CheckRecordAndIndex can panic

[ekexium]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

When there are data-index inconsistency, run admin check table.

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

Don't panic.

3. What did you see instead (Required)

TiDB panics.

goroutine 8061 [running]:
github.com/pingcap/tidb/server.(*clientConn).Run.func1(0x6ec37b0, 0xc0024de180, 0xc001942000)
	/Users/ekexium/code/tidb/server/conn.go:918 +0xf5
panic(0x65664c0, 0x89a1110)
	/usr/local/Cellar/go/1.16.5/libexec/src/runtime/panic.go:965 +0x1b9
github.com/pingcap/tidb/executor.(*ExecStmt).Exec.func1(0xc00212e000, 0xc002af0af8, 0xc002af0ad8)
	/Users/ekexium/code/tidb/executor/adapter.go:334 +0x4d4
panic(0x65664c0, 0x89a1110)
	/usr/local/Cellar/go/1.16.5/libexec/src/runtime/panic.go:965 +0x1b9
github.com/pingcap/tidb/util/admin.CheckRecordAndIndex.func1.2(0xc002389200, 0xc0022d6dc0, 0x5, 0x5)
	/Users/ekexium/code/tidb/util/admin/admin.go:384 +0xc2
github.com/pingcap/tidb/util/logutil/consistency.(*Reporter).ReportAdminCheckInconsistent(0xc002389230, 0x6ec37b0, 0xc001d627e0, 0x6ef57b8, 0x87c2330, 0xc002389200, 0xc0023891d0, 0x6ef57b8, 0x87c2330)
	/Users/ekexium/code/tidb/util/logutil/consistency/reporter.go:270 +0xda5
github.com/pingcap/tidb/util/admin.CheckRecordAndIndex.func2(0x6ef57b8, 0x87c2330, 0xc0023601b0, 0x2, 0x2, 0xc0029d7c00, 0x2, 0x2, 0xc00127bd50, 0x89b64c0, ...)
	/Users/ekexium/code/tidb/util/admin/admin.go:424 +0x54b
github.com/pingcap/tidb/util/admin.iterRecords(0x6f0ab38, 0xc0020c8600, 0x9ec7e60, 0xc0020c8610, 0x6efb3b0, 0xc001888000, 0xc001fadcf8, 0x13, 0x13, 0xc0029d7c00, ...)
	/Users/ekexium/code/tidb/util/admin/admin.go:495 +0x8a5
github.com/pingcap/tidb/util/admin.CheckRecordAndIndex(0x6ec37b0, 0xc001d627e0, 0x6f0ab38, 0xc0020c8600, 0x6f06730, 0xc0020c8610, 0x6efb3b0, 0xc001888000, 0x6eec5b8, 0xc0011ab900, ...)
	/Users/ekexium/code/tidb/util/admin/admin.go:436 +0x438
github.com/pingcap/tidb/executor.(*CheckTableExec).checkTableRecord(0xc0021f05a0, 0x6ec37b0, 0xc001d627e0, 0x1, 0xc001ff2240, 0x5)
	/Users/ekexium/code/tidb/executor/executor.go:805 +0x48a
github.com/pingcap/tidb/executor.(*CheckTableExec).Next(0xc0021f05a0, 0x6ec37b0, 0xc001d627e0, 0xc002398dc0, 0x0, 0x0)
	/Users/ekexium/code/tidb/executor/executor.go:762 +0x5e5
github.com/pingcap/tidb/executor.Next(0x6ec37b0, 0xc001d627e0, 0x6ec8178, 0xc0021f05a0, 0xc002398dc0, 0x0, 0x0)
	/Users/ekexium/code/tidb/executor/executor.go:286 +0x2de
github.com/pingcap/tidb/executor.(*ExecStmt).handleNoDelayExecutor(0xc00212e000, 0x6ec37b0, 0xc001d627e0, 0x6ec8178, 0xc0021f05a0, 0x0, 0x0, 0x0, 0x0)
	/Users/ekexium/code/tidb/executor/adapter.go:581 +0x33c
github.com/pingcap/tidb/executor.(*ExecStmt).handleNoDelay(0xc00212e000, 0x6ec37b0, 0xc001d627e0, 0x6ec8178, 0xc0021f05a0, 0x8a3f500, 0x6ec3701, 0x0, 0x0, 0x0, ...)
	/Users/ekexium/code/tidb/executor/adapter.go:462 +0x1e5
github.com/pingcap/tidb/executor.(*ExecStmt).Exec(0xc00212e000, 0x6ec37b0, 0xc001d627e0, 0x0, 0x0, 0x0, 0x0)
	/Users/ekexium/code/tidb/executor/adapter.go:411 +0x78e
github.com/pingcap/tidb/session.runStmt(0x6ec37b0, 0xc001d62450, 0xc0020c8600, 0x6edc910, 0xc00212e000, 0x0, 0x0, 0x0, 0x0)
	/Users/ekexium/code/tidb/session/session.go:1674 +0x37f
github.com/pingcap/tidb/session.(*session).ExecuteStmt(0xc0020c8600, 0x6ec37b0, 0xc001d62450, 0x6ee0248, 0xc001315e40, 0x0, 0x0, 0x0, 0x0)
	/Users/ekexium/code/tidb/session/session.go:1568 +0xb31
github.com/pingcap/tidb/server.(*TiDBContext).ExecuteStmt(0xc0024deb40, 0x6ec37b0, 0xc001d62450, 0x6ee0248, 0xc001315e40, 0xc0021b5da0, 0x6ec37b0, 0xc001d62450, 0xc002af10d0)
	/Users/ekexium/code/tidb/server/driver_tidb.go:219 +0x6b
github.com/pingcap/tidb/server.(*clientConn).handleStmt(0xc001942000, 0x6ec3708, 0xc001d62450, 0x6ee0248, 0xc001315e40, 0x8a72570, 0x0, 0x0, 0x1, 0x0, ...)
	/Users/ekexium/code/tidb/server/conn.go:1843 +0x1d1
github.com/pingcap/tidb/server.(*clientConn).handleQuery(0xc001942000, 0x6ec3708, 0xc002c0e300, 0xc0028d3921, 0x17, 0x0, 0x0)
	/Users/ekexium/code/tidb/server/conn.go:1707 +0x492
github.com/pingcap/tidb/server.(*clientConn).dispatch(0xc001942000, 0x6ec3708, 0xc002c0e300, 0xc0028d3920, 0x18, 0x17, 0x0, 0x0)
	/Users/ekexium/code/tidb/server/conn.go:1217 +0xafd
github.com/pingcap/tidb/server.(*clientConn).Run(0xc001942000, 0x6ec37b0, 0xc0024de180)
	/Users/ekexium/code/tidb/server/conn.go:979 +0x296

4. What is your TiDB version? (Required)

The development branch ft-data-consistency.

[youjiali1995]

Fixed by #29470

[github-actions]

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