Hi, On 2022-11-16 09:16:56 -0800, Andres Freund wrote: > 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. Another interesting thing would be to know the mount and file system options for the FS that triggers the failures. E.g. tune2fs -l path/to/blockdev and grep path/to/blockdev /proc/mounts Greetings, Andres Freund
