[systemd-devel] how to let systemd hibernate start/stop the swap area?

Michael Chapman mike at very.puzzling.org
Fri Mar 31 08:34:00 UTC 2023


On Fri, 31 Mar 2023, Tomasz Torcz wrote:
> On Fri, Mar 31, 2023 at 06:24:09PM +1100, Michael Chapman wrote:
> > On Fri, 31 Mar 2023, Barry wrote:
> > [...]
> > > If you want to run in ram only then you must turn off the kernel overcommit.
> > > Have you done that? If not then you risk processes getting SEGV signals.
> > 
> > Seriously. It's almost as if nobody here is actually reading anything of 
> > what I've written!
> > 
> > EVERYTHING fits in RAM. The non-guest processes total perhaps a GB in 
> > total. The guest processes total maybe 200 GB in total. The server has 
> > more RAM than all of that.
> 
>   Your situation seems to be special. People in this thread seem to be
> focused on generic Linux computer use-case.

And that was entirely my point. Lennart had mentioned one special case. I 
was just suggesting another one.

I wasn't expecting everyone to pile on and say "no, your special case is 
WRONG, and you're a bad person for even thinking about it!" :-p


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