https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79430
--- Comment #58 from Thomas Koenig <tkoenig at gcc dot gnu.org> --- (In reply to Thomas Koenig from comment #57) > And here comes the first problem... > > Running with rev 243584 (as a bisection) results in > very many failed tests like *** Error in `/home/ig25/Downloads/whizard-2.4.1/src/.libs/whizard': double free or corruption (!prev): 0x0000000001e97360 *** ======= Backtrace: ========= /lib64/libc.so.6(+0x7383b)[0x7f05eded383b] /lib64/libc.so.6(+0x79dee)[0x7f05eded9dee] /lib64/libc.so.6(+0x7a5fe)[0x7f05ededa5fe] /home/ig25/Downloads/whizard-2.4.1/src/.libs/libwhizard.so.1(__models_MOD___final_models_Model_t+0x23a)[0x7f05f00121ca] /home/ig25/Downloads/whizard-2.4.1/src/.libs/libwhizard.so.1(__process_config_MOD_process_config_data_final+0x69)[0x7f05f005fb89] /home/ig25/Downloads/whizard-2.4.1/src/.libs/libwhizard.so.1(__process_MOD_process_final+0x4e)[0x7f05f007d44e] /home/ig25/Downloads/whizard-2.4.1/src/.libs/libwhizard.so.1(__process_stacks_MOD_process_stack_clear+0xbd)[0x7f05f00bee2d] /home/ig25/Downloads/whizard-2.4.1/src/.libs/libwhizard.so.1(__process_stacks_MOD_process_stack_final+0xb)[0x7f05f00b6dab] /home/ig25/Downloads/whizard-2.4.1/src/.libs/libwhizard.so.1(__rt_data_MOD_rt_data_global_final+0x2a)[0x7f05efca80fa] /home/ig25/Downloads/whizard-2.4.1/src/.libs/libwhizard.so.1(__whizard_MOD_whizard_final+0x2a)[0x7f05efd41c1a] /home/ig25/Downloads/whizard-2.4.1/src/whizard-core/.libs/libwhizard_main.so.0(+0x412f)[0x7f05f215d12f] /home/ig25/Downloads/whizard-2.4.1/src/whizard-core/.libs/libwhizard_main.so.0(main+0x1f)[0x7f05f215b9bf] /lib64/libc.so.6(__libc_start_main+0xf1)[0x7f05ede80541] /home/ig25/Downloads/whizard-2.4.1/src/.libs/whizard[0x4005da] Hmm... seems like I need to apply revision 245191 on top. We'll see what that does.