https://bugzilla.kernel.org/show_bug.cgi?id=217799 Bug ID: 217799 Summary: kvm: Windows Server 2003 VM fails to work on 6.1.44 (works fine on 6.1.43) Product: Virtualization Version: unspecified Hardware: All OS: Linux Status: NEW Severity: normal Priority: P3 Component: kvm Assignee: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx Reporter: rm+bko@xxxxxxxxxxx Regression: No Hello, I have a virtual machine running the old Windows Server 2003. On kernels 6.1.44 and 6.1.45, the QEMU VNC window stays dark, not switching to any of the guest's video modes and the VM process uses only ~64 MB of RAM of the assigned 2 GB, indefinitely. It's like the VM is paused/halted/stuck before even starting. The process can be killed successfully and then restarted again (with the same result), so it is not deadlocked in kernel or the like. Kernel 6.1.43 works fine. I have also tried downgrading CPU microcode from 20230808 to 20230719, but that did not help. The CPU is AMD Ryzen 5900. I suspect some of the newly added mitigations may be the culprit? -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
