https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85230
--- Comment #12 from Dmitry Vyukov <dvyukov at google dot com> --- When/if you have a patch I can test it on kernel. But seems this is a problem for user-space too. We just need a large alloca + signal handlers, or dirty manual SP manipulations (like we have in tsan to implement "cold call" calling convention).
