hello,
I have Proxmox setup on my server and a VM with my cPanel with a few sites on it.. every time I try to backup the VM of AlmaLinux 8.5 and cPanel Qemu Agant Freeze and stops the back.
on Proxmox forum i read this here
just wondering if I try to turn off SecureTMP
what issues may I have if any on my server?
and if I do see an Issue how can I turn it back on after following the directions to turn it off from cPanel article
thanks so much
Spiro
I have Proxmox setup on my server and a VM with my cPanel with a few sites on it.. every time I try to backup the VM of AlmaLinux 8.5 and cPanel Qemu Agant Freeze and stops the back.
on Proxmox forum i read this here
Code:
Securetmp enables /dev/loop mounts
You'll need to disable it if you want to run snapshots/backups with CloudLinux
https://support.cpanel.net/hc/en-us/articles/360058525333-How-to-disable-scripts-securetmp
This is what CloudLinux sent me
Hello,
The issue is not related to CloudLinux directly, but to Qemu agent, which does not freeze the file system(s) correctly. What is actually happening:
When VM backup is invoked, Qemu agent freezes the file systems, so no single change will be made during the backup. But Qemu agent does not respect the loop* devices in freezing order (we have checked its sources), which leads to the next situation:
1) freeze loopback fs
---> send async reqs to loopback thread
2) freeze main fs
3) loopback thread wakes up and trying to write data to the main fs, which is still frozen, and this finally leads to the hung task and kernel crash.
I'm afraid we have no further recommendations at this point.
Thank you.
what issues may I have if any on my server?
and if I do see an Issue how can I turn it back on after following the directions to turn it off from cPanel article
thanks so much
Spiro
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