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 Received: from lists1p.gnu.org (lists1p.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 13B77FF8868 for ; Mon, 27 Apr 2026 14:34:28 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1wHN1f-0006FS-KY; Mon, 27 Apr 2026 10:33:31 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wHN1e-0006F7-L9; Mon, 27 Apr 2026 10:33:30 -0400 Received: from mgamail.intel.com ([192.198.163.19]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wHN1b-0002wt-PK; Mon, 27 Apr 2026 10:33:30 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1777300407; x=1808836407; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=WTujXG87fbk3fXF5SF2GO2sYAihOlR9qY20zSoClWJc=; b=Bqf32RVgNdW5G4Z7cRZOvL3b/rGEsNWhd1Dz9Nlpos/3alfA/3Ihv4UK qyX+rXkAzUFR4Nw9LGgkdObeelYYmZ7az02MgmFhy08AOwwFo+UO5qqvX q6tStc/OJrLh8dcdlhbQvMbedpvDjKOPIrDuQoBj+h9oTake9CC5sz/QO vpJ/mZnvk2Txq22xpxHO+SjK11cOQb1vlg6eeG9XsxBssv5MqjgqRvpgL NOKf4jrFYP2jldl+piFJJgQbMCgf+z+ygBhBoVFxyOMhOrfRBLXbvyJJ/ j9SCPZ1vsKEqPAgWI2DDHzncEx1Po4NSzrs0675BfTRoV4Kg5ljvnQPZj g==; X-CSE-ConnectionGUID: lzGUMYC0RUm/7JKbN2DnFg== X-CSE-MsgGUID: 9iuZZ4+UTHuC5VrhKj1jlQ== X-IronPort-AV: E=McAfee;i="6800,10657,11769"; a="77216796" X-IronPort-AV: E=Sophos;i="6.23,202,1770624000"; d="scan'208";a="77216796" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by fmvoesa113.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Apr 2026 07:33:24 -0700 X-CSE-ConnectionGUID: xIBT8zIsTyyAos9xmmia1A== X-CSE-MsgGUID: dhoZDE3gQ1aXQwgHl8uSfA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,202,1770624000"; d="scan'208";a="229321563" Received: from junjie-optiplex-micro-plus-7010.bj.intel.com ([10.238.152.98]) by fmviesa010-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Apr 2026 07:33:22 -0700 From: Junjie Cao To: peterx@redhat.com, mjt@tls.msk.ru Cc: junjie.cao@intel.com, qemu-devel@nongnu.org, farosas@suse.de, qemu-stable@nongnu.org Subject: Re: [PATCH 0/3] migration: switch remaining positioned I/O to _all helpers Date: Tue, 28 Apr 2026 06:36:06 +0800 Message-ID: <20260427223606.1433629-1-junjie.cao@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=192.198.163.19; envelope-from=junjie.cao@intel.com; helo=mgamail.intel.com X-Spam_score_int: -24 X-Spam_score: -2.5 X-Spam_bar: -- X-Spam_report: (-2.5 / 5.0 requ) BAYES_00=-1.9, DATE_IN_FUTURE_06_12=1.947, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=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: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Hi Peter and Michael, No, I don't have a real reproducer. Triggering partial I/O on regular files in practice requires unusual conditions, the window is narrow. Agree with skipping stable for both sets. Many thanks, Junjie