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_HELO_NONE,SPF_PASS 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 3F975C432C1 for ; Tue, 24 Sep 2019 18:26:18 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1BD822064A for ; Tue, 24 Sep 2019 18:26:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1BD822064A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:49824 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iCpVx-0000bR-3l for qemu-devel@archiver.kernel.org; Tue, 24 Sep 2019 14:26:17 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:48889) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iCpSD-0006P5-8E for qemu-devel@nongnu.org; Tue, 24 Sep 2019 14:22:26 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iCpSA-0004H1-3U for qemu-devel@nongnu.org; Tue, 24 Sep 2019 14:22:23 -0400 Received: from mx1.redhat.com ([209.132.183.28]:49932) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iCpS9-0004EE-2W for qemu-devel@nongnu.org; Tue, 24 Sep 2019 14:22:22 -0400 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id AC8032CD81A for ; Tue, 24 Sep 2019 18:22:12 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-117-142.ams2.redhat.com [10.36.117.142]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 14522600C8; Tue, 24 Sep 2019 18:22:09 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 686E2113864E; Tue, 24 Sep 2019 20:22:08 +0200 (CEST) From: Markus Armbruster To: Peter Xu Subject: Re: [Qemu-devel] [PATCH] migration: Fix postcopy bw for recovery References: <20190906130103.20961-1-peterx@redhat.com> Date: Tue, 24 Sep 2019 20:22:08 +0200 In-Reply-To: <20190906130103.20961-1-peterx@redhat.com> (Peter Xu's message of "Fri, 6 Sep 2019 21:01:03 +0800") Message-ID: <87muetblm7.fsf@dusky.pond.sub.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Tue, 24 Sep 2019 18:22:12 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Laurent Vivier , Xiaohui Li , Juan Quintela , qemu-devel@nongnu.org, "Dr . David Alan Gilbert" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" migration-tests hangs intermittently for me, and git bisect led me here. Test script: i=0; while true; do let i++; echo "= $i ="; MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))} QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/migration-test -p /x86_64/migration/postcopy/recovery -k; done