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: [email protected]
Reporter: [email protected]
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.
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