:21080,0,RBL:none,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fn,MSBL:0,DNSBL:none,Custom_rules:0:0:0 X-HE-Tag: error74_2cb1228cfe105 X-Filterd-Recvd-Size: 2559 Date: Thu, 27 Nov 2014 09:58:25 -0500 From: Steven Rostedt To: Jean-Jacques Hiblot Cc: Russell King - ARM Linux , Stefano Stabellini , nsekhar@ti.com, Linux Kernel Mailing List , mingo@redhat.com, Christoffer Dall , jslaby@suse.cz, "linux-arm-kernel@lists.infradead.org" Subject: Re: [PATCH] arm: ftrace: Adds support for ftrace operations Message-ID: <20141127095825.37f57197@gandalf.local.home> In-Reply-To: References: <1415372352-15664-1-git-send-email-jjhiblot@traphandler.com> <20141107115225.72bc6cbf@gandalf.local.home> <545CFAF4.8030104@traphandler.com> <20141125182038.04497ec0@gandalf.local.home> X-Mailer: Claws Mail 3.11.1 (GTK+ 2.24.25; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 27 Nov 2014 11:23:45 +0100 Jean-Jacques Hiblot wrote: > 2014-11-26 0:20 GMT+01:00 Steven Rostedt : > > On Mon, 24 Nov 2014 10:59:24 +0100 > > Jean-Jacques Hiblot wrote: > > > >> Hi Steve, > >> did you get a chance of running your tests suite on real hardware with > >> this patch? I'd be really interested in the results. > > > > Yes I finally got it working on my beaglebone white. It passed all the > > tests that passed without it. Although I'm not sure this patch itself > > was tested as I didn't have kprobes which might use it. > > > Thanks for testing it. At least it doesn't cause regression. > What do you mean by not having krpobes which might use it ? Are you > thinking of the kprobe optimization based on ftrace ? > Yep. My tests use that. But as ARM doesn't have an mfentry where functions probed by kprobes at the start are optimized with ftrace, my tests wont test it. I also didn't have kprobes enabled on this board. Is it fully supported in ARM, and does kprobes use it there too? -- Steve