apport information ** Attachment added: "ProcInterrupts.txt" https://bugs.launchpad.net/bugs/1532571/+attachment/4551757/+files/ProcInterrupts.txt
-- 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/1532571 Title: kvm crashes host kernel on trusty+hwe-w (unable to handle kernel paging request in __mtrr_lookup_var_next) Status in linux package in Ubuntu: Confirmed Bug description: When building the test environment for subiquity I end up with an image I can run with qemu/kvm. And I realized that this works fine with the Trusty kernel (Host), but when running on trusty+hwe-t (4.2.0-23-generic) it reliably crashes my host (not only the guest). On the good side it seems 1. 1005 reproducible 2. always the same issue The Commandline I run is: sudo qemu-system-x86_64 -smp 2 -m 1024 -enable-kvm -bios /usr/share/ovmf/OVMF.fd -drive snapshot=on,format=raw,cache=unsafe,if=ide,file=ubuntu-server-daily-wily-amd64-installer.img,serial=QM_INSTALL_01 -drive format=raw,cache=unsafe,if=ide,file=target.img_1,serial=QM_TARGET_01 -drive format=raw,cache=unsafe,if=virtio,file=target.img_2,serial=QM_TARGET_02 -drive format=raw,cache=unsafe,if=virtio,file=target.img_3,serial=QM_TARGET_03 -drive format=raw,cache=unsafe,if=virtio,file=target.img_4,serial=QM_TARGET_04 -global isa-fdc.driveA= -net user -net nic,model=e1000 -net nic,model=virtio -net nic,model=i82559er -monitor telnet:127.0.0.1:2446,server,nowait -serial stdio I'll attach what I've seen in dmesg, let me know if you need any more debug data. If one provides me a upload target I can share the image I boot (2GB). --- ApportVersion: 2.14.1-0ubuntu3.19 Architecture: amd64 CurrentDesktop: KDE DistroRelease: Ubuntu 14.04 HibernationDevice: RESUME=UUID=a36a1b98-ded1-42b1-8b9b-6f6f565ba2b6 InstallationDate: Installed on 2015-08-14 (156 days ago) InstallationMedia: Kubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150219.1) MachineType: LENOVO 20BSCTO1WW Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-23-generic root=UUID=265add9d-4d61-40e3-956b-17ac2695c621 ro quiet splash nomdmonddf nomdmonisw crashkernel=384M-:128M vt.handoff=7 ProcVersionSignature: Ubuntu 4.2.0-23.28~14.04.1-generic 4.2.6 RelatedPackageVersions: linux-restricted-modules-4.2.0-23-generic N/A linux-backports-modules-4.2.0-23-generic N/A linux-firmware 1.127.19 Tags: trusty Uname: Linux 4.2.0-23-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip kvm libvirtd lp lpadmin lxd plugdev sambashare sbuild sudo _MarkForUpload: True dmi.bios.date: 06/26/2015 dmi.bios.vendor: LENOVO dmi.bios.version: N14ET31W (1.09 ) dmi.board.asset.tag: Not Available dmi.board.name: 20BSCTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN14ET31W(1.09):bd06/26/2015:svnLENOVO:pn20BSCTO1WW:pvrThinkPadX1Carbon3rd:rvnLENOVO:rn20BSCTO1WW:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20BSCTO1WW dmi.product.version: ThinkPad X1 Carbon 3rd dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1532571/+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
