Comment # 40 on bug 1165351 from Thomas Blume

(In reply to Luis Chamberlain from comment #39)
> > However, it seems that the limit for the system daemon is fine and the
> > problem is with the user daemon (systemd --user).
> > In that case the workaround given was wrong indeed.
> > 
> > Please revert the changes in /etc/systemd/system.conf and edit
> > /usr/lib/systemd/system/user-.slice.d/10-defaults.conf
> > 
> > instead.
> > There please set MemoryHigh and MemoryMax limits according to the
> > documentation in the systemd.resource-control manpage.
> > 
> > Please report whether this fixes the ooms.
> 
> Nope, the full 30 GiB *and* then swap are eaten up and then the OOM
> triggers. I rebooted the system after making the changes and trying.

Unfortunately, it seems that the session cleanup was successfull this time.
I don't see a user@1000.slice on chivo anymore, so I cannot verify the
settings. :(
Could you please retry the login on chivo?
Even better would be if you create a local (non root) user for me so that I can
test myself and don't need to nag you all the time.