id = 2325
title = "[Performance Regression] Constant freezes on Alder lake and Raptor lake CPUs."
state = "opened"
created_at = "2024-05-04T16:29:40.519Z"
closed_at = "n/a"
labels = ["accel: KVM", "target: i386"]
url = "https://gitlab.com/qemu-project/qemu/-/issues/2325"
host-os = "Arch Linux"
host-arch = "x86_64"
qemu-version = "Upstream 97c87227, a06d9edd and [d3233386](https://gitlab.com/qemu-project/qemu/-/commit/d323338629588ea985c68384642169045ca0e16d \"target/ppc: Remove bat_size_prot()\")"
guest-os = "Both Windows 11 and Windows 10"
guest-arch = "x86_64"
description = """Strangely, no logs are recorded. The guest just freezes. It can however be rescued by a simple pause and unpause.

This issue only happens when using the KVM hypervisor. Other hypervisors are fine.

This issue does NOT happen when I tested my Intel Core i7 8700K."""
reproduce = """1. Create a basic virtual machine for Windows 11 (Or 10).
2. Run it for about 5 - 30 minutes (Sometimes it happens in 20 seconds or even less).
3. The problem should occur."""
additional = "n/a"