https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62132
--- Comment #11 from Iain Sandoe <iains at gcc dot gnu.org> --- (In reply to Yury Gribov from comment #10) > (In reply to Dominique d'Humieres from comment #9) > > Per comments 6 and 7 I have tried > > ... > > but it does not fix the failures. What am I misunderstanding? > > That wouldn't help because libsanitizer does not use -funwind-tables even if > they are available. I think the problem is in StackTrace::WillUseFastUnwind > in libsanitizer/sanitizer_common/sanitizer_stacktrace.h. Dominique, in summary: as things stand (with the current asan) your first fix LGTM. However, you should post it for approval by an appropriate maintainer.