I have seen this fail in the pre-commit bot here: https://build.webkit.org/builders/JSCOnly%20Linux%20ARMv7%20Thumb2%20Release/builds/11503/steps/jscore-test/logs/stdio However, when I try to reproduce it on my armv7 devices locally it doesn't crash with segfault. So there's some flakiness going on and requires investigation. Skipped under r261474 until this is fixed.