Darn, I think I got lost in version numbers. While the change mentioned in comment #21 is causing the module load to fail, it cannot be helping to make this present in L1. Because 3.13 did work with a 3.16 kernel. It was only 3.2 that failed. And the change was in 3.15. So it is something else that causes both features to be set as supported in 3.13 but not in 3.2. Only before 3.15 this cannot be noticed.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1431473 Title: kvm_intel (nested) module will not load [Input/output error] Status in linux package in Ubuntu: Confirmed Status in linux source package in Utopic: Confirmed Status in linux source package in Vivid: Confirmed Bug description: I have 2 different systems, both are kvm instances themselves, both running vivid. One of them has /dev/kvm and kvm working fine (well, fine-ish bug 1413540). The other will not load the kvm_intel module. === system 1 === $ sudo kvm-ok INFO: /dev/kvm does not exist HINT: sudo modprobe kvm_intel INFO: Your CPU supports KVM extensions KVM acceleration can be used $ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 Duo CPU T7700 @ 2.40GHz stepping : 11 microcode : 0x1 cpu MHz : 2400.084 cache size : 4096 KB physical id : 0 siblings : 1 core id : 0 cpu cores : 1 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx rdtscp lm constant_tsc rep_good nopl pni vmx ssse3 cx16 sse4_1 sse4_2 popcnt hypervisor lahf_lm bugs : bogomips : 4800.16 clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: $ ls -l /dev/kvm ls: cannot access /dev/kvm: No such file or directory $ sudo modprobe kvm_intel modprobe: ERROR: could not insert 'kvm_intel': Input/output error === system 2 === $ sudo kvm-ok INFO: /dev/kvm exists KVM acceleration can be used $ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 42 model name : Intel Xeon E312xx (Sandy Bridge) stepping : 1 microcode : 0x1 cpu MHz : 1995.191 cache size : 4096 KB physical id : 0 siblings : 1 core id : 0 cpu cores : 1 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl eagerfpu pni pclmulqdq vmx ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx hypervisor lahf_lm vnmi ept xsaveopt bugs : bogomips : 3990.38 clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-7-generic 3.19.0-7.7 ProcVersionSignature: User Name 3.19.0-7.7-generic 3.19.0 Uname: Linux 3.19.0-7-generic x86_64 AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Mar 12 17:07 seq crw-rw---- 1 root audio 116, 33 Mar 12 17:07 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.16.2-0ubuntu1 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: [Errno 2] No such file or directory: 'iw' Date: Thu Mar 12 17:12:26 2015 Ec2AMI: ami-00000c86 Ec2AMIManifest: FIXME Ec2AvailabilityZone: nova Ec2InstanceType: m1.small Ec2Kernel: aki-00000548 Ec2Ramdisk: ari-00000548 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: OpenStack Foundation OpenStack Nova PciMultimedia: ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-7-generic root=LABEL=cloudimg-rootfs ro init=/lib/systemd/systemd console=tty1 console=ttyS0 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/01/2007 dmi.bios.vendor: Bochs dmi.bios.version: Bochs dmi.chassis.type: 1 dmi.chassis.vendor: Bochs dmi.modalias: dmi:bvnBochs:bvrBochs:bd01/01/2007:svnOpenStackFoundation:pnOpenStackNova:pvr2013.1.5:cvnBochs:ct1:cvr: dmi.product.name: OpenStack Nova dmi.product.version: 2013.1.5 dmi.sys.vendor: OpenStack Foundation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1431473/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
