Comment # 2 on bug 1204380 from J���rgen Gro���

(In reply to Vlastimil Babka from comment #1)
> Was there a previous Leap 15.4 kernel version where you could say this
> wasn't happening?

Sorry, no. I updated the system from 15.3 just 2 weeks ago.

> It looks like shmem memory leak without visible users.
> 
> I'd recommend booting with page_owner=on, if you can tolerate some
> associated memory/cpu overhead. Once Shmem becomes prominent enough (can be
> before swap starts to be used), try capturing the largest memory users with
> the help of tools/vm/page_owner_sort.c (details in
> Documentation/mm/page_owner.rst ) and hopefully that will tell us something.

Okay, will try that.