diff --git a/src/interfaces/wallet.cpp b/src/interfaces/wallet.cpp
index 55a6f771e..703c0811a 100644
--- a/src/interfaces/wallet.cpp
+++ b/src/interfaces/wallet.cpp
@@ -57,7 +57,7 @@ public:
 };
 
 //! Construct wallet tx struct.
-WalletTx MakeWalletTx(CWallet& wallet, const CWalletTx& wtx)
+static WalletTx MakeWalletTx(CWallet& wallet, const CWalletTx& wtx) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 {
     WalletTx result;
     result.tx = wtx.tx;
@@ -85,7 +85,7 @@ WalletTx MakeWalletTx(CWallet& wallet, const CWalletTx& wtx)
 }
 
 //! Construct wallet tx status struct.
-WalletTxStatus MakeWalletTxStatus(const CWalletTx& wtx)
+static WalletTxStatus MakeWalletTxStatus(const CWalletTx& wtx) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 {
     WalletTxStatus result;
     auto mi = ::mapBlockIndex.find(wtx.hashBlock);
@@ -104,7 +104,7 @@ WalletTxStatus MakeWalletTxStatus(const CWalletTx& wtx)
 }
 
 //! Construct wallet TxOut struct.
-WalletTxOut MakeWalletTxOut(CWallet& wallet, const CWalletTx& wtx, int n, int depth)
+static WalletTxOut MakeWalletTxOut(CWallet& wallet, const CWalletTx& wtx, int n, int depth) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 {
     WalletTxOut result;
     result.txout = wtx.tx->vout[n];
diff --git a/src/net_processing.cpp b/src/net_processing.cpp
index 758422c68..a6a8814df 100644
--- a/src/net_processing.cpp
+++ b/src/net_processing.cpp
@@ -442,7 +442,7 @@ static void UpdateBlockAvailability(NodeId nodeid, const uint256 &hash) EXCLUSIV
  * lNodesAnnouncingHeaderAndIDs, and keeping that list under a certain size by
  * removing the first element if necessary.
  */
-static void MaybeSetPeerAsAnnouncingHeaderAndIDs(NodeId nodeid, CConnman* connman)
+static void MaybeSetPeerAsAnnouncingHeaderAndIDs(NodeId nodeid, CConnman* connman) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 {
     AssertLockHeld(cs_main);
     CNodeState* nodestate = State(nodeid);
@@ -831,7 +831,7 @@ void Misbehaving(NodeId pnode, int howmuch, const std::string& message) EXCLUSIV
 // active chain if they are no more than a month older (both in time, and in
 // best equivalent proof of work) than the best header chain we know about and
 // we fully-validated them at some point.
-static bool BlockRequestAllowed(const CBlockIndex* pindex, const Consensus::Params& consensusParams)
+static bool BlockRequestAllowed(const CBlockIndex* pindex, const Consensus::Params& consensusParams) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 {
     AssertLockHeld(cs_main);
     if (chainActive.Contains(pindex)) return true;
@@ -1260,7 +1260,7 @@ void static ProcessGetBlockData(CNode* pfrom, const CChainParams& chainparams, c
     }
 }
 
-void static ProcessGetData(CNode* pfrom, const CChainParams& chainparams, CConnman* connman, const std::atomic<bool>& interruptMsgProc)
+void static ProcessGetData(CNode* pfrom, const CChainParams& chainparams, CConnman* connman, const std::atomic<bool>& interruptMsgProc) LOCKS_EXCLUDED(cs_main)
 {
     AssertLockNotHeld(cs_main);
 
@@ -2925,7 +2925,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
     return true;
 }
 
-static bool SendRejectsAndCheckIfBanned(CNode* pnode, CConnman* connman, bool enable_bip61)
+static bool SendRejectsAndCheckIfBanned(CNode* pnode, CConnman* connman, bool enable_bip61) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 {
     AssertLockHeld(cs_main);
     CNodeState &state = *State(pnode->GetId());
diff --git a/src/net_processing.h b/src/net_processing.h
index 7caefc80c..f16d00032 100644
--- a/src/net_processing.h
+++ b/src/net_processing.h
@@ -61,7 +61,7 @@ public:
     bool SendMessages(CNode* pto) override EXCLUSIVE_LOCKS_REQUIRED(pto->cs_sendProcessing);
 
