310082 2026-03-16 23:05:48 -0700 [libpas] PAS_ASSERT should always use brk #0xc471 instead of #0x1 2026-03-20 22:09:17 -0700 1 1 1 Unclassified WebKit bmalloc WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 marcus_plutowski webkit-unassigned ggaren webkit-bug-importer oldest_to_newest 2190875 0 marcus_plutowski 2026-03-16 23:05:48 -0700 rdar://172722059 When libpas calls PAS_ASSERT with more than one argument, the __LINE__ and all arguments except the first (the condition) are stored in registers for our perusal in crash-dumps, and then we execute `brk #0xc471` to crash the program. But if it’s just one argument, then we instead do `__builtin_trap()` and rely on it being lowered to `__builtin_trap()` i.e. `brk #0x1`. Which is a bad idea for a variety of reasons. 2190880 1 marcus_plutowski 2026-03-16 23:54:46 -0700 Pull request: https://github.com/WebKit/WebKit/pull/60748 2192305 2 ews-feeder 2026-03-20 22:09:15 -0700 Committed 309669@main (7b43a563bdda): <https://commits.webkit.org/309669@main> Reviewed commits have been landed. Closing PR #60748 and removing active labels.