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Index: sys/arm64/arm64/pmap.c
===================================================================
--- sys/arm64/arm64/pmap.c
+++ sys/arm64/arm64/pmap.c
@@ -6832,8 +6832,12 @@
* The translation fault may have occurred within a
* critical section. Therefore, we must check the
* address without acquiring the kernel pmap's lock.
+ *
+ * If the address is in DMAP and fault occured, it
+ * means it's not part of a valid region and therefore
+ * there is no valid translation to phys address.
*/
- if (pmap_kextract(far) != 0)
+ if (!VIRT_IN_DMAP(far) && pmap_kextract(far) != 0)
rv = KERN_SUCCESS;
} else {
PMAP_LOCK(pmap);

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