musl + safestack = segfault?

Hi all! Today I was experimenting with safestack, I’ve built my own toolchain using LLVM/Clang 11.0.1 and musl libc 1.2.2. I wanted to compile my tool with SafeStack support but when I run it I’m having segfault and GDB/LLDB say nothing about that. What should I do? How can I debug this?

UPDT. looks like there’s something wrong with addresses