[Kernel-packages] [Bug 1780761] Re: kernel 4.4.0-130-generic - packet loss with ip forward

2018-07-18 Thread Joseph Salisbury
** Changed in: linux (Ubuntu)
   Status: Triaged => Fix Committed

** Changed in: linux (Ubuntu Xenial)
   Status: Triaged => Fix Committed

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https://bugs.launchpad.net/bugs/1780761

Title:
  kernel 4.4.0-130-generic - packet loss with ip forward

Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Xenial:
  Fix Committed

Bug description:
  Reproduced with 16.04.4 LTS and Citrix Xenserver 7.0, 7.1, 7.4.
  Some packet loss is observed after upgrading to 4.4.0-130-generic when the 
traffic is routed via VM. 

  Steps to reproduce:
  1) Using Citrix Xenserver, set up Ubuntu server VM, upgrade to 
4.4.0-130-generic
  2) Enable IP forwarding
  3) Send any traffic via this VM (for ex. icmp ping)
  4) Packets leaving the VM may not reach the second VM on the same physical 
host or not leave the physical host machine
  5) Packets coming to a physical host machine interface may not reach the 
virtual machine

  Rollback to 4.4.0-128-generic helps.

  A file with tcpdump results and a brief explanation is attached.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-130-generic 4.4.0-130.156
  ProcVersionSignature: Ubuntu 4.4.0-130.156-generic 4.4.134
  Uname: Linux 4.4.0-130-generic x86_64
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Jul  9 11:24 seq
   crw-rw 1 root audio 116, 33 Jul  9 11:24 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.18
  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:
  Date: Mon Jul  9 13:18:47 2018
  InstallationDate: Installed on 2018-06-04 (34 days ago)
  InstallationMedia: Ubuntu-Server 16.04.2 LTS "Xenial Xerus" - Release amd64 
(20170215.8)
  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: Xen HVM domU
  PciMultimedia:
   
  ProcEnviron:
   LANGUAGE=en_US:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 EFI VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-130-generic 
root=UUID=46979d34-98b0-470f-9f1f-29147de9f253 ro ipv6.disable=1 net.ifnames=0 
biosdevname=0
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-130-generic N/A
   linux-backports-modules-4.4.0-130-generic  N/A
   linux-firmware 1.157.19
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/14/2018
  dmi.bios.vendor: Xen
  dmi.bios.version: 4.7.5-4.4
  dmi.chassis.type: 1
  dmi.chassis.vendor: Xen
  dmi.modalias: 
dmi:bvnXen:bvr4.7.5-4.4:bd06/14/2018:svnXen:pnHVMdomU:pvr4.7.5-4.4:cvnXen:ct1:cvr:
  dmi.product.name: HVM domU
  dmi.product.version: 4.7.5-4.4
  dmi.sys.vendor: Xen

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[Kernel-packages] [Bug 1780761] Re: kernel 4.4.0-130-generic - packet loss with ip forward

2018-07-18 Thread Kseniya Blashchuk
Thank you. Tested on 4.4.0-131-generic from xenial-proposed. I can
confirm that it resolves the bug.

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Title:
  kernel 4.4.0-130-generic - packet loss with ip forward

Status in linux package in Ubuntu:
  Triaged
Status in linux source package in Xenial:
  Triaged

Bug description:
  Reproduced with 16.04.4 LTS and Citrix Xenserver 7.0, 7.1, 7.4.
  Some packet loss is observed after upgrading to 4.4.0-130-generic when the 
traffic is routed via VM. 

  Steps to reproduce:
  1) Using Citrix Xenserver, set up Ubuntu server VM, upgrade to 
4.4.0-130-generic
  2) Enable IP forwarding
  3) Send any traffic via this VM (for ex. icmp ping)
  4) Packets leaving the VM may not reach the second VM on the same physical 
host or not leave the physical host machine
  5) Packets coming to a physical host machine interface may not reach the 
virtual machine

  Rollback to 4.4.0-128-generic helps.

