data race in TestSingleStatementRollback

[zz-jason]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. What did you do?

discovered at https://internal.pingcap.net/idc-jenkins/blue/organizations/jenkins/tidb_ghpr_unit_test/detail/tidb_ghpr_unit_test/7994/pipeline/

2. What did you expect to see?

N/A

3. What did you see instead?

[2019-09-25T11:49:43.766Z] ==================
[2019-09-25T11:49:43.766Z] WARNING: DATA RACE
[2019-09-25T11:49:43.766Z] Read at 0x00c001bc8078 by goroutine 200:
[2019-09-25T11:49:43.766Z]   github.com/pingcap/tidb/store/tikv.(*ttlManager).keepAlive()
[2019-09-25T11:49:43.766Z]       /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/store/tikv/2pc.go:343 +0x6a4
[2019-09-25T11:49:43.766Z] 
[2019-09-25T11:49:43.766Z] Previous write at 0x00c001bc8078 by goroutine 208:
[2019-09-25T11:49:43.766Z]   github.com/pingcap/tidb/store/tikv.(*tikvTxn).LockKeys()
[2019-09-25T11:49:43.766Z]       /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/store/tikv/txn.go:417 +0xe47
[2019-09-25T11:49:43.766Z]   github.com/pingcap/tidb/session.(*TxnState).LockKeys()
[2019-09-25T11:49:43.766Z]       <autogenerated>:1 +0xb1
[2019-09-25T11:49:43.766Z]   github.com/pingcap/tidb/executor.(*ExecStmt).handlePessimisticDML()
[2019-09-25T11:49:43.766Z]       /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/executor/adapter.go:560 +0x318
[2019-09-25T11:49:43.766Z]   github.com/pingcap/tidb/executor.(*ExecStmt).handleNoDelay()
[2019-09-25T11:49:43.766Z]       /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/executor/adapter.go:399 +0x102
[2019-09-25T11:49:43.766Z]   github.com/pingcap/tidb/executor.(*ExecStmt).Exec()
[2019-09-25T11:49:43.766Z]       /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/executor/adapter.go:369 +0x31f
[2019-09-25T11:49:43.766Z]   github.com/pingcap/tidb/session.runStmt()
[2019-09-25T11:49:43.766Z]       /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/session/tidb.go:239 +0x1f9
[2019-09-25T11:49:43.766Z]   github.com/pingcap/tidb/session.(*session).executeStatement()
[2019-09-25T11:49:43.766Z]       /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/session/session.go:1022 +0x203
[2019-09-25T11:49:43.766Z]   github.com/pingcap/tidb/session.(*session).execute()
[2019-09-25T11:49:43.766Z]       /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/session/session.go:1126 +0xaeb
[2019-09-25T11:49:43.766Z]   github.com/pingcap/tidb/session.(*session).Execute()
[2019-09-25T11:49:43.766Z]       /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/session/session.go:1061 +0xd4
[2019-09-25T11:49:43.766Z]   github.com/pingcap/tidb/util/testkit.(*TestKit).Exec()
[2019-09-25T11:49:43.766Z]       /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/util/testkit/testkit.go:144 +0x103
[2019-09-25T11:49:43.766Z]   github.com/pingcap/tidb/util/testkit.(*TestKit).MustExec()
[2019-09-25T11:49:43.766Z]       /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/util/testkit/testkit.go:182 +0x91
[2019-09-25T11:49:43.766Z]   github.com/pingcap/tidb/session_test.(*testPessimisticSuite).TestSingleStatementRollback.func1()
[2019-09-25T11:49:43.766Z]       /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/session/pessimistic_test.go:218 +0x168
[2019-09-25T11:49:43.766Z] 
[2019-09-25T11:49:43.766Z] Goroutine 200 (running) created at:
[2019-09-25T11:49:43.766Z]   github.com/pingcap/tidb/store/tikv.(*ttlManager).run()
[2019-09-25T11:49:43.766Z]       /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/store/tikv/2pc.go:614 +0x80
[2019-09-25T11:49:43.766Z]   github.com/pingcap/tidb/store/tikv.(*twoPhaseCommitter).pessimisticLockSingleBatch()
[2019-09-25T11:49:43.766Z]       /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/store/tikv/2pc.go:717 +0x110f
[2019-09-25T11:49:43.766Z]   github.com/pingcap/tidb/store/tikv.(*twoPhaseCommitter).pessimisticLockSingleBatch-fm()
[2019-09-25T11:49:43.766Z]       /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/store/tikv/2pc.go:670 +0xae
[2019-09-25T11:49:43.766Z]   github.com/pingcap/tidb/store/tikv.(*batchExecutor).startWorker.func1()
[2019-09-25T11:49:43.766Z]       /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/store/tikv/2pc.go:1212 +0x3c5
[2019-09-25T11:49:43.766Z] 
[2019-09-25T11:49:43.766Z] Goroutine 208 (running) created at:
[2019-09-25T11:49:43.766Z]   github.com/pingcap/tidb/session_test.(*testPessimisticSuite).TestSingleStatementRollback()
[2019-09-25T11:49:43.766Z]       /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/session/pessimistic_test.go:214 +0x57d
[2019-09-25T11:49:43.766Z]   github.com/pingcap/tidb/session_test.(*testPessimisticSuite).TestSingleStatementRollback()
[2019-09-25T11:49:43.766Z]       /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/session/pessimistic_test.go:202 +0x285
[2019-09-25T11:49:43.766Z]   github.com/pingcap/tidb/session_test.(*testPessimisticSuite).TestSingleStatementRollback()
[2019-09-25T11:49:43.766Z]       /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/session/pessimistic_test.go:201 +0x24e
[2019-09-25T11:49:43.766Z]   runtime.call32()
[2019-09-25T11:49:43.766Z]       /usr/local/go/src/runtime/asm_amd64.s:519 +0x3a
[2019-09-25T11:49:43.766Z]   reflect.Value.Call()
[2019-09-25T11:49:43.766Z]       /usr/local/go/src/reflect/value.go:308 +0xc0
[2019-09-25T11:49:43.766Z]   github.com/pingcap/check.(*suiteRunner).forkTest.func1()
[2019-09-25T11:49:43.767Z]       /home/jenkins/workspace/tidb_ghpr_unit_test/go/pkg/mod/github.com/pingcap/check@v0.0.0-20190102082844-67f458068fc8/check.go:836 +0x9fc
[2019-09-25T11:49:43.767Z]   github.com/pingcap/check.(*suiteRunner).forkCall.func1()
[2019-09-25T11:49:43.767Z]       /home/jenkins/workspace/tidb_ghpr_unit_test/go/pkg/mod/github.com/pingcap/check@v0.0.0-20190102082844-67f458068fc8/check.go:730 +0xb7
[2019-09-25T11:49:43.767Z] ==================

4. What version of TiDB are you using (tidb-server -V or run select tidb_version(); on TiDB)?

#12336