Behavior and Analysis
After we upgrades the VMWARE Version of an Actifio Appliance from ESX 6.5 Version 9 to 13 (the actual one) this Linux Guest crashed with VMware core dump again and again. Problem analysis was horrible.
Most time VMware HA had restarted the guest it crashed again if i tried to connect via SSH console. So it was a night mare in problem analysis but much time and a lot of retries later we succeded in scp download the vmcore files.
So we could analyse it and found the reason: