On Wed, Jun 16, 2021 at 03:47:28PM -0500, Eric W. Biederman wrote: > Fork already saves the registers, all I did was restore them. Which > makes a debugger that modifies them in > PTRACE_EVENT_{FORK,VFORK,CLONE,VFORK_DONE} work. ... first time ever. Wonderful and well worth the overhead. </sarcasm>