https://bugzilla.kernel.org/show_bug.cgi?id=105841 Bug ID: 105841 Summary: "KVM: x86: apply guest MTRR virtualization on host reserved pages" causes kernel to panic on boot Product: Virtualization Version: unspecified Kernel Version: 4.2.0 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: kvm Assignee: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx Reporter: vapier@xxxxxxxxxx Regression: Yes Created attachment 190041 --> https://bugzilla.kernel.org/attachment.cgi?id=190041&action=edit kernel config after upgrading to linux-4.2, i found my system no longer booted -- it paniced pretty early on. after bisecting it down, it started with: commit fd717f11015f673487ffc826e59b2bad69d20fe5 KVM: x86: apply guest MTRR virtualization on host reserved pages going back to the linux-4.2 release, if i revert these commits, things boot: fd717f11015f673487ffc826e59b2bad69d20fe5 e098223b789b4a618dacd79e5e0dad4a9d5018d1 3c2e7f7de3240216042b61073803b61b9b3cfb22 i needed all three because the other two started using code from the first bad commit. i'm using a AMD Phenom(tm) II X4 980 Processor. having trouble getting a panic log (no serial port). will try to manually offload it. -- You are receiving this mail because: You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
