(In reply to Martin Jambor from comment #6) > (In reply to Jiri Slaby from comment #4) > > Could you clarify what "Recent updates of tumbleweed" broke this? > > I'm not sure if it helps but the most recent TW that I can find where > /proc/sys/kernel/yama/ptrace_scope still defaults to 0 is "20240209." > For example TW with version "20240218" already defaults to 1. Do you switch between snapshots or only kernels? 1 is the default for over a decade in the kernel. Maybe we used to set it in some package to 0 in /usr/lib/sysctl.d? Could you: grep -r ptrace_scope /usr/lib/sysctl* /etc/sysctl* in 20240209?