From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.proxmox.com (Postfix) with ESMTPS id 4BA1D9CB67 for ; Thu, 1 Jun 2023 11:34:05 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 353421C691 for ; Thu, 1 Jun 2023 11:34:05 +0200 (CEST) Received: from proxmox-new.maurer-it.com (proxmox-new.maurer-it.com [94.136.29.106]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by firstgate.proxmox.com (Proxmox) with ESMTPS for ; Thu, 1 Jun 2023 11:34:04 +0200 (CEST) Received: from proxmox-new.maurer-it.com (localhost.localdomain [127.0.0.1]) by proxmox-new.maurer-it.com (Proxmox) with ESMTP id 827F2480EC; Thu, 1 Jun 2023 11:34:04 +0200 (CEST) Message-ID: <4d8191f2-4954-1e4f-a40c-51544289b2ce@proxmox.com> Date: Thu, 1 Jun 2023 11:34:03 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.11.0 Content-Language: en-US To: Proxmox VE development discussion , Alexandre Derumier References: <20230522102528.186955-1-aderumier@odiso.com> From: Fiona Ebner In-Reply-To: <20230522102528.186955-1-aderumier@odiso.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-SPAM-LEVEL: Spam detection results: 0 AWL -0.003 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DMARC_MISSING 0.1 Missing DMARC policy KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment NICE_REPLY_A -0.091 Looks like a legit reply (A) SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record T_SCC_BODY_TEXT_LINE -0.01 - Subject: Re: [pve-devel] [PATCH-SERIES v3 qemu-server/manager/common] add and set x86-64-v2 as default model for new vms and detect best cpumodel X-BeenThere: pve-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox VE development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Jun 2023 09:34:05 -0000 Am 22.05.23 um 12:25 schrieb Alexandre Derumier:> Nahelemn is a 2008 cpu, so I think it's ok, we are in 2013 ;) > (and user can disable aes flag in gui too) > > That mean than the minimum compatible cpu for v2 is Intel Westmere (2010) > and Amd Bulldozer (2011). > Unfortunately, it doesn't seem to be rock stable on AMD hosts :( When using Nehalem on my AMD Ryzen Threadripper 2920X, I get hangs during installation of Debian 11 and for an already existing one, crashes during boot. This is with or without AES flag. Colleagues with AMD CPUs also ran into similar issues when using CPU type Nehalem. Note that these were not server CPUs, Aaron said, he'll test those later (please reply to here with the results :)). It would be bad if too many AMD CPUs aren't happy with the new default :/ In the worst case, we'd only be able to switch to the new default for Intel hosts. What AMD CPUs did you try it on?