The NetBSD-current/i386 build is working again. The following commits were made between the last failed build and the first successful build:
2023.08.12.23.22.49 christos src/sys/kern/sys_memfd.c 1.11
Logs can be found at:
http://releng.NetBSD.org/b5reports/i386/commits-2023.08.html#2023.08.12.23.22.49
