[CentOS-devel] glibc with clone3 in the CentOS 9 buildroot

Tue Aug 3 15:35:40 UTC 2021
Florian Weimer <fweimer at redhat.com>

We have merged a toolchain update which brings in a glibc build very
close to glibc 2.34 upstream release.  This build starts using clone3
for creating threads.  This may require browser and container tools
updates which adjust seccomp filters.  clone3 kernel support is NOT
required, but a proper “system call not supported” error (ENOSYS, like
older kernels report without seccomp filters) or a working clone3 system
call is now necessary.