https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77538
--- Comment #20 from peien luo <coollpe at hotmail dot com> --- (In reply to Dmitry Vyukov from comment #18) > Looks like shadow stack overflow. > Do you use fibers, ucontext, longjmp, exceptions or any other non-obvious > control flow constructs? > Fibers and exceptions are not supported. Longjmp should work. (gdb) p &(thr->shadow_stack[0]) $9 = (unsigned long *) 0x7f9842712080 (gdb) p thr->shadow_stack_pos $10 = (__sanitizer::uptr *) 0x7f9842762b68 so it actually took the 'shadow stack' size of 330472, then it crashed. is that huge number abnormal?
