* Juraj Oršulić: > I have a hair-tearing problem with x86_64 gcc 9.3.0 (Ubuntu 20.04), > -O2 and the following "minimal" example > (the real minimal example also links in a bunch of 3rd party libraries > and is a part of a big project, so I can't really provide a minimal example, > but I slimmed it down to basically this): Are you using the libgcc unwinder in the crashing case? (And not libunwind.) Thanks, Florian