Do not call hw_mds_recalculate() from initializecpu(). If MDS mitigation is enabled by the tunable but MDS microcode is not early-loaded, software mitigation is selected. This causes initializecpu() to try to allocate memory which makes boot process very unhappy. Create SYSINIT that runs sufficiently late to succeed. Reported by: naddy PR: 237968 Sponsored by: The FreeBSD Foundation MFC after: 1 week
head/sys/amd64/amd64/initcpu.c
head/sys/i386/i386/initcpu.c
head/sys/x86/x86/cpu_machdep.c