Index: head/contrib/jemalloc/FREEBSD-diffs
===================================================================
--- head/contrib/jemalloc/FREEBSD-diffs
+++ head/contrib/jemalloc/FREEBSD-diffs
@@ -233,7 +233,7 @@
 +#  define LG_SIZEOF_PTR		2
 +#endif
 +#ifdef __riscv
-+#  define LG_VADDR		64
++#  define LG_VADDR		48
 +#  define LG_SIZEOF_PTR		3
 +#endif
 +
Index: head/contrib/jemalloc/include/jemalloc/jemalloc_FreeBSD.h
===================================================================
--- head/contrib/jemalloc/include/jemalloc/jemalloc_FreeBSD.h
+++ head/contrib/jemalloc/include/jemalloc/jemalloc_FreeBSD.h
@@ -68,7 +68,7 @@
 #  define LG_SIZEOF_PTR		2
 #endif
 #ifdef __riscv
-#  define LG_VADDR		64
+#  define LG_VADDR		48
 #  define LG_SIZEOF_PTR		3
 #endif