     /** Consider evicting an outbound peer based on the amount of time they've been behind our tip */
-    void ConsiderEviction(CNode *pto, int64_t time_in_seconds);
+    void ConsiderEviction(CNode *pto, int64_t time_in_seconds) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
     /** Evict extra outbound peers. If we think our tip may be stale, connect to an extra outbound */
     void CheckForStaleTipAndEvictPeers(const Consensus::Params &consensusParams);
     /** If we have extra outbound peers, try to disconnect the one with the oldest block announcement */
diff --git a/src/test/miner_tests.cpp b/src/test/miner_tests.cpp
index 2da06b8d3..2b9641b6d 100644
--- a/src/test/miner_tests.cpp
+++ b/src/test/miner_tests.cpp
@@ -90,7 +90,7 @@ static CBlockIndex CreateBlockIndex(int nHeight)
     return index;
 }
 
-static bool TestSequenceLocks(const CTransaction &tx, int flags)
+static bool TestSequenceLocks(const CTransaction &tx, int flags) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 {
     LOCK(mempool.cs);
     return CheckSequenceLocks(tx, flags);
diff --git a/src/txmempool.cpp b/src/txmempool.cpp
index 8bada4dce..8285fd0c4 100644
--- a/src/txmempool.cpp
+++ b/src/txmempool.cpp
@@ -497,7 +497,7 @@ void CTxMemPool::removeRecursive(const CTransaction &origTx, MemPoolRemovalReaso
     }
 }
 
-void CTxMemPool::removeForReorg(const CCoinsViewCache *pcoins, unsigned int nMemPoolHeight, int flags)
+void CTxMemPool::removeForReorg(const CCoinsViewCache *pcoins, unsigned int nMemPoolHeight, int flags) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 {
     // Remove transactions spending a coinbase which are now immature and no-longer-final transactions
     LOCK(cs);
diff --git a/src/validation.cpp b/src/validation.cpp
index fceb13585..3e51221a5 100644
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -170,7 +170,7 @@ public:
     // Block (dis)connection on a given view:
     DisconnectResult DisconnectBlock(const CBlock& block, const CBlockIndex* pindex, CCoinsViewCache& view);
     bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pindex,
-                    CCoinsViewCache& view, const CChainParams& chainparams, bool fJustCheck = false);
+                      CCoinsViewCache& view, const CChainParams& chainparams, bool fJustCheck = false) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
 
     // Block disconnection on our pcoinsTip:
     bool DisconnectTip(CValidationState& state, const CChainParams& chainparams, DisconnectedBlockTransactions *disconnectpool);
@@ -189,8 +189,8 @@ public:
     void UnloadBlockIndex();
 
 private:
-    bool ActivateBestChainStep(CValidationState& state, const CChainParams& chainparams, CBlockIndex* pindexMostWork, const std::shared_ptr<const CBlock>& pblock, bool& fInvalidFound, ConnectTrace& connectTrace);
-    bool ConnectTip(CValidationState& state, const CChainParams& chainparams, CBlockIndex* pindexNew, const std::shared_ptr<const CBlock>& pblock, ConnectTrace& connectTrace, DisconnectedBlockTransactions &disconnectpool);
+    bool ActivateBestChainStep(CValidationState& state, const CChainParams& chainparams, CBlockIndex* pindexMostWork, const std::shared_ptr<const CBlock>& pblock, bool& fInvalidFound, ConnectTrace& connectTrace) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
+    bool ConnectTip(CValidationState& state, const CChainParams& chainparams, CBlockIndex* pindexNew, const std::shared_ptr<const CBlock>& pblock, ConnectTrace& connectTrace, DisconnectedBlockTransactions &disconnectpool) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
 
     CBlockIndex* AddToBlockIndex(const CBlockHeader& block) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
     /** Create a new block index entry for a given block hash */
@@ -202,7 +202,7 @@ private:
      */
     void CheckBlockIndex(const Consensus::Params& consensusParams);
 
-    void InvalidBlockFound(CBlockIndex *pindex, const CValidationState &state);
+    void InvalidBlockFound(CBlockIndex *pindex, const CValidationState &state) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
     CBlockIndex* FindMostWorkChain() EXCLUSIVE_LOCKS_REQUIRED(cs_main);
     void ReceivedBlockTransactions(const CBlock& block, CBlockIndex* pindexNew, const CDiskBlockPos& pos, const Consensus::Params& consensusParams) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
 
