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--- general:ipkm_it_post_mortem [2025-02-07 10:03] – Markus Rosenstihl
+++ general:ipkm_it_post_mortem [2025-02-07 11:09] (current) – Markus Rosenstihl
@@ Line 3: / Line 3: @@
 Mail host was responding to pings but ssh and all mail/LDAP related stuff was not working.
-Node was moved to pve-gustav (which ran a different qemu-kvm version, wee below) the evening before.
+<del>Node was moved to pve-gustav (which ran a different qemu-kvm version, wee below) the evening before.</del> Not according to the logfiles.
+Graylog search: "update VM 105"
+The hotplug setting has not been changed either.
 Somebody rebooted the MV around 15:08:
@@ Line 77: / Line 80: @@
 </code>
-Going in to the Proxmox web interface and attach the console to see if there is any output on the terminal revealed some kind of memory issues:
+Going in to the Proxmox web interface and attach the console to see if there is any output on the terminal revealed some kind of memory issues (oom, etc.)
+Reboot did not help, VM crashed very soon after that.
 Fix: Disable the option for memory hotplug!
@@ Line 85: / Line 88: @@
 hotplug: disk,network,usb,cpu # was additionally with memory
 </code>
@@ Line 95: / Line 97: @@
 pve-hans.cluster: ii  pve-qemu-kvm   8.1.5-5      amd64        Full virtualization on x86 hardware
 </code>
+Symptoms are similar to: https://forum.proxmox.com/threads/memory-hotplug-prevents-vm-boot.122599/