Description of problem: OS boot hang because dde-lock lose efficacy when Server is under reboot 1000 cycles test,it is 107 cycles when the problem is appeared. Version-Release number of selected component (if applicable): How reproducible: Install Anolis 8.9,then do reboot 1000 cycles test Steps to Reproduce: 1.Install Anolis 8.9 on TD542F0 2.Use scripts do reboot 1000 cycles test Actual results: OS boot hang when the reboot test is 107 cycles Expected results: the 1000 cycles reboot test is completed and have no problems Additional info: