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=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_2 autolearn=no 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 77AE2C433E0 for ; Wed, 10 Feb 2021 16:24:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 48A8F64E6B for ; Wed, 10 Feb 2021 16:24:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232063AbhBJQYE convert rfc822-to-8bit (ORCPT ); Wed, 10 Feb 2021 11:24:04 -0500 Received: from mail.kernel.org ([198.145.29.99]:57052 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232248AbhBJQXz (ORCPT ); Wed, 10 Feb 2021 11:23:55 -0500 Received: from gandalf.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (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 BE0CB64E6B; Wed, 10 Feb 2021 16:23:13 +0000 (UTC) Date: Wed, 10 Feb 2021 11:23:12 -0500 From: Steven Rostedt To: "Yordan Karadzhov (VMware)" Cc: Dario Faggioli , Linux Trace Devel , Tzvetomir Stoyanov Subject: Re: Kernelshark v2 all-black plots area Message-ID: <20210210112312.40d06a67@gandalf.local.home> In-Reply-To: <60fd40d8-23ab-6518-4e8b-6d66bbd53f5a@gmail.com> References: <89dbef38a1050c31390ce263d51fff1f72a42164.camel@suse.com> <38b5ea14-cea2-1268-13ef-539fe421e442@gmail.com> <60fd40d8-23ab-6518-4e8b-6d66bbd53f5a@gmail.com> X-Mailer: Claws Mail 3.17.8 (GTK+ 2.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Precedence: bulk List-ID: X-Mailing-List: linux-trace-devel@vger.kernel.org On Wed, 10 Feb 2021 17:47:16 +0200 "Yordan Karadzhov (VMware)" wrote: > Hi Dario, > > On 10.02.21 г. 16:51 ч., Dario Faggioli wrote: > > And this is how the GUI looks: > > > > http://xenbits.xen.org/people/dariof/ks2-debug/kernelshark-v2-host.png > > > > Then, I append the trace-(null).dat file (the guest trace). I do see > > this on the terminal: > > I see what you mean. In this case the host and the guest are not > synchronized at all. I guess something went wrong during the recording. > Also the fact that the name of the guest VM is "(null)" looks very > suspicious. I guess this is not the real name of the VM you are using? > > Steven, do you have any idea what can cause such problem? There's currently a lot of bugs that I'm trying to wring out. Yes, I see the same thing, but haven't had the time to investigate it further. I have to push the few fixes I have in queue out after some tests, and then I'll look into this. My main concern was that the "listen" functionality broke, which is a regression! -- Steve