From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) by lore.proxmox.com (Postfix) with ESMTPS id D8C671FF17E for ; Thu, 16 Oct 2025 21:40:31 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id A3D7F19692; Thu, 16 Oct 2025 21:40:46 +0200 (CEST) From: Marco Gaiarin Date: Thu, 16 Oct 2025 10:45:43 +0200 Organization: Il gaio usa sempre TIN per le liste, fallo anche tu!!! Message-ID: X-Trace: eraldo.lilliput.linux.it 1760643357 343003 192.168.1.45 (16 Oct 2025 19:35:57 GMT) X-Mailer: tin/2.6.4-20240224 ("Banff") (Linux/6.14.0-33-generic (x86_64)) X-Gateway-System: SmartGate 1.4.5 To: pve-user@lists.proxmox.com X-SPAM-LEVEL: Spam detection results: 0 AWL -0.434 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DATE_IN_PAST_06_12 1.543 Date: is 6 to 12 hours before Received: date DMARC_PASS -0.1 DMARC pass policy JMQ_SPF_NEUTRAL 0.5 SPF set to ?all KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment SPF_HELO_PASS -0.001 SPF: HELO matches SPF record SPF_PASS -0.001 SPF: sender matches SPF record URIBL_BLOCKED 0.001 ADMINISTRATOR NOTICE: The query to URIBL was blocked. See http://wiki.apache.org/spamassassin/DnsBlocklists#dnsbl-block for more information. [qemu.org] Subject: [PVE-User] page allocation failure and virtio_balloon ... X-BeenThere: pve-user@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox VE user list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Proxmox VE user list MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: pve-user-bounces@lists.proxmox.com Sender: "pve-user" I've optimized memory management in a cluster i manage, defining for some VMs a min/max memory, and of course installing ballooning device. As a start i've setup min memory one half of the max memory, and i'm adding a GB of RAM one by one, but still i catch something some PAF in the VM: Oct 16 09:23:18 vdmsv1 kernel: [500235.012795] kworker/1:0: page allocation failure: order:0, mode:0x24310ca(GFP_HIGHUSER_MOVABLE|__GFP_NORETRY|__GFP_NOMEMALLOC) Oct 16 09:23:18 vdmsv1 kernel: [500235.012815] CPU: 1 PID: 25260 Comm: kworker/1:0 Not tainted 4.9.0-19-amd64 #1 Debian 4.9.320-3 Oct 16 09:23:18 vdmsv1 kernel: [500235.012816] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 Oct 16 09:23:18 vdmsv1 kernel: [500235.012834] Workqueue: events_freezable update_balloon_size_func [virtio_balloon] Oct 16 09:23:18 vdmsv1 kernel: [500235.012837] 0000000000000000 ffffffffad213127 ffffffffad603b30 ffffa1dbc42b3bd0 Oct 16 09:23:18 vdmsv1 kernel: [500235.012840] ffffffffacd8dd8a 024310ca00000006 ffffffffad603b30 ffffa1dbc42b3b70 Oct 16 09:23:18 vdmsv1 kernel: [500235.012842] ffff895a00000010 ffffa1dbc42b3be0 ffffa1dbc42b3b90 756a7c817f7c654b Oct 16 09:23:18 vdmsv1 kernel: [500235.012845] Call Trace: Oct 16 09:23:18 vdmsv1 kernel: [500235.012889] [] ? dump_stack+0x66/0x81 [...] Oct 16 09:23:18 vdmsv1 kernel: [500235.012981] [] ? ret_from_fork+0x57/0x70 Oct 16 09:23:18 vdmsv1 kernel: [500235.012982] Mem-Info: Oct 16 09:23:18 vdmsv1 kernel: [500235.012990] active_anon:1441909 inactive_anon:236013 isolated_anon:0 Oct 16 09:23:18 vdmsv1 kernel: [500235.012990] active_file:242538 inactive_file:271083 isolated_file:0 Oct 16 09:23:18 vdmsv1 kernel: [500235.012990] unevictable:575 dirty:327 writeback:0 unstable:0 Oct 16 09:23:18 vdmsv1 kernel: [500235.012990] slab_reclaimable:226171 slab_unreclaimable:119473 Oct 16 09:23:18 vdmsv1 kernel: [500235.012990] mapped:36459 