Modding Linux to use SIGKILL on every process
Summary
An in-depth look at Linux's signal handling, focusing on SIGKILL and SIGSTOP and why they cannot be caught or masked by design. The author documents patching the kernel to make these signals handler-able or masked, including rationale, risks, and step-by-step patches. The piece blends kernel internals with practical experimentation, offering insights for kernel developers and advanced users curious about process control boundaries.