@@ -457,7 +457,7 @@ std::string FormatStateMessage(const CValidationState &state)
         state.GetRejectCode());
 }
 
-static bool IsCurrentForFeeEstimation()
+static bool IsCurrentForFeeEstimation() EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 {
     AssertLockHeld(cs_main);
     if (IsInitialBlockDownload())
@@ -482,7 +482,7 @@ static bool IsCurrentForFeeEstimation()
  * and instead just erase from the mempool as needed.
  */
 
-static void UpdateMempoolForReorg(DisconnectedBlockTransactions &disconnectpool, bool fAddToMempool)
+static void UpdateMempoolForReorg(DisconnectedBlockTransactions &disconnectpool, bool fAddToMempool) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 {
     AssertLockHeld(cs_main);
     std::vector<uint256> vHashUpdate;
@@ -524,7 +524,7 @@ static void UpdateMempoolForReorg(DisconnectedBlockTransactions &disconnectpool,
 // Used to avoid mempool polluting consensus critical paths if CCoinsViewMempool
 // were somehow broken and returning the wrong scriptPubKeys
 static bool CheckInputsFromMempoolAndCache(const CTransaction& tx, CValidationState& state, const CCoinsViewCache& view, const CTxMemPool& pool,
-                 unsigned int flags, bool cacheSigStore, PrecomputedTransactionData& txdata) {
+                 unsigned int flags, bool cacheSigStore, PrecomputedTransactionData& txdata) EXCLUSIVE_LOCKS_REQUIRED(cs_main) {
     AssertLockHeld(cs_main);
 
     // pool.cs should be locked already, but go ahead and re-take the lock here
@@ -559,7 +559,7 @@ static bool CheckInputsFromMempoolAndCache(const CTransaction& tx, CValidationSt
 
 static bool AcceptToMemoryPoolWorker(const CChainParams& chainparams, CTxMemPool& pool, CValidationState& state, const CTransactionRef& ptx,
                               bool* pfMissingInputs, int64_t nAcceptTime, std::list<CTransactionRef>* plTxnReplaced,
-                              bool bypass_limits, const CAmount& nAbsurdFee, std::vector<COutPoint>& coins_to_uncache, bool test_accept)
+                              bool bypass_limits, const CAmount& nAbsurdFee, std::vector<COutPoint>& coins_to_uncache, bool test_accept) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 {
     const CTransaction& tx = *ptx;
     const uint256 hash = tx.GetHash();
@@ -977,7 +977,7 @@ static bool AcceptToMemoryPoolWorker(const CChainParams& chainparams, CTxMemPool
 /** (try to) add transaction to memory pool with a specified acceptance time **/
 static bool AcceptToMemoryPoolWithTime(const CChainParams& chainparams, CTxMemPool& pool, CValidationState &state, const CTransactionRef &tx,
                         bool* pfMissingInputs, int64_t nAcceptTime, std::list<CTransactionRef>* plTxnReplaced,
-                        bool bypass_limits, const CAmount nAbsurdFee, bool test_accept)
+                        bool bypass_limits, const CAmount nAbsurdFee, bool test_accept) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 {
     std::vector<COutPoint> coins_to_uncache;
     bool res = AcceptToMemoryPoolWorker(chainparams, pool, state, tx, pfMissingInputs, nAcceptTime, plTxnReplaced, bypass_limits, nAbsurdFee, coins_to_uncache, test_accept);
@@ -1216,7 +1216,7 @@ static void AlertNotify(const std::string& strMessage)
     t.detach(); // thread runs free
 }
 
-static void CheckForkWarningConditions()
+static void CheckForkWarningConditions() EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 {
     AssertLockHeld(cs_main);
     // Before we get past initial download, we cannot reliably alert about forks
@@ -1257,7 +1257,7 @@ static void CheckForkWarningConditions()
     }
 }
 
-static void CheckForkWarningConditionsOnNewFork(CBlockIndex* pindexNewForkTip)
+static void CheckForkWarningConditionsOnNewFork(CBlockIndex* pindexNewForkTip) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 {
     AssertLockHeld(cs_main);
     // If we are on a fork that is sufficiently large, set a warning flag
@@ -1290,7 +1290,7 @@ static void CheckForkWarningConditionsOnNewFork(CBlockIndex* pindexNewForkTip)
     CheckForkWarningConditions();
 }
 
