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+id = 2042
+title = "Not able to reboot Linux guest on Windows host"
+state = "opened"
+created_at = "2023-12-18T22:23:14.711Z"
+closed_at = "n/a"
+labels = []
+url = "https://gitlab.com/qemu-project/qemu/-/issues/2042"
+host-os = "Windows 10 Enterprise"
+host-arch = "x86_64"
+qemu-version = "8.1"
+guest-os = "Linux Mint"
+guest-arch = "x86_64"
+description = """I am running Linux Mint on Windows, but when I try to reboot the machine, I get the following error:
+
+qemu: WHPX: Unexpected VP exit code 4
+
+I did some experiments changing the flags I use when I launch Qemu and I realized that if I set -smp 1 it does not fail. Furthermore, if I set the irqchip to off (kernel-irqchip=off) it does not fail either, but both options do not have good performance at all. I realized too that if I set 4 cores (-smp 4), the error might appear up to 4 times.
+
+What seems to be failing then is the APIC emulation that Hyper-V provides. Does anyone know if:
+
+1. Am I missing a flag when launching Qemu?
+2. Is it there a patch to solve this?
+
+Any leads for solving this problem would be highly appreciated."""
+reproduce = """1. Install MSYS
+2. Open MSYS and run pacman -S mingw-w64-x86_64-qemu
+3. Launch Qemu and reboot machine"""
+additional = "n/a"