log: Print error message when coindb is in inconsistent state

1 files changed, 3 insertions, 0 deletions

diff --git a/src/txdb.cpp b/src/txdb.cpp
index e5b5e0b8a1..538c4d8f07 100644
--- a/src/txdb.cpp
+++ b/src/txdb.cpp
@@ -123,6 +123,9 @@ bool CCoinsViewDB::BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock, boo
         // We may be in the middle of replaying.
         std::vector<uint256> old_heads = GetHeadBlocks();
         if (old_heads.size() == 2) {
+            if (old_heads[0] != hashBlock) {
+                LogPrintLevel(BCLog::COINDB, BCLog::Level::Error, "The coins database detected an inconsistent state, likely due to a previous crash or shutdown. You will need to restart bitcoind with the -reindex-chainstate or -reindex configuration option.\n");
+            }
             assert(old_heads[0] == hashBlock);
             old_tip = old_heads[1];
         }