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[n3u20m4nc32 <n3u20m4nc32@xxxxxx>]

apport information

** Attachment added: "WifiSyslog.txt"
   https://bugs.launchpad.net/bugs/1204283/+attachment/3746979/+files/WifiSyslog.txt

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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

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