Server Crash for unknown sources

From time to time Nethserver hangs up completely, approx. avery 2 Wo weeks (however no other obious time dependancy), mostly at night.

  • Nethserver in my case is viruallized on Proxmox, other servers are still available.
  • I do not see any link to regular jobs such as backups
  • Server really freezes - no connection via Webinterface or SSH is possible
  • Proxmox VNC Console is frozen, too
  • major log files seem to stop at a certain time

Any Ideas / tips which logs I should look at?

Would you please share the VM configuration and the hardware of your host?

Which kernel version?
Which nethserver version?

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Did you look at the proxmox logs too? I think your problem is there. I had an behaviour like this in the past with libvirt. It has run out of memory.

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Sorry for late replay - X-Mas is comming and customers want me to close projects before new year … so I was bussy at work …

Here is my proxmox config file @ /etc/pve/qemu-server
agent: 1
balloon: 0
boot: cd
bootdisk: scsi0
cores: 4
cpu: kvm64
hotplug: disk,network,usb
ide2: none,media=cdrom
keyboard: de
memory: 8192
name: nths-01
net0: virtio=aa:bb:cc:dd:ee:a1,bridge=vmbr0
numa: 0
onboot: 1
ostype: l26
scsi0: local-zfs:vm-100-disk-1,size=1T
scsihw: virtio-scsi-pci
smbios1: uuid=af37c120-4234-48bb-aab0-f52e8bdf88c5
sockets: 2
startup: order=1,up=120
tablet: 0
usb0: host=3-2
usb1: host=4-4,usb3=1
vga: qxl

Don’t look at the memory size - I tried different size settings ranging vom 4 to 16 GB. Most important to me is … at which log-files, either proxmox or nethserver, should I look at all?


Nethserver was 7.5 is now 7.6, kernal 3.10.0-957.1.3.el7.x86_64, but no crash on that system so far since 7 days.
Proxmox is 5.3-5 community edition, kernal 4.15.18-9-pve.


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