  A file with tcpdump results and a brief explanation is attached.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-130-generic 4.4.0-130.156
  ProcVersionSignature: Ubuntu 4.4.0-130.156-generic 4.4.134
  Uname: Linux 4.4.0-130-generic x86_64
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Jul  9 11:24 seq
   crw-rw 1 root audio 116, 33 Jul  9 11:24 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.18
  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:
  Date: Mon Jul  9 13:18:47 2018
  InstallationDate: Installed on 2018-06-04 (34 days ago)
  InstallationMedia: Ubuntu-Server 16.04.2 LTS "Xenial Xerus" - Release amd64 
(20170215.8)
  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: Xen HVM domU
  PciMultimedia:
   
  ProcEnviron:
   LANGUAGE=en_US:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 EFI VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-130-generic 
root=UUID=46979d34-98b0-470f-9f1f-29147de9f253 ro ipv6.disable=1 net.ifnames=0 
biosdevname=0
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-130-generic N/A
   linux-backports-modules-4.4.0-130-generic  N/A
   linux-firmware 1.157.19
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/14/2018
  dmi.bios.vendor: Xen
  dmi.bios.version: 4.7.5-4.4
  dmi.chassis.type: 1
  dmi.chassis.vendor: Xen
  dmi.modalias: 
dmi:bvnXen:bvr4.7.5-4.4:bd06/14/2018:svnXen:pnHVMdomU:pvr4.7.5-4.4:cvnXen:ct1:cvr:
  dmi.product.name: HVM domU
  dmi.product.version: 4.7.5-4.4
  dmi.sys.vendor: Xen

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1780761] Re: kernel 4.4.0-130-generic - packet loss with ip forward

2018-07-17 Thread Joseph Salisbury
This bug may be fixed by the following commit, which is in Xenial -proposed:
758c626 xen-netfront: Fix mismatched rtnl_unlock

Would it be possible for you to test the proposed kernel and post back if it 
resolves this bug?
See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to 
enable and use -proposed. 

Thank you in advance!


** Changed in: linux (Ubuntu)
 Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

** Changed in: linux (Ubuntu Xenial)
 Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1780761

Title:
  kernel 4.4.0-130-generic - packet loss with ip forward

Status in linux package in Ubuntu:
  Triaged
Status in linux source package in Xenial:
  Triaged

Bug description:
  Reproduced with 16.04.4 LTS and Citrix Xenserver 7.0, 7.1, 7.4.
  Some packet loss is observed after upgrading to 4.4.0-130-generic when the 
traffic is routed via VM. 

  Steps to reproduce:
  1) Using Citrix Xenserver, set up Ubuntu server VM, upgrade to 
4.4.0-130-generic
  2) Enable IP forwarding
  3) Send any traffic via this VM (for ex. icmp ping)
  4) Packets leaving the VM may not reach the second VM on the same physical 
host or not leave the physical host machine
  5) Packets coming to a physical host machine interface may not reach the 
virtual machine

  Rollback to 4.4.0-128-generic helps.

  A file with tcpdump results and a brief explanation is attached.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-130-generic 4.4.0-130.156
  ProcVersionSignature: Ubuntu 4.4.0-130.156-generic 4.4.134
  Uname: Linux 4.4.0-130-generic x86_64
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Jul  9 11:24 seq
   crw-rw 1 root audio 116, 33 Jul  9 11:24 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.18
  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:
  Date: Mon Jul  9 13:18:47 2018
  InstallationDate: Installed on 2018-06-04 (34 days ago)
  InstallationMedia: Ubuntu-Server 16.04.2 LTS "Xenial Xerus" - Release amd64 
(20170215.8)
  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: Xen HVM domU
  PciMultimedia:
   
  ProcEnviron:
   LANGUAGE=en_US:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 EFI VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-130-generic 
root=UUID=46979d34-98b0-470f-9f1f-29147de9f253 ro ipv6.disable=1 net.ifnames=0 
biosdevname=0
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-130-generic N/A
   linux-backports-modules-4.4.0-130-generic  N/A
   linux-firmware 1.157.19
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/14/2018
  dmi.bios.vendor: Xen
  dmi.bios.version: 4.7.5-4.4
  dmi.chassis.type: 1
  dmi.chassis.vendor: Xen
  dmi.modalias: 
dmi:bvnXen:bvr4.7.5-4.4:bd06/14/2018:svnXen:pnHVMdomU:pvr4.7.5-4.4:cvnXen:ct1:cvr:
  dmi.product.name: HVM domU
  dmi.product.version: 4.7.5-4.4
  dmi.sys.vendor: Xen

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1780761] Re: kernel 4.4.0-130-generic - packet loss with ip forward

2018-07-17 Thread Joseph Salisbury
** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu)
   Status: Confirmed => Incomplete

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
   Status: New

** Changed in: linux (Ubuntu Xenial)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu Xenial)
   Status: New => Incomplete

** Changed in: linux (Ubuntu Xenial)
   Status: Incomplete => Triaged

** Changed in: linux (Ubuntu)
   Status: Incomplete => Triaged

-- 
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/1780761

Title:
  kernel 4.4.0-130-generic - packet loss with ip forward

Status in linux package in Ubuntu:
  Triaged
Status in linux source package in Xenial:
  Triaged

Bug description:
  Reproduced with 16.04.4 LTS and Citrix Xenserver 7.0, 7.1, 7.4.
  Some packet loss is observed after upgrading to 4.4.0-130-generic when the 
traffic is routed via VM. 

