Hi, On 2022-11-15 13:23:56 +0100, klaus.mailinglists@xxxxxxxxx wrote: > Filesystem is ext4. VM technology is mixed: VMware, KVM and XEN PV. Kernel > is 5.15.0-52-generic. > > We have not seen this with Ubutnu 18.04 and 20.04 (although we might not > have noticed it). Did this start after upgrading to 22.04? Or after a certain kernel upgrade? Do you use cgroups or such to limit memory usage of postgres? I'd be helpful to see /proc/meminfo from one of the affected instances. Greetings, Andres Freund