-void static InvalidChainFound(CBlockIndex* pindexNew)
+void static InvalidChainFound(CBlockIndex* pindexNew) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 {
     if (!pindexBestInvalid || pindexNew->nChainWork > pindexBestInvalid->nChainWork)
         pindexBestInvalid = pindexNew;
@@ -1377,7 +1377,7 @@ void InitScriptExecutionCache() {
  *
  * Non-static (and re-declared) in src/test/txvalidationcache_tests.cpp
  */
-bool CheckInputs(const CTransaction& tx, CValidationState &state, const CCoinsViewCache &inputs, bool fScriptChecks, unsigned int flags, bool cacheSigStore, bool cacheFullScriptStore, PrecomputedTransactionData& txdata, std::vector<CScriptCheck> *pvChecks)
+bool CheckInputs(const CTransaction& tx, CValidationState &state, const CCoinsViewCache &inputs, bool fScriptChecks, unsigned int flags, bool cacheSigStore, bool cacheFullScriptStore, PrecomputedTransactionData& txdata, std::vector<CScriptCheck> *pvChecks) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 {
     if (!tx.IsCoinBase())
     {
@@ -1743,7 +1743,7 @@ static bool IsScriptWitnessEnabled(const Consensus::Params& params)
     return params.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout != 0;
 }
 
-static unsigned int GetBlockScriptFlags(const CBlockIndex* pindex, const Consensus::Params& consensusparams) {
+static unsigned int GetBlockScriptFlags(const CBlockIndex* pindex, const Consensus::Params& consensusparams) EXCLUSIVE_LOCKS_REQUIRED(cs_main) {
     AssertLockHeld(cs_main);
 
     unsigned int flags = SCRIPT_VERIFY_NONE;
@@ -2863,6 +2863,7 @@ bool CChainState::InvalidateBlock(CValidationState& state, const CChainParams& c
     }
     return true;
 }
+
 bool InvalidateBlock(CValidationState& state, const CChainParams& chainparams, CBlockIndex *pindex) {
     return g_chainstate.InvalidateBlock(state, chainparams, pindex);
 }
diff --git a/src/validation.h b/src/validation.h
index 4965ff152..c4c9b8b5b 100644
--- a/src/validation.h
+++ b/src/validation.h
@@ -302,7 +302,7 @@ void PruneBlockFilesManual(int nManualPruneHeight);
  * plTxnReplaced will be appended to with all transactions replaced from mempool **/
 bool AcceptToMemoryPool(CTxMemPool& pool, CValidationState &state, const CTransactionRef &tx,
                         bool* pfMissingInputs, std::list<CTransactionRef>* plTxnReplaced,
-                        bool bypass_limits, const CAmount nAbsurdFee, bool test_accept=false);
+                        bool bypass_limits, const CAmount nAbsurdFee, bool test_accept=false) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
 
 /** Convert CValidationState to a human-readable message for logging */
 std::string FormatStateMessage(const CValidationState &state);
@@ -329,12 +329,12 @@ void UpdateCoins(const CTransaction& tx, CCoinsViewCache& inputs, int nHeight);
  *
  * See consensus/consensus.h for flag definitions.
  */
-bool CheckFinalTx(const CTransaction &tx, int flags = -1);
+bool CheckFinalTx(const CTransaction &tx, int flags = -1) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
 
 /**
  * Test whether the LockPoints height and time are still valid on the current chain
  */
-bool TestLockPointValidity(const LockPoints* lp);
+bool TestLockPointValidity(const LockPoints* lp) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
 
 /**
  * Check if transaction will be BIP 68 final in the next block to be created.
@@ -347,7 +347,7 @@ bool TestLockPointValidity(const LockPoints* lp);
  *
  * See consensus/consensus.h for flag definitions.
  */
-bool CheckSequenceLocks(const CTransaction &tx, int flags, LockPoints* lp = nullptr, bool useExistingLockPoints = false);
+bool CheckSequenceLocks(const CTransaction &tx, int flags, LockPoints* lp = nullptr, bool useExistingLockPoints = false) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
 
