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TiDB panic when running a banking workload #30368

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dbsid opened this issue Dec 3, 2021 · 3 comments
Closed

TiDB panic when running a banking workload #30368

dbsid opened this issue Dec 3, 2021 · 3 comments
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@crazycs520
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found/automation Found by automation tests severity/critical sig/diagnosis SIG: Diagnosis type/bug The issue is confirmed as a bug.

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@dbsid
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dbsid commented Dec 3, 2021

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

run a workload simulation

2. What did you expect to see? (Required)

no tidb panic

3. What did you see instead (Required)

tidb panic

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x1ceb00f]

goroutine 27438774 [running]:
github.com/pingcap/tidb/parser.(*reader).peek(0xc102d29200, 0x0)
	/home/jenkins/agent/workspace/build_tidb_multi_branch_master/go/src/github.com/pingcap/tidb/parser/lexer.go:945 +0x4f
github.com/pingcap/tidb/parser.(*Scanner).scan(0xc102d29200, 0xc102d29200, 0x0, 0x0, 0x0, 0x0, 0x0)
	/home/jenkins/agent/workspace/build_tidb_multi_branch_master/go/src/github.com/pingcap/tidb/parser/lexer.go:305 +0x45
github.com/pingcap/tidb/parser.(*sqlDigester).normalize(0xc03b1a33e0, 0x0, 0x10)
	/home/jenkins/agent/workspace/build_tidb_multi_branch_master/go/src/github.com/pingcap/tidb/parser/digester.go:169 +0xdb
github.com/pingcap/tidb/parser.(*sqlDigester).doNormalizeDigest(0xc03b1a33e0, 0x0, 0x10, 0x0, 0x38db480, 0x5f90520)
	/home/jenkins/agent/workspace/build_tidb_multi_branch_master/go/src/github.com/pingcap/tidb/parser/digester.go:148 +0x45
github.com/pingcap/tidb/parser.NormalizeDigest(0x0, 0x10, 0x61dd108, 0xc1131883f0, 0x203001)
	/home/jenkins/agent/workspace/build_tidb_multi_branch_master/go/src/github.com/pingcap/tidb/parser/digester.go:96 +0x6d
github.com/pingcap/tidb/sessionctx/stmtctx.(*StatementContext).SQLDigest.func1()
	/home/jenkins/agent/workspace/build_tidb_multi_branch_master/go/src/github.com/pingcap/tidb/sessionctx/stmtctx/stmtctx.go:273 +0x46
sync.(*Once).doSlow(0xc0068993d0, 0xc056d032a0)
	/usr/local/go/src/sync/once.go:68 +0xec
sync.(*Once).Do(...)
	/usr/local/go/src/sync/once.go:59
github.com/pingcap/tidb/sessionctx/stmtctx.(*StatementContext).SQLDigest(0xc0068991d8, 0x1ffdaf5, 0xc07648b0e5, 0x5b15c50)
	/home/jenkins/agent/workspace/build_tidb_multi_branch_master/go/src/github.com/pingcap/tidb/sessionctx/stmtctx/stmtctx.go:272 +0x93
github.com/pingcap/tidb/sessionctx/stmtctx.(*StatementContext).GetResourceGroupTagByLabel(0xc0068991d8, 0x2, 0x41, 0x2, 0x0)
	/home/jenkins/agent/workspace/build_tidb_multi_branch_master/go/src/github.com/pingcap/tidb/sessionctx/stmtctx/stmtctx.go:306 +0x34
github.com/pingcap/tidb/sessionctx/stmtctx.(*StatementContext).GetResourceGroupTagger.func1(0xc00505c280)
	/home/jenkins/agent/workspace/build_tidb_multi_branch_master/go/src/github.com/pingcap/tidb/sessionctx/stmtctx/stmtctx.go:296 +0x89
github.com/tikv/client-go/v2/txnkv/transaction.actionCommit.handleSingleBatch(0x0, 0xc09c7c6a80, 0xc0bab787e0, 0xa24, 0x5, 0x291, 0x431d288, 0xc0d7b1b800, 0x0, 0x0, ...)
	/nfs/cache/mod/github.com/tikv/client-go/[email protected]/txnkv/transaction/commit.go:77 +0x21c6
github.com/tikv/client-go/v2/txnkv/transaction.(*batchExecutor).startWorker.func1(0xc01d818400, 0xc0b508b200, 0xa24, 0x5, 0x291, 0x431d288, 0xc0d7b1b800, 0x0)
	/nfs/cache/mod/github.com/tikv/client-go/[email protected]/txnkv/transaction/2pc.go:1804 +0x197
created by github.com/tikv/client-go/v2/txnkv/transaction.(*batchExecutor).startWorker
	/nfs/cache/mod/github.com/tikv/client-go/[email protected]/txnkv/transaction/2pc.go:1787 +0x19e
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x1ceb00f]

