diff --git a/mercurial/revlog.py b/mercurial/revlog.py
--- a/mercurial/revlog.py
+++ b/mercurial/revlog.py
@@ -1659,6 +1659,15 @@
             if p1 is None and p2 is None:
                 p1, p2 = self.parents(node)
             if node != self.hash(text, p1, p2):
+                # Clear the revision cache on hash failure. The revision cache
+                # only stores the raw revision and clearing the cache does have
+                # the side-effect that we won't have a cache hit when the raw
+                # revision data is accessed. But this case should be rare and
+                # it is extra work to teach the cache about the hash
+                # verification state.
+                if self._revisioncache and self._revisioncache[0] == node:
+                    self._revisioncache = None
+
                 revornode = rev
                 if revornode is None:
                     revornode = templatefilters.short(hex(node))
diff --git a/mercurial/testing/storage.py b/mercurial/testing/storage.py
--- a/mercurial/testing/storage.py
+++ b/mercurial/testing/storage.py
@@ -881,13 +881,14 @@
         with self.assertRaises(error.StorageError):
             f.revision(node1)
 
-        # revision(raw=True) still verifies hashes.
-        # TODO this is buggy because of cache interaction.
-        self.assertEqual(f.revision(node1, raw=True), fulltext1)
+        # raw=True still verifies because there are no special storage
+        # settings.
+        with self.assertRaises(error.StorageError):
+            f.revision(node1, raw=True)
 
         # read() behaves like revision().
-        # TODO this is buggy because of cache interaction.
-        f.read(node1)
+        with self.assertRaises(error.StorageError):
+            f.read(node1)
 
         # We can't test renamed() here because some backends may not require
         # reading/validating the fulltext to return rename metadata.
@@ -931,8 +932,8 @@
         with self.assertRaises(error.StorageError):
             f.read(node1)
 
-        # TODO this should raise error.StorageError.
-        f.read(node1)
+        with self.assertRaises(error.StorageError):
+            f.read(node1)
 
     def testbadnodedelta(self):
         f = self._makefilefn()
@@ -986,7 +987,8 @@
         with self.assertRaises(error.CensoredNodeError):
             f.revision(1)
 
-        self.assertEqual(f.revision(1, raw=True), stored1)
+        with self.assertRaises(error.CensoredNodeError):
+            f.revision(1, raw=True)
 
         with self.assertRaises(error.CensoredNodeError):
             f.read(1)