cpptest fail on ppc64le

[ivmai]

Build: https://app.travis-ci.com/github/ivmai/bdwgc/jobs/538255319 Source: https://github.com/ivmai/bdwgc/commit/eed7e2372fed90a97b079a1fe26e65a6867dc836 (master) Config:

• Compiler: clang C++
• Arch: ppc64le
• CMAKE_CONFIG="Release" CMAKE_OPTIONS="-Dbuild_tests=ON -Denable_cplusplus=ON -Denable_gc_assertions=ON" NO_CLONE_LIBATOMIC_OPS=true Occurrence: rarely

Output: 14: Test command: /home/travis/build/ivmai/bdwgc/test_cpp 14: Test timeout computed to be: 1500 14: usage: test_cpp number-of-iterations 14: Assuming 10 iters 14: Starting iteration 1 14: Starting iteration 2 14: Starting iteration 3 14: Starting iteration 4 14: Starting iteration 5 14: Starting iteration 6 14: Starting iteration 7 14: Starting iteration 8 14: Assertion failure in /home/travis/build/ivmai/bdwgc/tests/test_cpp.cc, line 145: level == 0 ? left == 0 && right == 0 : level == left->level + 1 && level == right->level + 1 14/17 Test # 14: test_cpp .........................***Failed 14.11 sec

[ivmai]

Probably same failure reproduced on release-7_4 (commit ed1bd6083) - https://app.travis-ci.com/github/ivmai/bdwgc/builds/238473093

[ivmai]

Related issue #370 (the root cause seems to be same).

[ivmai]

Latest fail on master (16ffd18): https://app.travis-ci.com/github/ivmai/bdwgc/jobs/553625305

[ivmai]

Build: https://app.travis-ci.com/github/ivmai/bdwgc/jobs/561664896 Source: release-8_2 (1cc56ba) Compiler: Ubuntu clang version 12.0.0-3ubuntu1~20.04.4 CFLAGS_EXTRA="-O3" CONF_OPTIONS="--enable-gc-assertions --enable-cplusplus --enable-static"

[ivmai]

Latest build: https://app.travis-ci.com/github/ivmai/bdwgc/jobs/567842098 Source: release-8_2 (94eb525) Config: CFLAGS_EXTRA="-O3 -D NO_MPROTECT_VDB" CONF_OPTIONS="--enable-cplusplus" Compiler: gcc-11 (Ubuntu 11.1.0-1ubuntu1~18.04.1) 11.1.0

[ivmai]

Latest build: https://app.travis-ci.com/github/ivmai/bdwgc/jobs/567979885 Source: master (fd4e579)