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 BA091C32750 for ; Wed, 14 Aug 2019 02:03:58 +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 90EC620844 for ; Wed, 14 Aug 2019 02:03:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 90EC620844 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]:56582 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1hxidp-0002mM-Dw for qemu-devel@archiver.kernel.org; Tue, 13 Aug 2019 22:03:57 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50937) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1hxicQ-0001Eu-N4 for qemu-devel@nongnu.org; Tue, 13 Aug 2019 22:02:31 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hxicP-0005Fl-4r for qemu-devel@nongnu.org; Tue, 13 Aug 2019 22:02:29 -0400 Received: from mx1.redhat.com ([209.132.183.28]:55811) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hxicN-0005FG-It for qemu-devel@nongnu.org; Tue, 13 Aug 2019 22:02:28 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id C58E5315C027 for ; Wed, 14 Aug 2019 02:02:23 +0000 (UTC) Received: from localhost.localdomain (ovpn-117-78.ams2.redhat.com [10.36.117.78]) by smtp.corp.redhat.com (Postfix) with ESMTP id CF13B4AD; Wed, 14 Aug 2019 02:02:22 +0000 (UTC) From: Juan Quintela To: qemu-devel@nongnu.org Date: Wed, 14 Aug 2019 04:02:12 +0200 Message-Id: <20190814020218.1868-1-quintela@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.41]); Wed, 14 Aug 2019 02:02:23 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH 0/6] Fix multifd with big number of channels 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: "Dr. David Alan Gilbert" , Juan Quintela Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Hi When we have much more channels than cpus, we end having failures when writting to sockets. This series: - add some traces - fix some of the trouble with serialization of creating the threads/channels in proper order. - Ask for help with the last patch. See documentation there. Please, review. Juan Quintela (6): migration: Add traces for multifd terminate threads migration: Make global sem_sync semaphore by channel migration: Make sure that all multifd channels have been created migration: Make multifd threads wait until all have been created migration: add some multifd traces RFH: We lost "connect" events migration/ram.c | 60 +++++++++++++++++++++++++++++++++++------- migration/trace-events | 8 ++++++ 2 files changed, 59 insertions(+), 9 deletions(-) --=20 2.21.0