goroutine 7215792 [running]:
github.com/pingcap/tidb/parser.(*reader).peek(0xc012937f00, 0x0)
	/home/jenkins/agent/workspace/build_tidb_multi_branch_master/go/src/github.com/pingcap/tidb/parser/lexer.go:945 +0x4f
github.com/pingcap/tidb/parser.(*Scanner).scan(0xc012937f00, 0xc012937f00, 0x0, 0x0, 0x0, 0x0, 0x0)
	/home/jenkins/agent/workspace/build_tidb_multi_branch_master/go/src/github.com/pingcap/tidb/parser/lexer.go:305 +0x45
github.com/pingcap/tidb/parser.(*sqlDigester).normalize(0xc01b9d50e0, 0x0, 0x26)
	/home/jenkins/agent/workspace/build_tidb_multi_branch_master/go/src/github.com/pingcap/tidb/parser/digester.go:169 +0xdb
github.com/pingcap/tidb/parser.(*sqlDigester).doNormalizeDigest(0xc01b9d50e0, 0x0, 0x26, 0x1, 0x38db480, 0x5f90520)
	/home/jenkins/agent/workspace/build_tidb_multi_branch_master/go/src/github.com/pingcap/tidb/parser/digester.go:148 +0x45
github.com/pingcap/tidb/parser.NormalizeDigest(0x0, 0x26, 0x24, 0xc00c3aecc0, 0x203004)
	/home/jenkins/agent/workspace/build_tidb_multi_branch_master/go/src/github.com/pingcap/tidb/parser/digester.go:96 +0x6d
github.com/pingcap/tidb/sessionctx/stmtctx.(*StatementContext).SQLDigest.func1()
	/home/jenkins/agent/workspace/build_tidb_multi_branch_master/go/src/github.com/pingcap/tidb/sessionctx/stmtctx/stmtctx.go:273 +0x46
sync.(*Once).doSlow(0xc00ddc4dd0, 0xc00e6552a0)
	/usr/local/go/src/sync/once.go:68 +0xec
sync.(*Once).Do(...)
	/usr/local/go/src/sync/once.go:59
github.com/pingcap/tidb/sessionctx/stmtctx.(*StatementContext).SQLDigest(0xc00ddc4bd8, 0x1ffdaf5, 0xc01133002d, 0x5b15c50)
	/home/jenkins/agent/workspace/build_tidb_multi_branch_master/go/src/github.com/pingcap/tidb/sessionctx/stmtctx/stmtctx.go:272 +0x93
github.com/pingcap/tidb/sessionctx/stmtctx.(*StatementContext).GetResourceGroupTagByLabel(0xc00ddc4bd8, 0x2, 0x30, 0x2, 0x0)
	/home/jenkins/agent/workspace/build_tidb_multi_branch_master/go/src/github.com/pingcap/tidb/sessionctx/stmtctx/stmtctx.go:306 +0x34
github.com/pingcap/tidb/sessionctx/stmtctx.(*StatementContext).GetResourceGroupTagger.func1(0xc0125b9040)
	/home/jenkins/agent/workspace/build_tidb_multi_branch_master/go/src/github.com/pingcap/tidb/sessionctx/stmtctx/stmtctx.go:296 +0x89
github.com/tikv/client-go/v2/txnkv/transaction.actionCommit.handleSingleBatch(0x0, 0xc01f894c00, 0xc014313050, 0x13b4, 0x5, 0x516, 0x431d288, 0xc00a0d1920, 0x1, 0x0, ...)
	/nfs/cache/mod/github.com/tikv/client-go/[email protected]/txnkv/transaction/commit.go:77 +0x21c6
github.com/tikv/client-go/v2/txnkv/transaction.(*batchExecutor).startWorker.func1(0xc008b90000, 0xc016881d40, 0x13b4, 0x5, 0x516, 0x431d288, 0xc00a0d1920, 0x1)
	/nfs/cache/mod/github.com/tikv/client-go/[email protected]/txnkv/transaction/2pc.go:1804 +0x197
created by github.com/tikv/client-go/v2/txnkv/transaction.(*batchExecutor).startWorker
	/nfs/cache/mod/github.com/tikv/client-go/[email protected]/txnkv/transaction/2pc.go:1787 +0x19e

4. What is your TiDB version? (Required)

| Release Version: v5.4.0-alpha-278-ga04601477
Edition: Community
Git Commit Hash: a04601477600b6804d7a4a2bd31a923bed7817c7
Git Branch: master
UTC Build Time: 2021-12-01 03:36:18
GoVersion: go1.16.4
Race Enabled: false
TiKV Min Version: v3.0.0-60965b006877ca7234adaced7890d7b029ed1306
Check Table Before Drop: false |```
@dbsid dbsid added type/bug The issue is confirmed as a bug. severity/critical found/automation Found by automation tests labels Dec 3, 2021
@zyguan
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zyguan commented Dec 3, 2021

related to #30252

@jebter jebter assigned crazycs520 and unassigned bb7133 Dec 7, 2021
@jebter jebter added the sig/diagnosis SIG: Diagnosis label Dec 7, 2021
@crazycs520
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this should be fix by #30296

@github-actions
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github-actions bot commented Dec 7, 2021

Please check whether the issue should be labeled with 'affects-x.y' or 'fixes-x.y.z', and then remove 'needs-more-info' label.

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@bb7133 @dbsid @jebter @zyguan @crazycs520