Forgot I'd opened a bugzi for the problem.
480706 Unhandled syscall 325 (mlock2)
481127 amd64: Implement VFMADD213 for Iop_MAddF32
481131 [PATCH] x86 regtest: fix clobber lists in generated asm statements
+481676 Build failure on Raspberry Pi 5 Ubuntu 23.10 with clang
483786 Incorrect parameter indexing in FreeBSD clock_nanosleep syscall wrapper
484002 Add suppression for invalid read in glibc's __wcpncpy_avx2() via wcsxfrm()
484426 aarch64: 0.5 gets rounded to 0