Bug 252744

Summary:	kvm-intel module won't load with sys-kernel/gentoo-sources 2.6.27-r7
Product:	Gentoo Linux	Reporter:	Charles McGarvey <chazmcgarvey>
Component:	[OLD] Core system	Assignee:	Daniel Gryniewicz (RETIRED) <dang>
Status:	RESOLVED WORKSFORME
Severity:	normal	CC:	cardoe, tsdh
Priority:	High
Version:	unspecified
Hardware:	AMD64
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Charles McGarvey 2008-12-27 20:01:19 UTC

The kvm-intel module will not load with the latest stable kernel (2.6.27-r7) with "operation not permitted" and "disabled in bios."  This usually indicates that the VT extensions are dnot enabled in the bios setup, but it is enabled.  It works as it should in previous kernels and in the latest 2.6.28 version.

Reproducible: Always

Comment 1 Jeremy Olexa (darkside) (RETIRED) archtester

2008-12-29 00:38:48 UTC

Hm, that is odd. Assigning to maintainers.

Comment 2 Tassilo Horn 2009-02-13 22:33:27 UTC

I always get:

root@thinkpad> modprobe kvm-intel
FATAL: Error inserting kvm_intel (/lib/modules/2.6.28-gentoo-r1/kernel/arch/x86/kvm/kvm-intel.ko): Operation not supported

The kvm module loads fine, though, but I don't get a /dev/kvm device.

Comment 3 Tassilo Horn 2009-02-13 22:46:11 UTC

Ah, I was a bit too fast.  dmesg told me that kvm was disabled in the BIOS.  I enabled Intel VT before, but in order to make it work a system halt (no reboot) was needed.

Now it works as expected.

Comment 4 Daniel Gryniewicz (RETIRED) gentoo-dev

2009-02-14 04:04:03 UTC

We hit this on one of our boxes at work.  Combinations of disabling and enabling VT and VT-d in the kernel eventually made it work again.

Comment 5 Daniel Gryniewicz (RETIRED) gentoo-dev

2009-05-14 13:13:09 UTC

Closing.