Proxmox boot issue ( kernal panic )

[vanot10964]

Hello, I have installed proxmox on my server. After power off, I try to load proxmox and I get this problem (PANIC at space_map.c:405:space_map_load_callback()).
The version of proxmoxVE is 8.2. How can I solve this problem? A screenshot of the problem is attached

 

[Gilou]

Hi,
This probably means your ZFS storage is corrupted… Or you hit a bug in zfs, or both.
That issue was mentioned on Github.
And the last comment points to a way to recover the data, but for a truenas scale install, not proxmox. However, I'm guessing it could be useful, or even work in your case.

 

[vanot10964]

Hi,
This probably means your ZFS storage is corrupted… Or you hit a bug in zfs, or both.
That issue was mentioned on Github.
And the last comment points to a way to recover the data, but for a truenas scale install, not proxmox. However, I'm guessing it could be useful, or even work in your case.

I looked at the server logs and you were right that the pool was corrupted. But now I would like to understand how to get the data out. I don't want to break anything, but it would be better if there was an option of full recovery without deleting the data. The error logs are attached.

 

[Gilou]

The linked articles suggests using zfs import as readonly to work around the bug/issue, maybe that can save you… It's a bit too precise / specific from this point for me to help you further…