julia

e2b19a82 - signals: Don't use the mprotect membarrier fallback on RISC-V

signals: Don't use the mprotect membarrier fallback on RISC-V The mprotect fallback relies on memory-ordering properties established only for x86. Exclude RISC-V, as for ARM, and use thread suspension when the kernel membarrier syscall is unavailable. Assisted-by: Claude Code (Opus 5) Assisted-by: Codex (GPT-6)