Index: sys/arch/mips/mips/mips_machdep.c
===================================================================
RCS file: /cvsroot/src/sys/arch/mips/mips/mips_machdep.c,v
retrieving revision 1.274
diff -p -u -U 5 -r1.274 mips_machdep.c
--- sys/arch/mips/mips/mips_machdep.c	30 Jul 2016 05:55:34 -0000	1.274
+++ sys/arch/mips/mips/mips_machdep.c	22 Dec 2016 06:54:02 -0000
@@ -2429,10 +2429,14 @@ mm_md_kernacc(void *ptr, vm_prot_t prot,
 	}
 	if (MIPS_XKSEG_P(v) && v < MIPS_KSEG0_START) {
 		*handled = true;
 		return 0;
 	}
+	if (MIPS_KSEG0_P(v)) {
+		*handled = true;
+		return 0;
+	}
 	if (MIPS_KSEG1_P(v) || MIPS_KSEG2_P(v)) {
 		return EFAULT;
 	}
 #else
 	if (v < MIPS_KSEG0_START) {