On Sun, 6 Jun 2021 at 23:51, Khem Raj <raj.khem@gmail.com> wrote:

Good sleuthing. Can you find out if libseccomp is in play ? if so
what version of libseccomp is being used by cmake if it is libseccomp
< 2.4.2 then time64 syscall support won't be there unless
its backported to the older version.

From what i could tell cmake does not use libseccomp, but centos8 could have some kind of syscall filtering in place. It would be good to try with a few older centos8 kernels.

Alex