The computer freezes after starting hv

[LYingSiMon]

Hi, I am having a problem when I use vmware, after installing hv, the system is stuck（windbg not working either）。Soon after, vmware automatically rebooted the system, I cannot provide dump files because there is no bsod。

This is my environment： cpu：i9 13900k system：win10 1903

I also tested it on 1909, and it jammed the system, but the phenomenon was slightly different, the 1909 phenomenon was the system black screen and kept flashing.

this is hv's log：

行 1016: [hv] Driver loaded.
行 1018: hv!driver_entry+0x32:
行 1022: [hv] Allocated 2 VCPUs (0x16A000 bytes).
行 1023: [hv] System EPROCESS = 0xFFFFCC0F8BC71300.
行 1024: [hv] EPROCESS::UniqueProcessId offset = 0x2E8.
行 1025: [hv] EPROCESS::ImageFileName offset = 0x450.
行 1026: [hv] System CR3 = 0x1AD000.
行 1027: [hv] Mapped all of physical memory to address 0x7F8000000000.
行 1028: [hv] Cached VCPU data.
行 1029: [hv] Enabled VMX operation.
行 1030: [hv] Entered VMX operation.
行 1031: [hv] Loaded VMCS pointer.
行 1032: [hv] Initialized external structures.
行 1033: [hv] Wrote VMCS fields.
行 1035: [hv] Launched VM on VCPU#1.
行 1036: [hv] Successfully pinged the hypervisor.
行 1037: [hv] Measured VM-exit overhead (TSC = 20664).
行 1038: [hv] Measured VM-exit overhead (MPERF = 0).
行 1039: [hv] Measured VM-exit overhead (CPU_CLK_UNHALTED.REF_TSC = 0).
行 1040: [hv] Cached VCPU data.
行 1041: [hv] Enabled VMX operation.
行 1042: [hv] Entered VMX operation.
行 1043: [hv] Loaded VMCS pointer.
行 1044: [hv] Initialized external structures.
行 1045: [hv] Wrote VMCS fields.
行 1047: [hv] Launched VM on VCPU#2.
行 1048: [hv] Successfully pinged the hypervisor.
行 1049: [hv] Measured VM-exit overhead (TSC = 20674).
行 1050: [hv] Measured VM-exit overhead (MPERF = 0).
行 1051: [hv] Measured VM-exit overhead (CPU_CLK_UNHALTED.REF_TSC = 0).

This is all the information I can provide. I hope you can help me，thank you.

Supplement: I found a physical machine with i5 8400 win10 1909 and hv works fine.

[jonomango]

Have you tried this? https://github.com/jonomango/hv/issues/13#issuecomment-1429118423

[LYingSiMon]

yes.

https://github.com/jonomango/hv/blob/86ca9f50238c65b75ef04fdec1f6c45d8e98fdbf/hv/vmcs.cpp#L51 The latest code, it's 0 here, so I didn't change it

https://github.com/jonomango/hv/blob/86ca9f50238c65b75ef04fdec1f6c45d8e98fdbf/hv/ept.h#L10 Here I changed it to 512

But problems still arise

https://github.com/jonomango/hv/assets/51651107/cf855791-deb4-46be-bfc8-b972e16449ad

[untyper]

Happened to me when I had other hypervisors running. Turn off your virtual machines and HyperV