On Fri, Jan 14, 2022 at 12:10:46AM +0000, Frank van der Linden wrote: > Thanks for discussing this further! I tried the above change, although > I wrapped it in an if (cap_mem_size != 0), so that a normal kernel > doesn't get its entire memory marked as reserved. Just to clarify: I had to do that because the code is slightly different on 5.15, where I tried it. It wasn't a bug in the proposed patch. Anyway, will try 5.17-rc tomorrow, I'll let you know, thanks again. - Frank