http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59733
--- Comment #22 from Kostya Serebryany <kcc at gcc dot gnu.org> --- A quick workaround would be to change static const uptr kUserMapSize = 1 << 16; in sanitizer_common/sanitizer_allocator.h to something like 17 or 18. We can also try using mremap. However I'd like to hear from kernel experts whether this is considered a kernel bug or a feature.