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 B1FAF691F2 for ; Thu, 11 Feb 2021 17:18:00 +0100 (CET) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id A562B1EA54 for ; Thu, 11 Feb 2021 17:17:30 +0100 (CET) Received: from proxmox-new.maurer-it.com (proxmox-new.maurer-it.com [212.186.127.180]) (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 firstgate.proxmox.com (Proxmox) with ESMTPS id 1F1BD1EA45 for ; Thu, 11 Feb 2021 17:17:29 +0100 (CET) Received: from proxmox-new.maurer-it.com (localhost.localdomain [127.0.0.1]) by proxmox-new.maurer-it.com (Proxmox) with ESMTP id D827446246 for ; Thu, 11 Feb 2021 17:17:28 +0100 (CET) Message-ID: <06bf6db0-1eea-1e6d-cd3f-29bc1325f7f6@proxmox.com> Date: Thu, 11 Feb 2021 17:17:27 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:86.0) Gecko/20100101 Thunderbird/86.0 Content-Language: en-US To: Proxmox VE development discussion , Stefan Reiter References: <20210209152407.5871-1-s.reiter@proxmox.com> From: Thomas Lamprecht In-Reply-To: <20210209152407.5871-1-s.reiter@proxmox.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-SPAM-LEVEL: Spam detection results: 0 AWL -0.061 Adjusted score from AWL reputation of From: address KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment RCVD_IN_DNSWL_MED -2.3 Sender listed at https://www.dnswl.org/, medium trust 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] qmeventd: explicitly close() pidfds 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, 11 Feb 2021 16:18:00 -0000 On 09.02.21 16:24, Stefan Reiter wrote: > In most circumstances a pidfd gets closed automatically once the child > dies, and that *should* be guaranteed by us calling SIGKILL - however, > it seems that sometimes that doesn't happen, leading to leaked file > descriptors[0]. > > Also add a small note to verbose mode showing when the late-cleanup > actually happens, helped during debug. > > [0] https://forum.proxmox.com/threads/cannot-shutdown-vm.83911/ > > Signed-off-by: Stefan Reiter > --- > > I'm puzzled by this, and I'm not entirely sure this is the full fix, but it does > seem like a good idea to close the fds explicitly anyway. > > qmeventd/qmeventd.c | 2 ++ > 1 file changed, 2 insertions(+) > > applied, thanks!