Having tried now with virtio as well: works So: virtio, ide = OK sata = broken
-- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1204697 Title: guest disk accesses lead to ATA errors + host vcpu0 unhandled wrmsr/rdmsr Status in QEMU: New Status in “qemu” package in Debian: Confirmed Bug description: Hi. This is from http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=717724. Using Debian sid with 1.5.0-5 my Linux VMs (also Debian sid) are broken. When they boot I get gazillions of ATA errors inside the guest, as well as: [ 242.479951] kvm [7790]: vcpu0 unhandled rdmsr: 0x345 [ 242.483683] kvm [7790]: vcpu0 unhandled wrmsr: 0x680 data 0 [ 242.483687] kvm [7790]: vcpu0 unhandled wrmsr: 0x6c0 data 0 [ 242.483689] kvm [7790]: vcpu0 unhandled wrmsr: 0x681 data 0 [ 242.483691] kvm [7790]: vcpu0 unhandled wrmsr: 0x6c1 data 0 [ 242.483693] kvm [7790]: vcpu0 unhandled wrmsr: 0x682 data 0 [ 242.483696] kvm [7790]: vcpu0 unhandled wrmsr: 0x6c2 data 0 [ 242.483698] kvm [7790]: vcpu0 unhandled wrmsr: 0x683 data 0 [ 242.483700] kvm [7790]: vcpu0 unhandled wrmsr: 0x6c3 data 0 [ 242.483702] kvm [7790]: vcpu0 unhandled wrmsr: 0x684 data 0 [ 242.483704] kvm [7790]: vcpu0 unhandled wrmsr: 0x6c4 data 0 [ 242.988307] kvm [7790]: vcpu0 unhandled rdmsr: 0xe8 [ 242.988312] kvm [7790]: vcpu0 unhandled rdmsr: 0xe7 [ 242.988314] kvm [7790]: vcpu0 unhandled rdmsr: 0xce [ 242.988316] kvm [7790]: vcpu0 unhandled rdmsr: 0xce [ 242.988318] kvm [7790]: vcpu0 unhandled rdmsr: 0x1ad [ 242.988320] kvm [7790]: vcpu0 unhandled rdmsr: 0xce [ 242.988322] kvm [7790]: vcpu0 unhandled rdmsr: 0xe8 [ 242.988324] kvm [7790]: vcpu0 unhandled rdmsr: 0xe7 [ 242.988598] kvm [7790]: vcpu0 unhandled rdmsr: 0xce in the host. Please have a look at the Debian bug, for screenshots and more info. The problem didn't occur in 1.5.0-4 and there were basically no changes inside the VM (i.e. no kernel upgrade or so). Thanks, Chris. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1204697/+subscriptions