[SOLVED] Error "Could not statfs: No such file or directory"

[OfficerCat]

Whenever i try to delete a snapshot of a Windowsmachine, that includes RAM, i get this Error "TASK ERROR: btrfs error: ERROR: Could not statfs: No such file or directory".

It leaves my VM in a "locked" state.

I checked if the snapshot has been deleted, and in fact it was.
After using "qm unlock *VMID*" i can use the VM as usual, tho it still shows the snapshot in GUI.

If i use " delsnapshot --force " in console the snapshot disappears also from Gui

I am wondering if i missconfigured something, or if its just how it is at the moment for Window VMs.

With Linux VM's and Containers i don't have this issue

Its not a productive environment just my playground.

If anyone has an Idea i would be greatfull if you could share it with me / us.

Spoiler: pveversion --verbose

pveversion --verbose
proxmox-ve: 7.0-2 (running kernel: 5.11.22-3-pve)
pve-manager: 7.0-11 (running version: 7.0-11/63d82f4e)
pve-kernel-5.11: 7.0-7
pve-kernel-helper: 7.0-7
pve-kernel-5.11.22-4-pve: 5.11.22-8
pve-kernel-5.11.22-3-pve: 5.11.22-7
pve-kernel-5.11.22-1-pve: 5.11.22-2
ceph-fuse: 15.2.13-pve1
corosync: 3.1.2-pve2
criu: 3.15-1+pve-1
glusterfs-client: 9.2-1
ifupdown2: 3.1.0-1+pmx3
ksm-control-daemon: 1.4-1
libjs-extjs: 7.0.0-1
libknet1: 1.21-pve1
libproxmox-acme-perl: 1.3.0
libproxmox-backup-qemu0: 1.2.0-1
libpve-access-control: 7.0-4
libpve-apiclient-perl: 3.2-1
libpve-common-perl: 7.0-6
libpve-guest-common-perl: 4.0-2
libpve-http-server-perl: 4.0-2
libpve-storage-perl: 7.0-10
libspice-server1: 0.14.3-2.1
lvm2: 2.03.11-2.1
lxc-pve: 4.0.9-4
lxcfs: 4.0.8-pve2
novnc-pve: 1.2.0-3
proxmox-backup-client: 2.0.9-2
proxmox-backup-file-restore: 2.0.9-2
proxmox-mini-journalreader: 1.2-1
proxmox-widget-toolkit: 3.3-6
pve-cluster: 7.0-3
pve-container: 4.0-9
pve-docs: 7.0-5
pve-edk2-firmware: 3.20200531-1
pve-firewall: 4.2-2
pve-firmware: 3.3-1
pve-ha-manager: 3.3-1
pve-i18n: 2.4-1
pve-qemu-kvm: 6.0.0-3
pve-xtermjs: 4.12.0-1
qemu-server: 7.0-13
smartmontools: 7.2-1
spiceterm: 3.2-2
vncterm: 1.7-1
zfsutils-linux: 2.0.5-pve1

 

[fiona]

Hi,

Whenever i try to delete a snapshot of a Windowsmachine, that includes RAM, i get this Error "TASK ERROR: btrfs error: ERROR: Could not statfs: No such file or directory".

thanks! I was able to reproduce the issue.

It leaves my VM in a "locked" state.

I checked if the snapshot has been deleted, and in fact it was.
After using "qm unlock *VMID*" i can use the VM as usual, tho it still shows the snapshot in GUI.

If i use " delsnapshot --force " in console the snapshot disappears also from Gui

I am wondering if i missconfigured something, or if its just how it is at the moment for Window VMs.

With Linux VM's and Containers i don't have this issue

The issue should affect Linux VMs too (and also containers with more than one volume, but for containers, it shouldn't be possible to trigger via GUI).

Its not a productive environment just my playground.

I'd hope so, as BTRFS integration is currently only a technology preview

If anyone has an Idea i would be greatfull if you could share it with me / us.

I sent a patch.

 

[OfficerCat]

Hi,

thanks! I was able to reproduce the issue.


The issue should affect Linux VMs too (and also containers with more than one volume, but for containers, it shouldn't be possible to trigger via GUI).


I'd hope so, as BTRFS integration is currently only a technology preview


I sent a patch.

Ah good to see, that its not just me and my bad knowledge of BTRFS

I will apply that patch asap, tho i am not sure if i will be able before next week.

Thanks for your help !

 

[djzer0g]

new here .... i have this issue as well, but not sure how patches are applied.
like REALLy new.

 

[BenjaMwaye]

Hi everybody,

I've got the same problem, but I don't know how to get and apply the patch.
Can someone explain a little the way to do it?

Thanks in advance.
Bests regards,

Benjam

 

[fiona]

EDIT: fix is included in libpve-storage-perl >= 7.0-13, so I removed the commands for manually applying.

 

[BenjaMwaye]

Hi,

Thanks for the method to patch.
I try but patch make an error. I will try again later.
But it's not very important because the bug don't appear everytime.
I do with this for now.
Thanks à lot

Best regards,
Benjam

 

[Excalibur]

umm edit because I might messed up file myself

 

[fiona]

umm edit because I might messed up file myself

To reinstall the packaged file use apt install --reinstall libpve-storage-perl. Note that the fix is already included with libpve-storage-perl >= 7.0-13.