 /**
  * Closure representing one script verification
diff --git a/src/validationinterface.cpp b/src/validationinterface.cpp
index 248e774a8..e25eca236 100644
--- a/src/validationinterface.cpp
+++ b/src/validationinterface.cpp
@@ -7,7 +7,6 @@
 
 #include <primitives/block.h>
 #include <scheduler.h>
-#include <sync.h>
 #include <txmempool.h>
 #include <util.h>
 #include <validation.h>
diff --git a/src/validationinterface.h b/src/validationinterface.h
index 6e96755ea..f0374e8e7 100644
--- a/src/validationinterface.h
+++ b/src/validationinterface.h
@@ -7,10 +7,12 @@
 #define BITCOIN_VALIDATIONINTERFACE_H
 
 #include <primitives/transaction.h> // CTransaction(Ref)
+#include <sync.h>
 
 #include <functional>
 #include <memory>
 
+extern CCriticalSection cs_main;
 class CBlock;
 class CBlockIndex;
 struct CBlockLocator;
@@ -51,7 +53,7 @@ void CallFunctionInValidationInterfaceQueue(std::function<void ()> func);
  *     });
  *     promise.get_future().wait();
  */
-void SyncWithValidationInterfaceQueue();
+void SyncWithValidationInterfaceQueue() LOCKS_EXCLUDED(cs_main);
 
 /**
  * Implement this to subscribe to events generated in validation
diff --git a/src/wallet/feebumper.cpp b/src/wallet/feebumper.cpp
index d5d402130..2b8a0f646 100644
--- a/src/wallet/feebumper.cpp
+++ b/src/wallet/feebumper.cpp
@@ -18,7 +18,7 @@
 
 //! Check whether transaction has descendant in wallet or mempool, or has been
 //! mined, or conflicts with a mined transaction. Return a feebumper::Result.
-static feebumper::Result PreconditionChecks(const CWallet* wallet, const CWalletTx& wtx, std::vector<std::string>& errors) EXCLUSIVE_LOCKS_REQUIRED(wallet->cs_wallet)
+static feebumper::Result PreconditionChecks(const CWallet* wallet, const CWalletTx& wtx, std::vector<std::string>& errors) EXCLUSIVE_LOCKS_REQUIRED(cs_main, wallet->cs_wallet)
 {
     if (wallet->HasWalletSpend(wtx.GetHash())) {
         errors.push_back("Transaction has descendants in the wallet");
diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp
index 0f55ef20a..79a99ade8 100644
--- a/src/wallet/rpcwallet.cpp
+++ b/src/wallet/rpcwallet.cpp
@@ -89,7 +89,7 @@ void EnsureWalletIsUnlocked(CWallet * const pwallet)
     }
 }
 
-static void WalletTxToJSON(const CWalletTx& wtx, UniValue& entry)
+static void WalletTxToJSON(const CWalletTx& wtx, UniValue& entry) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 {
     int confirms = wtx.GetDepthInMainChain();
     entry.pushKV("confirmations", confirms);
@@ -1526,7 +1526,7 @@ struct tallyitem
     }
 };
 
-static UniValue ListReceived(CWallet * const pwallet, const UniValue& params, bool by_label)
+static UniValue ListReceived(CWallet * const pwallet, const UniValue& params, bool by_label) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 {
     // Minimum confirmations
     int nMinDepth = 1;
@@ -1793,7 +1793,7 @@ static void MaybePushAddress(UniValue & entry, const CTxDestination &dest)
  * @param  ret        The UniValue into which the result is stored.
  * @param  filter     The "is mine" filter bool.
  */
-static void ListTransactions(CWallet* const pwallet, const CWalletTx& wtx, const std::string& strAccount, int nMinDepth, bool fLong, UniValue& ret, const isminefilter& filter)
+static void ListTransactions(CWallet* const pwallet, const CWalletTx& wtx, const std::string& strAccount, int nMinDepth, bool fLong, UniValue& ret, const isminefilter& filter) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 {
     CAmount nFee;
     std::string strSentAccount;
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index d0857bcb7..e7cdbd372 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -4410,7 +4410,7 @@ bool CMerkleTx::IsImmatureCoinBase() const
     return GetBlocksToMaturity() > 0;
 }
 
