diff --git a/src/core.c b/src/core.c
index fb5822a7..db3d080f 100644
--- a/src/core.c
+++ b/src/core.c
@@ -3275,8 +3275,6 @@ static void mdbx_dpl_free(MDBX_txn *txn) {
 }
 
 static MDBX_dpl *mdbx_dpl_reserve(MDBX_txn *txn, size_t size) {
-  mdbx_tassert(txn,
-               txn->tw.dirtylist == NULL || txn->tw.dirtylist->length <= size);
   size_t bytes = dpl2bytes((size < MDBX_PGL_LIMIT) ? size : MDBX_PGL_LIMIT);
   MDBX_dpl *const dl = mdbx_realloc(txn->tw.dirtylist, bytes);
   if (likely(dl)) {
@@ -3291,15 +3289,18 @@ static MDBX_dpl *mdbx_dpl_reserve(MDBX_txn *txn, size_t size) {
 }
 
 static int mdbx_dpl_alloc(MDBX_txn *txn) {
-  mdbx_tassert(txn,
-               (txn->mt_flags & MDBX_TXN_RDONLY) == 0 && !txn->tw.dirtylist);
-  const size_t len = (txn->mt_env->me_options.dp_initial < txn->mt_geo.upper)
-                         ? txn->mt_env->me_options.dp_initial
-                         : txn->mt_geo.upper;
-  MDBX_dpl *const dl = mdbx_dpl_reserve(txn, len);
-  if (unlikely(!dl))
-    return MDBX_ENOMEM;
-  mdbx_dpl_clear(dl);
+  mdbx_tassert(txn, (txn->mt_flags & MDBX_TXN_RDONLY) == 0);
+  const int wanna = (txn->mt_env->me_options.dp_initial < txn->mt_geo.upper)
+                        ? txn->mt_env->me_options.dp_initial
+                        : txn->mt_geo.upper;
+  const int realloc_threshold = 64;
+  if (!txn->tw.dirtylist ||
+      (int)txn->tw.dirtylist->detent - wanna > realloc_threshold ||
+      (int)txn->tw.dirtylist->detent - wanna < -realloc_threshold) {
+    if (unlikely(!mdbx_dpl_reserve(txn, wanna)))
+      return MDBX_ENOMEM;
+  }
+  mdbx_dpl_clear(txn->tw.dirtylist);
   return MDBX_SUCCESS;
 }
 
@@ -7040,8 +7041,6 @@ static int mdbx_txn_renew0(MDBX_txn *txn, const unsigned flags) {
 #if MDBX_ENABLE_REFUND
     txn->tw.loose_refund_wl = 0;
 #endif /* MDBX_ENABLE_REFUND */
-    txn->tw.dirtyroom = txn->mt_env->me_options.dp_limit;
-    mdbx_dpl_clear(txn->tw.dirtylist);
     MDBX_PNL_SIZE(txn->tw.retired_pages) = 0;
     txn->tw.spill_pages = NULL;
     txn->tw.spill_least_removed = 0;
@@ -7055,6 +7054,11 @@ static int mdbx_txn_renew0(MDBX_txn *txn, const unsigned flags) {
     memcpy(txn->mt_dbs, meta->mm_dbs, CORE_DBS * sizeof(MDBX_db));
     /* Moved to here to avoid a data race in read TXNs */
     txn->mt_geo = meta->mm_geo;
+
+    rc = mdbx_dpl_alloc(txn);
+    if (unlikely(rc != MDBX_SUCCESS))
+      goto bailout;
+    txn->tw.dirtyroom = txn->mt_env->me_options.dp_limit;
   }
 
   /* Setup db info */
@@ -7285,6 +7289,7 @@ int mdbx_txn_begin_ex(MDBX_env *env, MDBX_txn *parent, MDBX_txn_flags_t flags,
     mdbx_tassert(parent, mdbx_dirtylist_check(parent));
     txn->tw.cursors = (MDBX_cursor **)(txn->mt_dbs + env->me_maxdbs);
     txn->mt_dbiseqs = parent->mt_dbiseqs;
+    txn->mt_geo = parent->mt_geo;
     rc = mdbx_dpl_alloc(txn);
     if (likely(rc == MDBX_SUCCESS)) {
       const unsigned len =
@@ -7352,7 +7357,6 @@ int mdbx_txn_begin_ex(MDBX_env *env, MDBX_txn *parent, MDBX_txn_flags_t flags,
         (void *)(intptr_t)MDBX_PNL_SIZE(parent->tw.retired_pages);
 
     txn->mt_txnid = parent->mt_txnid;
-    txn->mt_geo = parent->mt_geo;
 #if MDBX_ENABLE_REFUND
     txn->tw.loose_refund_wl = 0;
 #endif /* MDBX_ENABLE_REFUND */
@@ -12025,13 +12029,10 @@ __cold int mdbx_env_open(MDBX_env *env, const char *pathname,
         txn->mt_dbxs = env->me_dbxs;
         txn->mt_flags = MDBX_TXN_FINISHED;
         env->me_txn0 = txn;
-        rc = mdbx_dpl_alloc(txn);
-        if (likely(rc == MDBX_SUCCESS)) {
-          txn->tw.retired_pages = mdbx_pnl_alloc(MDBX_PNL_INITIAL);
-          txn->tw.reclaimed_pglist = mdbx_pnl_alloc(MDBX_PNL_INITIAL);
-          if (unlikely(!txn->tw.retired_pages || !txn->tw.reclaimed_pglist))
-            rc = MDBX_ENOMEM;
-        }
+        txn->tw.retired_pages = mdbx_pnl_alloc(MDBX_PNL_INITIAL);
+        txn->tw.reclaimed_pglist = mdbx_pnl_alloc(MDBX_PNL_INITIAL);
+        if (unlikely(!txn->tw.retired_pages || !txn->tw.reclaimed_pglist))
+          rc = MDBX_ENOMEM;
       } else
         rc = MDBX_ENOMEM;
     }