245874 2022-09-30 06:08:54 -0700 SIGILL early during WebProcess execution on ARM 32bit 2022-11-09 01:45:58 -0800 1 1 1 Unclassified WebKit WPE WebKit WebKit Local Build Other Linux RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=245321 P2 Blocker --- 245321 1 zimmermann zimmermann bugs-noreply mikhail webkit-bug-importer oldest_to_newest 1902310 0 zimmermann 2022-09-30 06:08:54 -0700 Since a while I'm hunting a SIGILL during WebProcess execution in early stages (sometimes within BMalloc Scanvenger thread, sometimes in WPE specific WebKitExtensionManager). I've bisected from beginning of September until now, and found 700ac83f17d8b756e640c6aaf20af02f9a6d08ce (https://bugs.webkit.org/show_bug.cgi?id=245321) to be the culprit. The HUGE clang-tidy patch that cleans up bmalloc/WTF/JSC/... I'm splitting it up locally into smaller pieces, only cleaning up bmalloc, only JSC, etc. to find the culprit. I bet we're seeing a compiler bug with clang10. My build environment is targeting an embedded ARM 32bit device using WPE. 1911194 1 zimmermann 2022-11-09 01:45:58 -0800 Closing as resolved, since the guilty patch was removed (https://github.com/WebKit/WebKit/commit/aabfacb8cf9ca4780d20ce2cca233f7988e994e2 ).