*: fix data race in the baseTxnContextProvider.ActivateTxn

Signed-off-by: Weizhen Wang <wangweizhen@pingcap.com>
pingcap · Apr 12, 2023 · 762d3f2 · 762d3f2
1 parent 8b7b310
commit 762d3f2
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/sessiontxn/isolation/base.go b/sessiontxn/isolation/base.go
@@ -288,7 +288,9 @@ func (p *baseTxnContextProvider) ActivateTxn() (kv.Transaction, error) {
 	}
 
 	sessVars := p.sctx.GetSessionVars()
+	sessVars.TxnCtxMu.Lock()
 	sessVars.TxnCtx.StartTS = txn.StartTS()
+	sessVars.TxnCtxMu.Unlock()
 	if sessVars.MemDBFootprint != nil {
 		sessVars.MemDBFootprint.Detach()
 	}