This post relates to triggering the generation of the full dump file. Please see below for more details.
1. Log in to the VM as the administrator, run the CMD command and run the following command to set the full dump:
reg add "HKLM\System\CurrentControlSet\Control\Session Manager\Memory Management" /v PagingFiles /t REG_MULTI_SZ /d "C:\pagefile.sys 8392 8392" /f
reg add "HKLM\System\CurrentControlSet\Control\CrashControl" /v DumpFile /t REG_EXPAND_SZ /d "C:\Windows\Memory.dmp" /f
reg add "HKLM\System\CurrentControlSet\Control\CrashControl" /v CrashDumpEnabled /t REG_DWORD /d 1 /f
reg add "HKLM\System\CurrentControlSet\Control\CrashControl" /v NMICrashDump /t REG_DWORD /d 1
2. Log in to the VM using VNC, install the patch and restart the system. If a black screen is displayed again, perform the following steps to trigger a blue screen: Log in to the FusionCompute web client, find the IP address of the CNA host where the VM is located, connect to the host as user gandalf using SSH and switch to user root.
2.1. Run the virsh list command to check the VM ID.
2.2. Run the xenstore-write /local/domain/7/control/sysrq B command to trigger a blue screen of death (BSOD) on the VM. This step automatically collects system error information, which takes a long time. After the collection is complete, the system automatically restarts to the login page.