From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 23F85ECDE42 for ; Thu, 18 Oct 2018 02:33:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CCBC521470 for ; Thu, 18 Oct 2018 02:33:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CCBC521470 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=goodmis.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727351AbeJRKcS (ORCPT ); Thu, 18 Oct 2018 06:32:18 -0400 Received: from mail.kernel.org ([198.145.29.99]:33098 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727247AbeJRKcR (ORCPT ); Thu, 18 Oct 2018 06:32:17 -0400 Received: from vmware.local.home (cpe-66-24-56-78.stny.res.rr.com [66.24.56.78]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6B50121470; Thu, 18 Oct 2018 02:33:36 +0000 (UTC) Date: Wed, 17 Oct 2018 22:33:34 -0400 From: Steven Rostedt To: Sai Prakash Ranjan Cc: Stephen Boyd , Bjorn Andersson , Andy Gross , David Brown , Jiri Slaby , Kees Cook , "Joel Fernandes (Google)" , Geliang Tang , Greg Kroah-Hartman , Pramod Gurav , linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org, linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org, Rajendra Nayak , Vivek Gautam , Sibi Sankar Subject: Re: Crash in msm serial on dragonboard with ftrace bootargs Message-ID: <20181017223334.29ca2837@vmware.local.home> In-Reply-To: References: <1cae8f10-55f5-20ce-9105-30af6f88bd6e@codeaurora.org> <20181016112928.4b52afb5@gandalf.local.home> <8c2fb318-813d-81f1-1e2f-cdbc68353077@codeaurora.org> <20181016125721.236ada82@gandalf.local.home> <20181016134803.1b9260c1@gandalf.local.home> <472db11e-49a6-a1ee-e298-791ee1bbb10b@codeaurora.org> <20181016141610.639b9000@gandalf.local.home> <20181016144123.24c47b38@gandalf.local.home> <7781815e-cba2-9e36-db6d-268298747876@codeaurora.org> <20181016150328.3450d718@gandalf.local.home> X-Mailer: Claws Mail 3.15.1 (GTK+ 2.24.32; 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 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 17 Oct 2018 00:36:05 +0530 Sai Prakash Ranjan wrote: > On 10/17/2018 12:33 AM, Steven Rostedt wrote: > > On Wed, 17 Oct 2018 00:31:03 +0530 > > Sai Prakash Ranjan wrote: > > > >> Haa seems like you are right! With "ftrace=function > >> ftrace_filter=msm_read" , I can trigger the crash, but > >> sadly "ftrace_notrace=msm_read" also crashes. > > > > So there's more than one problem area. > > > > What about ftrace_notrace=m* > > > > ? > > > > That too crashes. > So something else is causing an issue besides just msm_read. Can you do an objdump -dr of the entire vmlinux binary and gzip it and post it somewhere. Not sure if it would be too big to email. You could try sending it to me privately. I'd like to see the binary that you are using. -- Steve