为提高效率，请提供以下信息，问题描述清晰能够更快得到解决：
【TiDB 版本】
3.0.5
【问题描述】
tidb循环crash，每次启动后没多久就挂了，一直重复报错
ithub.com/pingcap/errors.AddStack
github.com/pingcap/errors@v0.11.4/errors.go:174
github.com/pingcap/errors.Trace
github.com/pingcap/errors@v0.11.4/juju_adaptor.go:15
github.com/pingcap/tidb/server.(*packetIO).flush
github.com/pingcap/tidb@/server/packetio.go:172
github.com/pingcap/tidb/server.(*clientConn).flush
github.com/pingcap/tidb@/server/conn.go:961
github.com/pingcap/tidb/server.(*clientConn).writeError
github.com/pingcap/tidb@/server/conn.go:1025
github.com/pingcap/tidb/server.(*clientConn).Run
github.com/pingcap/tidb@/server/conn.go:689
github.com/pingcap/tidb/server.(*Server).onConn
github.com/pingcap/tidb@/server/server.go:440
runtime.goexit
runtime/asm_amd64.s:1357
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