From a600c2a7a23021a4bc1d065773a1468ea63f4ef3 Mon Sep 17 00:00:00 2001
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 =?UTF-8?q?=D0=B5=D0=B2=20=28Leonid=20Yuriev=29?= <leo@yuriev.ru>
Date: Wed, 25 Jun 2025 12:27:39 +0300
Subject: [PATCH] =?UTF-8?q?mdbx:=20=D1=83=D1=81=D1=82=D1=80=D0=B0=D0=BD?=
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---
 src/gc-get.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/gc-get.c b/src/gc-get.c
index 8ae8d1dd..1760590b 100644
--- a/src/gc-get.c
+++ b/src/gc-get.c
@@ -1086,6 +1086,7 @@ next_gc:
   }
   eASSERT(env, pnl_check_allocated(txn->wr.repnl, txn->geo.first_unallocated - MDBX_ENABLE_REFUND));
 
+  eASSERT(env, op == MDBX_PREV || op == MDBX_NEXT);
   rkl_t *rkl = &txn->wr.gc.reclaimed;
   const char *rkl_name = "reclaimed";
   if (mc->dbi_state != txn->dbi_state &&
@@ -1095,6 +1096,11 @@ next_gc:
     ret.err = cursor_del(gc, 0);
     txn->cursors[FREE_DBI] = gc->next;
     if (likely(ret.err == MDBX_SUCCESS)) {
+      if (unlikely(txn->dbs[FREE_DBI].items == 0)) {
+        flags &= ~ALLOC_COALESCE;
+        txn->flags |= txn_gc_drained;
+        op = MDBX_FIRST; /* для предотвращения ошибок из-за относительного перемещения курсора */
+      }
       rkl = &txn->wr.gc.ready4reuse;
       rkl_name = "ready4reuse";
     } else {
@@ -1109,8 +1115,8 @@ next_gc:
   if (unlikely(ret.err != MDBX_SUCCESS))
     goto fail;
 
-  eASSERT(env, op == MDBX_PREV || op == MDBX_NEXT);
   if (flags & ALLOC_COALESCE) {
+    eASSERT(env, op == MDBX_PREV || op == MDBX_NEXT);
     if (pnl_size(txn->wr.repnl) < env->maxgc_large1page / 2) {
       TRACE("%s: last id #%" PRIaTXN ", re-len %zu", "coalesce-continue", id, pnl_size(txn->wr.repnl));
       goto next_gc;