All the crashes are on "`movaps`" instructions, like "`movaps xmmword ptr [esi+0x30], xmm0`".
"`movaps`" must operate with aligned addresses as > When the source or destination operand is a memory operand, the operand must > be aligned on a 16-byte boundary or a general-protection exception (#GP) is > generated written in docs. When crashes, ESI contains value like `0x27DB63A8`, so it doesn’t seem aligned to 16-byte boundary. The line "`siginfo: ExceptionCode=0xc0000005, reading address 0xffffffff`" from `hs_err` file implicitly says it is GP, not a real "reading address 0xffffffff". It might be related to clang-cl bug, see https://github.com/llvm/llvm-project/issues/55844 The workaround is to disable SSE when building 32bit on Windows. (`-mno-sse`) ------------- Commit messages: - 8350284: WebKit 620.1 crashes on startup on Windows x86 32-bit Changes: https://git.openjdk.org/jfx/pull/1764/files Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1764&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8350284 Stats: 3 lines in 1 file changed: 3 ins; 0 del; 0 mod Patch: https://git.openjdk.org/jfx/pull/1764.diff Fetch: git fetch https://git.openjdk.org/jfx.git pull/1764/head:pull/1764 PR: https://git.openjdk.org/jfx/pull/1764
