Index: head/sys/riscv/riscv/machdep.c
===================================================================
--- head/sys/riscv/riscv/machdep.c
+++ head/sys/riscv/riscv/machdep.c
@@ -62,6 +62,7 @@
 #include <sys/syscallsubr.h>
 #include <sys/sysent.h>
 #include <sys/sysproto.h>
+#include <sys/tslog.h>
 #include <sys/ucontext.h>
 
 #include <vm/vm.h>
@@ -816,6 +817,8 @@
 	caddr_t kmdp;
 	int i;
 
+	TSRAW(&thread0, TS_ENTER, __func__, NULL);
+
 	/* Set the pcpu data, this is needed by pmap_bootstrap */
 	pcpup = &__pcpu[0];
 	pcpu_init(pcpup, 0, sizeof(struct pcpu));
@@ -888,6 +891,8 @@
 	kdb_init();
 
 	early_boot = 0;
+
+	TSEXIT();
 }
 
 #undef bzero