The NetBSD-current/i386 build is working again. The following commits were made between the last failed build and the successful build:
2022.05.24.15.51.10 bouyer src/sys/arch/xen/x86/pintr.c,v 1.23 2022.05.24.15.55.19 bouyer src/sys/arch/amd64/amd64/genassym.cf,v 1.86 2022.05.24.15.55.19 bouyer src/sys/arch/amd64/amd64/vector.S,v 1.78 2022.05.24.15.55.19 bouyer src/sys/arch/i386/i386/genassym.cf,v 1.123 2022.05.24.15.55.19 bouyer src/sys/arch/i386/i386/vector.S,v 1.88 2022.05.24.15.55.19 bouyer src/sys/arch/x86/include/intr.h,v 1.65 2022.05.24.15.55.19 bouyer src/sys/arch/xen/xen/evtchn.c,v 1.98 2022.05.24.16.01.25 bouyer src/sys/arch/amd64/conf/XEN3_DOM0,v 1.195 Logs can be found at: http://releng.NetBSD.org/b5reports/i386/commits-2022.05.html#2022.05.24.16.01.25