-bool CWalletTx::AcceptToMemoryPool(const CAmount& nAbsurdFee, CValidationState& state)
+bool CWalletTx::AcceptToMemoryPool(const CAmount& nAbsurdFee, CValidationState& state) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 {
     // We must set fInMempool here - while it will be re-set to true by the
     // entered-mempool callback, if we did not there would be a race where a
diff --git a/src/wallet/wallet.h b/src/wallet/wallet.h
index c085c004b..51ac3df71 100644
--- a/src/wallet/wallet.h
+++ b/src/wallet/wallet.h
@@ -264,22 +264,22 @@ public:
      *  0  : in memory pool, waiting to be included in a block
      * >=1 : this many blocks deep in the main chain
      */
-    int GetDepthInMainChain() const;
-    bool IsInMainChain() const { return GetDepthInMainChain() > 0; }
+    int GetDepthInMainChain() const EXCLUSIVE_LOCKS_REQUIRED(cs_main);
+    bool IsInMainChain() const EXCLUSIVE_LOCKS_REQUIRED(cs_main) { return GetDepthInMainChain() > 0; }
 
     /**
      * @return number of blocks to maturity for this transaction:
      *  0 : is not a coinbase transaction, or is a mature coinbase transaction
      * >0 : is a coinbase transaction which matures in this many blocks
      */
-    int GetBlocksToMaturity() const;
+    int GetBlocksToMaturity() const EXCLUSIVE_LOCKS_REQUIRED(cs_main);
     bool hashUnset() const { return (hashBlock.IsNull() || hashBlock == ABANDON_HASH); }
     bool isAbandoned() const { return (hashBlock == ABANDON_HASH); }
     void setAbandoned() { hashBlock = ABANDON_HASH; }
 
     const uint256& GetHash() const { return tx->GetHash(); }
     bool IsCoinBase() const { return tx->IsCoinBase(); }
-    bool IsImmatureCoinBase() const;
+    bool IsImmatureCoinBase() const EXCLUSIVE_LOCKS_REQUIRED(cs_main);
 };
 
 //Get the marginal bytes of spending the specified output
@@ -461,10 +461,10 @@ public:
 
     //! filter decides which addresses will count towards the debit
     CAmount GetDebit(const isminefilter& filter) const;
-    CAmount GetCredit(const isminefilter& filter) const;
-    CAmount GetImmatureCredit(bool fUseCache=true) const;
-    CAmount GetAvailableCredit(bool fUseCache=true, const isminefilter& filter=ISMINE_SPENDABLE) const;
-    CAmount GetImmatureWatchOnlyCredit(const bool fUseCache=true) const;
+    CAmount GetCredit(const isminefilter& filter) const EXCLUSIVE_LOCKS_REQUIRED(cs_main);
+    CAmount GetImmatureCredit(bool fUseCache=true) const EXCLUSIVE_LOCKS_REQUIRED(cs_main);
+    CAmount GetAvailableCredit(bool fUseCache=true, const isminefilter& filter=ISMINE_SPENDABLE) const EXCLUSIVE_LOCKS_REQUIRED(cs_main);
+    CAmount GetImmatureWatchOnlyCredit(const bool fUseCache=true) const EXCLUSIVE_LOCKS_REQUIRED(cs_main);
     CAmount GetChange() const;
 
     // Get the marginal bytes if spending the specified output from this transaction
@@ -485,15 +485,15 @@ public:
     bool IsEquivalentTo(const CWalletTx& tx) const;
 
     bool InMempool() const;
-    bool IsTrusted() const;
+    bool IsTrusted() const EXCLUSIVE_LOCKS_REQUIRED(cs_main);
 
     int64_t GetTxTime() const;
 
     // RelayWalletTransaction may only be called if fBroadcastTransactions!
-    bool RelayWalletTransaction(CConnman* connman);
+    bool RelayWalletTransaction(CConnman* connman) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
 
