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I have repeatedly come across a situation in which updating the host (kernel and some other components) leads to the fact that when the container is stopped, the host freezes. Is it possible to solve this problem in some way, in addition to the method of first stopping all containers before...

Hi! Linux kernel have default hardcoded parameter BR_PORT_BITS = 10. This param limit max bridges to 1024 (2^10 = 1024). In some cases need increase this param - for example qty containers over 1024 - big lxc containers with nested dockers containers. I know BR_PORT_BITS limit is inspired by...

Today one of the servers is stuck, some time after the next message: Feb 17 04:15:11 hostA kernel: [472111.800882] WARNING: CPU: 41 PID: 0 at net/sched/sch_generic.c:323 dev_watchdog+0x222/0x230 Feb 17 04:15:11 hostA kernel: [472111.801110] R13: ffff974a19760000 R14: ffff974a19760478 R15...

Summary: pve-manager/5.3-5/97ae681d (running kernel: 4.15.18-9-pve) ceph version 12.2.8 (6f01265ca03a6b9d7f3b7f759d8894bb9dbb6840) luminous (stable) 4 nodes (per node: 4 nvme ssd & 2 sas ssd, bluestore) + 1 node with 4 sata ssd interconnect - 2x 10Gbps Created pool (512 PGs, replicated 3/2) on...

I switch cache-mode from writeback to proxy # ceph osd tier cache-mode rbd_nvme proxy But after cache-flush-evict-all (with errors) cache filled again # rados -p rbd_nvme cache-flush-evict-all | grep failed failed to flush /rbd_header.5a06de6b8b4567: (16) Device or resource busy failed to...

Currently with VirtIO-SCSI (VirtIO-SCSI Single with threads) have max IOPS is ~1.8k-2.3k. But Virtio-blk-data-plane may have over 100k IOPS https://www.suse.com/media/white-paper/kvm_virtualized_io_performance.pdf May I switch to Virtio-blk-data-plane instead VirtIO-SCSI in Proxmox?

Does the kernel 4.15.18-9-pve have the following patches (?): https://lkml.org/lkml/2018/7/9/181 ? This patch set is released in kernel 4.19

Error: [Tue Nov 13 14:35:35 2018] Uhhuh. NMI received for unknown reason 21 on CPU 84. [Tue Nov 13 14:35:35 2018] Do you have a strange power saving mode enabled? [Tue Nov 13 14:35:35 2018] Dazed and confused, but trying to continue Hardware: CPU 2x AMD EPYC 7601 on Supermicro H11DST-B...

Hi all! I found next situation: when link is unstable, (such as network card 10Gbps attached to switch by connectors RJ45 w/o gilding - contacts on network card and on connector can be oxidized), switch can up/down links and after which corosync goes "crazy" - starts loading one core of the...

Summary: Use next platform Supermicro A+ Server 2123BT-HNC0R with per node configuration: NVME: 4x 2.5" U.2 Intel Optane 900P 280GB 1x M.2 Samsung SM961 256GB (NVMe) SM961 SAS: 2x 2'5" SSD Samsung PM1633a 7.68TB FC: QLogic QLE8362 (attache to FC switch, for use exported...

Summary: Create cluster, add nodes (work only by --use_ssh), When try look at another node status - request https://node-a:8006/api2/json/nodes/node-b/storage/local/status - fail with error: 596 Connection time out But if login on each nodes - status returned Connection is direct, no any proxy...

Have the next problem: https://forum.proxmox.com/threads/proxmox-cluster-hangs-partially.36209/#post-191417 I kill corosync, stop pve-ha-*, restart pvedaemon. When I restart pve-manager, containers restarted too. Why? How to prevent restart containers when restart pve-manager? # pveversion...

In linux all /dev/disk/by-* show link to block device in /dev/sd?, example: # ls -la /dev/disk/by-path/ total 0 drwxr-xr-x 2 root root 200 Nov 2 12:58 . drwxr-xr-x 8 root root 160 Nov 1 21:21 .. lrwxrwxrwx 1 root root 9 Nov 2 12:59 pci-0000:05:00.0-fc-0x2100000e1ecd8890-lun-0 -> ../../sde...

Summary: I have container with root disk stored on storage 'local': I want to move the root disk to another storage: local -> my-other-storage How to do this? Why this action I can't make by WebUI? When this action will be can make by WebUI?

Summary: pve-manager/4.4-5/c43015a5 (running kernel: 4.4.35-2-pve) The node have attached storage by NFS (it will use for vzdump backups) with mount point /mnt/pve/backup-1 When pve try to create backup it fail with error: INFO: starting new backup job: vzdump 111 --compress lzo --node lpr8...

How do change (persistent) limits (open files) for unprivileged containers? root@container1:~# ulimit -n 65536 -bash: ulimit: open files: cannot modify limit: Operation not permitted prlimit - not affected changes in pvenode:/etc/security/limit.conf - not affected

For example: have ocfs2 mounted volume as storage on proxmox. ocfs2 volume have next blocksize /sbin/tunefs.ocfs2 -Q 'blocksize: %B\nclustersize: %T\n' /dev/sdd1 blocksize: 4096 clustersize: 4096 and volume on barmetal storage and hdd/ssd have 512 or 4096 bytes blocksize. After create...

How about to show in webui ip of container leased by dhcp?