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-rw-r--r--core/state/managed_state.go8
1 files changed, 5 insertions, 3 deletions
diff --git a/core/state/managed_state.go b/core/state/managed_state.go
index ad73dc0dc..0d8f9dd28 100644
--- a/core/state/managed_state.go
+++ b/core/state/managed_state.go
@@ -82,10 +82,12 @@ func (ms *ManagedState) NewNonce(addr common.Address) uint64 {
return uint64(len(account.nonces)-1) + account.nstart
}
-// GetNonce returns the canonical nonce for the managed or unmanaged account
+// GetNonce returns the canonical nonce for the managed or unmanaged account.
+//
+// Because GetNonce mutates the DB, we must take a write lock.
func (ms *ManagedState) GetNonce(addr common.Address) uint64 {
- ms.mu.RLock()
- defer ms.mu.RUnlock()
+ ms.mu.Lock()
+ defer ms.mu.Unlock()
if ms.hasAccount(addr) {
account := ms.getAccount(addr)