     /** Pass this transaction to the mempool. Fails if absolute fee exceeds absurd fee. */
-    bool AcceptToMemoryPool(const CAmount& nAbsurdFee, CValidationState& state);
+    bool AcceptToMemoryPool(const CAmount& nAbsurdFee, CValidationState& state) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
 
     std::set<uint256> GetConflicts() const;
 };
@@ -847,7 +847,7 @@ public:
     /**
      * populate vCoins with vector of available COutputs.
      */
-    void AvailableCoins(std::vector<COutput>& vCoins, bool fOnlySafe=true, const CCoinControl *coinControl = nullptr, const CAmount& nMinimumAmount = 1, const CAmount& nMaximumAmount = MAX_MONEY, const CAmount& nMinimumSumAmount = MAX_MONEY, const uint64_t nMaximumCount = 0, const int nMinDepth = 0, const int nMaxDepth = 9999999) const EXCLUSIVE_LOCKS_REQUIRED(cs_wallet);
+    void AvailableCoins(std::vector<COutput>& vCoins, bool fOnlySafe=true, const CCoinControl *coinControl = nullptr, const CAmount& nMinimumAmount = 1, const CAmount& nMaximumAmount = MAX_MONEY, const CAmount& nMinimumSumAmount = MAX_MONEY, const uint64_t nMaximumCount = 0, const int nMinDepth = 0, const int nMaxDepth = 9999999) const EXCLUSIVE_LOCKS_REQUIRED(cs_main, cs_wallet);
 
     /**
      * Return list of available coins and locked coins grouped by non-change output address.
@@ -868,7 +868,7 @@ public:
     bool SelectCoinsMinConf(const CAmount& nTargetValue, const CoinEligibilityFilter& eligibility_filter, std::vector<OutputGroup> groups,
         std::set<CInputCoin>& setCoinsRet, CAmount& nValueRet, const CoinSelectionParams& coin_selection_params, bool& bnb_used) const;
 
-    bool IsSpent(const uint256& hash, unsigned int n) const;
+    bool IsSpent(const uint256& hash, unsigned int n) const EXCLUSIVE_LOCKS_REQUIRED(cs_main);
     std::vector<OutputGroup> GroupOutputs(const std::vector<COutput>& outputs, bool single_coin) const;
 
     bool IsLockedCoin(uint256 hash, unsigned int n) const EXCLUSIVE_LOCKS_REQUIRED(cs_wallet);
@@ -954,9 +954,9 @@ public:
     CBlockIndex* ScanForWalletTransactions(CBlockIndex* pindexStart, CBlockIndex* pindexStop, const WalletRescanReserver& reserver, bool fUpdate = false);
     void TransactionRemovedFromMempool(const CTransactionRef &ptx) override;
     void ReacceptWalletTransactions();
-    void ResendWalletTransactions(int64_t nBestBlockTime, CConnman* connman) override;
+    void ResendWalletTransactions(int64_t nBestBlockTime, CConnman* connman) override EXCLUSIVE_LOCKS_REQUIRED(cs_main);
     // ResendWalletTransactionsBefore may only be called if fBroadcastTransactions!
-    std::vector<uint256> ResendWalletTransactionsBefore(int64_t nTime, CConnman* connman);
+    std::vector<uint256> ResendWalletTransactionsBefore(int64_t nTime, CConnman* connman) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
     CAmount GetBalance(const isminefilter& filter=ISMINE_SPENDABLE, const int min_depth=0) const;
     CAmount GetUnconfirmedBalance() const;
     CAmount GetImmatureBalance() const;
@@ -1041,7 +1041,7 @@ public:
     const std::map<CKeyID, int64_t>& GetAllReserveKeys() const { return m_pool_key_to_index; }
 
     std::set<std::set<CTxDestination>> GetAddressGroupings() EXCLUSIVE_LOCKS_REQUIRED(cs_wallet);
-    std::map<CTxDestination, CAmount> GetAddressBalances();
+    std::map<CTxDestination, CAmount> GetAddressBalances() EXCLUSIVE_LOCKS_REQUIRED(cs_main);
 
     std::set<CTxDestination> GetLabelAddresses(const std::string& label) const;
     void DeleteLabel(const std::string& label);
@@ -1180,7 +1180,7 @@ public:
      * Obviously holding cs_main/cs_wallet when going into this call may cause
      * deadlock
      */
-    void BlockUntilSyncedToCurrentChain() LOCKS_EXCLUDED(cs_wallet);
+    void BlockUntilSyncedToCurrentChain() LOCKS_EXCLUDED(cs_main, cs_wallet);
 
     /**
      * Explicitly make the wallet learn the related scripts for outputs to the