Log files full of nfs messages

[Karistea]

Hi,

one of my nodes occasionally generate a lot of the following messages:

[Wed Jan 15 21:05:03 2021] nfs4_free_slot: slotid 1 highest_used_slotid 0
[Wed Jan 15 21:05:03 2021] nfs41_sequence_process: Error 0 free the slot 
[Wed Jan 15 21:05:03 2021] nfs4_free_slot: slotid 0 highest_used_slotid 4294967295
[Wed Jan 15 21:05:03 2021] NFS: nfs_weak_revalidate: inode 2 is valid
[Wed Jan 15 21:05:03 2021] NFS: nfs_weak_revalidate: inode 2 is valid
[Wed Jan 15 21:05:03 2021] NFS: permission(0:57/2), mask=0x81, res=0
[Wed Jan 15 21:05:03 2021] NFS: nfs_lookup_revalidate_done(/images) is valid
[Wed Jan 15 21:05:03 2021] NFS: permission(0:57/2), mask=0x81, res=0
[Wed Jan 15 21:05:03 2021] NFS: nfs_lookup_revalidate_done(/template) is valid
[Wed Jan 15 21:05:03 2021] NFS: permission(0:57/9445), mask=0x81, res=0
[Wed Jan 15 21:05:03 2021] NFS: nfs_lookup_revalidate_done(template/iso) is valid
[Wed Jan 15 21:05:03 2021] NFS: nfs_weak_revalidate: inode 2 is valid
[Wed Jan 15 21:05:03 2021] --> nfs41_call_sync_prepare data->seq_server 0000000039caf871
[Wed Jan 15 21:05:03 2021] --> nfs4_alloc_slot used_slots=0000 highest_used=4294967295 max_slots=64
[Wed Jan 15 21:05:03 2021] <-- nfs4_alloc_slot used_slots=0001 highest_used=0 slotid=0
[Wed Jan 15 21:05:03 2021] encode_sequence: sessionid=167:1582234786:305419896:167 seqid=3915997 slotid=0 max_slotid=0 cache_this=0
[Wed Jan 15 21:05:03 2021] decode_attr_files_avail: files avail=279457174
[Wed Jan 15 21:05:03 2021] decode_attr_files_free: files free=279457174
[Wed Jan 15 21:05:03 2021] decode_attr_files_total: files total=279457264
[Wed Jan 15 21:05:03 2021] decode_attr_space_avail: space avail=145339547648
[Wed Jan 15 21:05:03 2021] decode_attr_space_free: space free=145339547648
[Wed Jan 15 21:05:03 2021] decode_attr_space_total: space total=858993459200
[Wed Jan 15 21:05:03 2021] decode_statfs: xdr returned 0!
[Wed Jan 15 21:05:03 2021] --> nfs4_alloc_slot used_slots=0001 highest_used=0 max_slots=64
[Wed Jan 15 21:05:03 2021] <-- nfs4_alloc_slot used_slots=0003 highest_used=1 slotid=1

This ends to a / filesystem full within a few minutes. If I migrate the VM with the nfs storage on a different host, the messages stop. I've tried restart of rpcbind and rpc-statd in case it helps but it didnt.
What other things I could check in order to investigate this?
The same nfs share serve a number of VMs through the other proxmox nodes without similar issues.

thank you.

 

[Dominic]

Have you already been able to solve this? Are you 100% sure that you're running the same versions on your PVE nodes?