This now errors on undefined behavior instead of warning. Smoke logs available at http://m-l.org/~perl/smoke/perl/x86_64-linux-thread-multi/smoke-me_clang_quick_sanitize=undefined/David%20Mitchell/log8f5afbaad9e15cf8c2e780b3c5fd77a3aeb09e86.log.gz Automated smoke report for branch smoke-me/davem/rc_stack2 5.37.10 patch 8f5afbaad9e15cf8c2e780b3c5fd77a3aeb09e86 v5.37.9-107-g8f5afbaad9 vier.local: Intel(R) Xeon(R) CPU E5-1620 0 @ 3.60GHz (GenuineIntel 4676MHz) (x86_64/1 cpu[8 cores]) on linux - 5.18.18-200.fc36.x86_64 [Fedora Linux 37] using ccache clang version Clang 15.0.7 (Fedora 15.0.7-1.fc37) smoketime 2 hours 51 minutes (average 42 minutes 50 seconds) Summary: PASS O = OK F = Failure(s), extended report at the bottom X = Failure(s) under TEST but not under harness ? = still running or test results not (yet) available Build failures during: - = unknown or N/A c = Configure, m = make, M = make (after miniperl), t = make test-prep v5.37.9-107-g8f5afbaad9 Configuration (common) -Accflags="-g -fno-omit-frame-pointer -fno-sanitize-recover=undefined -fsanitize-blacklist=`pwd`/asan_ignore" -Aldflags="-fno-sanitize-recover=undefined" -Dcc="ccache clang" ----------- --------------------------------------------------------- O O O O -Duseithreads | +--------- -DDEBUGGING +----------- no debugging Testsuite was run only with 'harness' and HARNESS_OPTIONS=j4 MANIFEST did not declare '.mailmap' (See log because mailing list size limit is too small.) Non-Fatal messages(gcc): -- Report by Test::Smoke v1.72 running on perl 5.36.0 (Reporter v0.053 / Smoker v0.046)