http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59286
--- Comment #11 from Kostya Serebryany <kcc at gcc dot gnu.org> --- (In reply to Joost VandeVondele from comment #10) > well, maybe a more simple reason. If I export > export OMP_STACKSIZE=32M > (i.e. stack size for the threads), the segfault disappears... does that > sound like a good reason (i.e. tsan instrumented binary might require more > stack), or does this seem just lucky coincidence ? Looks more like (un)lucky coincidence.