shmem:30366 pagetables:55126 bounce:0 Oct 16 09:23:18 vdmsv1 kernel: [500235.012990] free:33864 free_pcp:11 free_cma:0 Oct 16 09:23:18 vdmsv1 kernel: [500235.012996] Node 0 active_anon:5767636kB inactive_anon:944052kB active_file:970152kB inactive_file:1084332kB unevictable:2300kB isolated(anon):0kB isolated(file):0kB mapped:145836kB dirty:1308kB writeback:0kB shmem:121464kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB pages_scanned:57 all_unreclaimable? no Oct 16 09:23:18 vdmsv1 kernel: [500235.012997] Node 0 DMA free:15908kB min:64kB low:80kB high:96kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Oct 16 09:23:18 vdmsv1 kernel: [500235.013001] lowmem_reserve[]: 0 2974 16013 16013 16013 Oct 16 09:23:18 vdmsv1 kernel: [500235.013004] Node 0 DMA32 free:64616kB min:12540kB low:15672kB high:18804kB active_anon:1347240kB inactive_anon:184356kB active_file:217624kB inactive_file:414336kB unevictable:0kB writepending:80kB present:3129196kB managed:2657840kB mlocked:0kB slab_reclaimable:211560kB slab_unreclaimable:116860kB kernel_stack:2960kB pagetables:44012kB bounce:0kB free_pcp:44kB local_pcp:0kB free_cma:0kB Oct 16 09:23:18 vdmsv1 kernel: [500235.013012] lowmem_reserve[]: 0 0 13039 13039 13039 Oct 16 09:23:18 vdmsv1 kernel: [500235.013015] Node 0 Normal free:54932kB min:54976kB low:68720kB high:82464kB active_anon:4420392kB inactive_anon:759696kB active_file:752528kB inactive_file:670024kB unevictable:2300kB writepending:1228kB present:13631488kB managed:8123560kB mlocked:2300kB slab_reclaimable:693124kB slab_unreclaimable:361032kB kernel_stack:15968kB pagetables:176492kB bounce:0kB free_pcp:112kB local_pcp:0kB free_cma:0kB Oct 16 09:23:18 vdmsv1 kernel: [500235.013019] lowmem_reserve[]: 0 0 0 0 0 Oct 16 09:23:18 vdmsv1 kernel: [500235.013022] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB Oct 16 09:23:18 vdmsv1 kernel: [500235.013033] Node 0 DMA32: 6146*4kB (UME) 3055*8kB (UME) 864*16kB (UM) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (H) 0*4096kB = 64896kB Oct 16 09:23:18 vdmsv1 kernel: [500235.013042] Node 0 Normal: 13730*4kB (UME) 2*8kB (M) 1*16kB (M) 3*32kB (M) 2*64kB (M) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 55176kB Oct 16 09:23:18 vdmsv1 kernel: [500235.013053] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB Oct 16 09:23:18 vdmsv1 kernel: [500235.013053] 582867 total pagecache pages Oct 16 09:23:18 vdmsv1 kernel: [500235.013054] 38399 pages in swap cache Oct 16 09:23:18 vdmsv1 kernel: [500235.013056] Swap cache stats: add 1479527, delete 1441128, find 6937743/7156831 Oct 16 09:23:18 vdmsv1 kernel: [500235.013057] Free swap = 14964364kB Oct 16 09:23:18 vdmsv1 kernel: [500235.013057] Total swap = 15624188kB Oct 16 09:23:18 vdmsv1 kernel: [500235.013058] 4194169 pages RAM Oct 16 09:23:18 vdmsv1 kernel: [500235.013058] 0 pages HighMem/MovableOnly Oct 16 09:23:18 vdmsv1 kernel: [500235.013059] 1494842 pages reserved Oct 16 09:23:18 vdmsv1 kernel: [500235.013059] 0 pages hwpoisoned Oct 16 09:23:18 vdmsv1 kernel: [500235.013096] virtio_balloon virtio0: Out of puff! Can't get 1 pages It is normal? There's something that i've not understood? Thanks. PS: phisical PVE node have free ram, it is currently about 80% of RAM (64GB total, so 12 free) -- _______________________________________________ pve-user mailing list pve-user@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user