1.mount 1 MDT and 4 OSTs on the Lustre Server1.
2.mount 4 OSTs on the Lustre Server2.
3.Config Lustre failover between the 2 Lustre Servers.
4.mount the Lustre File System on the Lustre Client.
5.Write and Read datas on the Lustre Client.
6.At the same time, test the Failover function between the 2 Lustre Servers in turn.
7.Run the step5 and step6 two days ,the client Server crash unexpected.
8.Part of the call trace infomation was shown at the attachmet.