From c8dccc9bc41c4f1d5ce2a479d3afda5d7a95926b Mon Sep 17 00:00:00 2001
From: Leonid Yuriev <leo@yuriev.ru>
Date: Thu, 11 Feb 2021 15:20:37 +0300
Subject: [PATCH] mdbx: limits the initial size of dpl-list to the current
 db-size.

Change-Id: I5f575fc6168f50786b6f8a82ae020d323530a12e
---
 src/core.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/core.c b/src/core.c
index 046c2fd0..fb5822a7 100644
--- a/src/core.c
+++ b/src/core.c
@@ -3293,8 +3293,10 @@ 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);
-  MDBX_dpl *const dl =
-      mdbx_dpl_reserve(txn, txn->mt_env->me_options.dp_initial);
+  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);