如果你能在本地复制并使用IDE，我想断点可以帮助你。
但如果没有，我会建议：
1.尝试在上下文中添加超时以避免它永远阻塞
1.在TLS配置中使用InsecureSkipVerify。在我的情况下，它挂起是由于禁用了安全传输层上的传输安全性。

示例：

ctx, cancel := context.WithTimeout(ctx, time.Second*5)
defer cancel()
config := &tls.Config{
  InsecureSkipVerify: true,
}
tlsCredential := credentials.NewTLS(config)
conn, err := grpc.DialContext(ctx, c.tiProxyURL, tlsCredential, grpc.WithBlock(), grpc.WithBackoffMaxDelay(10*time.Second))

**注意：**将InsecureSkipVerify设置为true会带来安全风险。建议仅用于调试目的或仅在可靠的网络上使用。
参考：

// InsecureSkipVerify controls whether a client verifies the server's
    // certificate chain and host name. If InsecureSkipVerify is true, crypto/tls
    // accepts any certificate presented by the server and any host name in that
    // certificate. In this mode, TLS is susceptible to machine-in-the-middle
    // attacks unless custom verification is used. This should be used only for
    // testing or in combination with VerifyConnection or VerifyPeerCertificate.
    InsecureSkipVerify bool