https://bugzilla.kernel.org/show_bug.cgi?id=205801 Bug ID: 205801 Summary: ignore_msrs =Y and report_ignored_msrs = N not working Product: Virtualization Version: unspecified Kernel Version: 5.0.15-1-pve (from proxmox) Hardware: Intel OS: Linux Tree: Mainline Status: NEW Severity: low Priority: P1 Component: kvm Assignee: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx Reporter: harliff@xxxxxxxxx Regression: No There is a VM (windows 2016) which constantly generating more than 10 messages every second like this: ``` kvm [35691]: vcpu1, guest rIP: 0xfffff800c9fedbb3 kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop ``` I can't prevent the VM from generating these MSRs due to proprietary software running inside it (maybe its due to some kind of software protection, but I'm not sure). So I wish to be able to disable this messages on KVM level or filter messages from getting to the kernel ring buffer (shown by dmesg). I've tried to set kvm module parameters -- without success: - echo Y > /sys/module/kvm/parameters/ignore_msrs - echo N > /sys/module/kvm/parameters/report_ignored_msrs Is it due to a bug or I'm misunderstanding whats these parameters should do? May you suggest me a workaround (to prevent these messages from getting shown on console/via dmesg/via journalctl -k)? -- You are receiving this mail because: You are watching the assignee of the bug.
