apport information ** Attachment added: "BootDmesg.txt" https://bugs.launchpad.net/bugs/1204283/+attachment/3746969/+files/BootDmesg.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/1204283 Title: parameters "nested" and "allow_unsafe_assigned_interrupts" of kernel modules kvm_intel resp. kvm do not work Status in “linux” package in Ubuntu: Confirmed Bug description: I noticed that after an upgrade from 13.04 to 13.10 the kvm virtual machines were started no more. After having a look to /var/log/syslog I discovered the following error messages: [ 1598.121581] kvm: Unknown parameter `allow_unsafe_assigned_interrupts' [ 1609.503790] kvm: Unknown parameter `allow_unsafe_assigned_interrupts' [ 1692.341512] kvm_intel: Unknown parameter `nested' The kernel module paramerters mentioned above work no more. "modinfo" tells that the parameters should be available (as in 13.04) but they do not work. I can comment them out in the files where they are used (for example in /etc/modprobe.d/qemu-kvm.conf and in /etc/modprobe.d/qemu-system-x86.conf). "allow_unsafe_assigned_interrupts" is used in my own configuration file which is not part of any ubuntu package. After commenting out the parameters I get the following message (in /var/log/syslog): kvm_iommu_map_guest: No interrupt remapping support, disallowing device assignment. Re-enble with "allow_unsafe_assigned_interrupts=1" module option. Using the mentioned parameter gives me the error message stated at the beginning. A consequence of commenting out the parameters is that vga passthrough (with kvm) is now broken. --- ApportVersion: 2.11-0ubuntu1 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/dsp', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D3p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: [Errno 2] No such file or directory DistroRelease: Ubuntu 13.10 HibernationDevice: RESUME=UUID=cb1c6138-f7fa-4a4d-afc1-649b5475bb1f InstallationDate: Installed on 2012-09-15 (311 days ago) InstallationMedia: Ubuntu-Server 12.04 LTS "Precise Pangolin" - Release amd64 (20120424.1) MachineType: Hewlett-Packard HP xw6600 Workstation MarkForUpload: True Package: linux (not installed) ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.10.0-4-generic root=/dev/mapper/fast-medusa_root ro intel_iommu=on console=tty1 console=ttyS0,38400n8 ProcVersionSignature: Ubuntu 3.10.0-4.13-generic 3.10.1 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.10.0-4-generic N/A linux-backports-modules-3.10.0-4-generic N/A linux-firmware 1.112 RfKill: Error: [Errno 2] No such file or directory Tags: saucy Uname: Linux 3.10.0-4-generic x86_64 UpgradeStatus: Upgraded to saucy on 2013-07-21 (2 days ago) UserGroups: dmi.bios.date: 09/20/2012 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 786F4 v01.46 dmi.board.name: 0A9Ch dmi.board.vendor: Hewlett-Packard dmi.board.version: NA dmi.chassis.type: 6 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr786F4v01.46:bd09/20/2012:svnHewlett-Packard:pnHPxw6600Workstation:pvr:rvnHewlett-Packard:rn0A9Ch:rvrNA:cvnHewlett-Packard:ct6:cvr: dmi.product.name: HP xw6600 Workstation dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1204283/+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