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)) (No client certificate requested) by lists.proxmox.com (Postfix) with ESMTPS id 6CC6E721D6 for ; Thu, 1 Jul 2021 09:42:23 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 5F06421A71 for ; Thu, 1 Jul 2021 09:41:53 +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 id AC5CB21A63 for ; Thu, 1 Jul 2021 09:41:52 +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 7B8464214A for ; Thu, 1 Jul 2021 09:41:52 +0200 (CEST) Message-ID: <56ace99c-2b54-7b78-31ec-0956957b4a72@proxmox.com> Date: Thu, 1 Jul 2021 09:41:37 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:90.0) Gecko/20100101 Thunderbird/90.0 Content-Language: en-US To: Proxmox VE development discussion , Stefan Reiter References: <20210630151817.1707616-1-s.reiter@proxmox.com> From: Thomas Lamprecht In-Reply-To: <20210630151817.1707616-1-s.reiter@proxmox.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-SPAM-LEVEL: Spam detection results: 0 AWL 0.561 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record Subject: [pve-devel] applied: [PATCH qemu-server] cfg2cmd/drive: don't use io_uring for krbd with wb/wt cache 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 Jul 2021 07:42:23 -0000 On 30.06.21 17:18, Stefan Reiter wrote: > As reported here and locally reproduced: > https://forum.proxmox.com/threads/efi-vms-wont-start-under-7-beta-with-writeback-cache.91629/ > > This configuration is currently broken. Until we figure out how to fix > it properly, we can just have this (luckily very narrow) config pattern > fall back to aio=threads as it used to. > > Signed-off-by: Stefan Reiter > --- > > I tried my usual QEMU debugging routine, but couldn't figure anything specific > out - it's not related to EFI, happens on SeaBIOS too, but looking at GDB just > appears that it's waiting for the io_uring fd to become ready (in ppoll)... > I did also test with a newer liburing (2.0 from git) but it didn't help. > > Anyway, until I figure it out (which may not happen until the release), let's > work around with this, we can always roll this back later, as it doesn't break > migration/snapshots to change 'aio' type. > > The forum post mentioned other SCSI controllers fixing the issue too, but that > just confuses me even more, and we don't have that information available for > cheap here, so I just made it fall back for all of them. > weird stuff... > PVE/QemuServer.pm | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > applied for now, thanks!