diff --git a/src/core.c b/src/core.c
index 8fe79d12..f9c1063e 100644
--- a/src/core.c
+++ b/src/core.c
@@ -11427,9 +11427,10 @@ __hot static int mdbx_page_get(MDBX_cursor *mc, pgno_t pgno, MDBX_page **ret,
   MDBX_page *p = nullptr;
   mdbx_assert(env, ((txn->mt_flags ^ env->me_flags) & MDBX_WRITEMAP) == 0);
   mdbx_assert(env, pp_txnid >= MIN_TXNID && pp_txnid <= txn->mt_txnid);
-  const uint16_t illegal_bits = (txn->mt_flags & MDBX_TXN_RDONLY)
-                                    ? P_LOOSE | P_SUBP | P_META | P_DIRTY
-                                    : P_LOOSE | P_SUBP | P_META;
+  const uint16_t illegal_bits =
+      (txn->mt_flags & MDBX_TXN_RDONLY)
+          ? ~(P_BRANCH | P_LEAF | P_LEAF2 | P_OVERFLOW)
+          : ~(P_BRANCH | P_LEAF | P_LEAF2 | P_OVERFLOW | P_DIRTY);
   int level;
   if (unlikely((txn->mt_flags & (MDBX_TXN_RDONLY | MDBX_WRITEMAP)) == 0)) {
     level = 1;
@@ -11438,7 +11439,7 @@ __hot static int mdbx_page_get(MDBX_cursor *mc, pgno_t pgno, MDBX_page **ret,
        * because the dirty list got full. Bring this page
        * back in from the map (but don't unspill it here,
        * leave that unless page_touch happens again). */
-      if (txn->tw.spill_pages &&
+      if (unlikely(txn->mt_flags & MDBX_TXN_SPILLS) && txn->tw.spill_pages &&
           mdbx_pnl_exist(txn->tw.spill_pages, pgno << 1)) {
         pp_txnid = txn->mt_txnid;
         goto spilled;