From patchwork Fri Feb 21 06:36:10 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Li Zhijian X-Patchwork-Id: 13984878 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 25022C021B4 for ; Fri, 21 Feb 2025 06:36:31 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tlMd6-0001Tk-B4; Fri, 21 Feb 2025 01:35:20 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tlMd3-0001R8-9h for qemu-devel@nongnu.org; Fri, 21 Feb 2025 01:35:17 -0500 Received: from esa5.hc1455-7.c3s2.iphmx.com ([68.232.139.130]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tlMd1-0003k0-9e for qemu-devel@nongnu.org; Fri, 21 Feb 2025 01:35:17 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=fujitsu.com; i=@fujitsu.com; q=dns/txt; s=fj2; t=1740119715; x=1771655715; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=EeqxOxnfJGp1OeklxYaU7QutfMay++/S+GaNNIxlkvY=; b=oVdB4Cd7/b0xRyAp3/fbwncNf5aS3a4O6l24C6b4X7quOBnr/9q6MwvT Ml59Gt0LcMSyeIDYoln/Nq/aHaq1yR+wnyBwG9dO93xqJ8hAdCJw4odmf yc1aHc40U6C1foQBhuQMBGZtS6XPXwpXT7wUbSafC/x1eficEprLUIqVJ 90379Jw3licM+0JizNZHvbSqdTWEfrvHUoUkMTqmNGxHmM7KcB2MbrAgm O4sa292abSOifKBg7EuSgbCHuIuaTh8h00B9wBOa6nsuPJ/k1DxHCh2Hm VGc9P0T6vDwUTx9UB24AEwtcxyqJSpPHv7/zc0eHmSvVo3kY5wq60Z4Bm A==; X-CSE-ConnectionGUID: nOdJyc5MQlSkUphRsTGdIg== X-CSE-MsgGUID: 0YLmBaTuSCCHrfzFOtNqMA== X-IronPort-AV: E=McAfee;i="6700,10204,11351"; a="189940651" X-IronPort-AV: E=Sophos;i="6.13,303,1732546800"; d="scan'208";a="189940651" Received: from unknown (HELO oym-r4.gw.nic.fujitsu.com) ([210.162.30.92]) by esa5.hc1455-7.c3s2.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Feb 2025 15:35:09 +0900 Received: from oym-m3.gw.nic.fujitsu.com (oym-nat-oym-m3.gw.nic.fujitsu.com [192.168.87.60]) by oym-r4.gw.nic.fujitsu.com (Postfix) with ESMTP id 008DC7C24E for ; Fri, 21 Feb 2025 15:35:07 +0900 (JST) Received: from edo.cn.fujitsu.com (edo.cn.fujitsu.com [10.167.33.5]) by oym-m3.gw.nic.fujitsu.com (Postfix) with ESMTP id BC204D9A7E for ; Fri, 21 Feb 2025 15:35:06 +0900 (JST) Received: from iaas-rdma.. (unknown [10.167.135.44]) by edo.cn.fujitsu.com (Postfix) with ESMTP id 20C321A000B; Fri, 21 Feb 2025 14:35:06 +0800 (CST) To: qemu-devel@nongnu.org Cc: Peter Xu , Fabiano Rosas , Laurent Vivier , Paolo Bonzini , Li Zhijian Subject: [PATCH v2 6/8] migraion: disable RDMA + postcopy-ram Date: Fri, 21 Feb 2025 14:36:10 +0800 Message-ID: <20250221063612.695909-7-lizhijian@fujitsu.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20250221063612.695909-1-lizhijian@fujitsu.com> References: <20250221063612.695909-1-lizhijian@fujitsu.com> MIME-Version: 1.0 Received-SPF: pass client-ip=68.232.139.130; envelope-from=lizhijian@fujitsu.com; helo=esa5.hc1455-7.c3s2.iphmx.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-to: Li Zhijian X-Patchwork-Original-From: Li Zhijian via From: Li Zhijian Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org It's believed that RDMA + postcopy-ram has been broken for a while. Rather than spending time re-enabling it, let's simply disable it as a trade-off. Signed-off-by: Li Zhijian --- migration/migration.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/migration/migration.c b/migration/migration.c index 2eacae25e0e..d414a4b1379 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -251,6 +251,10 @@ migration_capabilities_and_transport_compatible(MigrationAddress *addr, error_setg(errp, "RDMA and multifd can't be used together"); return false; } + if (migrate_postcopy_ram()) { + error_setg(errp, "RDMA and postcopy-ram can't be used together"); + return false; + } } return true;