From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932762Ab2FAN5j (ORCPT ); Fri, 1 Jun 2012 09:57:39 -0400 Received: from e33.co.us.ibm.com ([32.97.110.151]:48981 "EHLO e33.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932595Ab2FAN5i (ORCPT ); Fri, 1 Jun 2012 09:57:38 -0400 Date: Fri, 1 Jun 2012 19:26:28 +0530 From: Pradeep Kumar Surisetty To: LKML Cc: ryanh@linux.vnet.ibm.com Subject: perf kvm segfaults while reporting events Message-ID: <20120601135627.GA3004@linux.vnet.ibm.com> Reply-To: Pradeep Kumar Surisetty MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Content-Scanned: Fidelis XPS MAILER x-cbid: 12060113-2398-0000-0000-0000071E115F Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello perf kvm generats segfaults while reporting events. host & guest: 3.4.0-rc4 1) Copied kallsyms, modules from guest to host. 2) recorded events on host and guest & report it using below commands. [root@host]# ./perf kvm --host --guest --guestkallsyms=/tmp/guest-kallsyms --guestmodules=/tmp/guest-modules record -a -o perf.data ^C[ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.381 MB perf.data (~16659 samples) ] [root@host]# ./perf kvm --host --guest --guestkallsyms=/tmp/guest-kallsyms --guestmodules=/tmp/guest-modules report -i perf.data --force perf: Segmentation fault [root@host]# --Pradeep