  Steps to reproduce:
  1) Using Citrix Xenserver, set up Ubuntu server VM, upgrade to 
4.4.0-130-generic
  2) Enable IP forwarding
  3) Send any traffic via this VM (for ex. icmp ping)
  4) Packets leaving the VM may not reach the second VM on the same physical 
host or not leave the physical host machine
  5) Packets coming to a physical host machine interface may not reach the 
virtual machine

  Rollback to 4.4.0-128-generic helps.

  A file with tcpdump results and a brief explanation is attached.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-130-generic 4.4.0-130.156
  ProcVersionSignature: Ubuntu 4.4.0-130.156-generic 4.4.134
  Uname: Linux 4.4.0-130-generic x86_64
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Jul  9 11:24 seq
   crw-rw 1 root audio 116, 33 Jul  9 11:24 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.18
  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:
  Date: Mon Jul  9 13:18:47 2018
  InstallationDate: Installed on 2018-06-04 (34 days ago)
  InstallationMedia: Ubuntu-Server 16.04.2 LTS "Xenial Xerus" - Release amd64 
(20170215.8)
  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: Xen HVM domU
  PciMultimedia:
   
  ProcEnviron:
   LANGUAGE=en_US:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 EFI VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-130-generic 
root=UUID=46979d34-98b0-470f-9f1f-29147de9f253 ro ipv6.disable=1 net.ifnames=0 
biosdevname=0
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-130-generic N/A
   linux-backports-modules-4.4.0-130-generic  N/A
   linux-firmware 1.157.19
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/14/2018
  dmi.bios.vendor: Xen
  dmi.bios.version: 4.7.5-4.4
  dmi.chassis.type: 1
  dmi.chassis.vendor: Xen
  dmi.modalias: 
dmi:bvnXen:bvr4.7.5-4.4:bd06/14/2018:svnXen:pnHVMdomU:pvr4.7.5-4.4:cvnXen:ct1:cvr:
  dmi.product.name: HVM domU
  dmi.product.version: 4.7.5-4.4
  dmi.sys.vendor: Xen

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1780761] Re: kernel 4.4.0-130-generic - packet loss with ip forward

2018-07-16 Thread Kseniya Blashchuk
Installed and tested kernel 4.15.0-24: also affected

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1780761

Title:
  kernel 4.4.0-130-generic - packet loss with ip forward

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Reproduced with 16.04.4 LTS and Citrix Xenserver 7.0, 7.1, 7.4.
  Some packet loss is observed after upgrading to 4.4.0-130-generic when the 
traffic is routed via VM. 

  Steps to reproduce:
  1) Using Citrix Xenserver, set up Ubuntu server VM, upgrade to 
4.4.0-130-generic
  2) Enable IP forwarding
  3) Send any traffic via this VM (for ex. icmp ping)
  4) Packets leaving the VM may not reach the second VM on the same physical 
host or not leave the physical host machine
  5) Packets coming to a physical host machine interface may not reach the 
virtual machine

  Rollback to 4.4.0-128-generic helps.

  A file with tcpdump results and a brief explanation is attached.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-130-generic 4.4.0-130.156
  ProcVersionSignature: Ubuntu 4.4.0-130.156-generic 4.4.134
  Uname: Linux 4.4.0-130-generic x86_64
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Jul  9 11:24 seq
   crw-rw 1 root audio 116, 33 Jul  9 11:24 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.18
  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:
  Date: Mon Jul  9 13:18:47 2018
  InstallationDate: Installed on 2018-06-04 (34 days ago)
  InstallationMedia: Ubuntu-Server 16.04.2 LTS "Xenial Xerus" - Release amd64 
(20170215.8)
  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: Xen HVM domU
  PciMultimedia:
   
  ProcEnviron:
   LANGUAGE=en_US:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 EFI VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-130-generic 
root=UUID=46979d34-98b0-470f-9f1f-29147de9f253 ro ipv6.disable=1 net.ifnames=0 
biosdevname=0
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-130-generic N/A
   linux-backports-modules-4.4.0-130-generic  N/A
   linux-firmware 1.157.19
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/14/2018
  dmi.bios.vendor: Xen
  dmi.bios.version: 4.7.5-4.4
  dmi.chassis.type: 1
  dmi.chassis.vendor: Xen
  dmi.modalias: 
dmi:bvnXen:bvr4.7.5-4.4:bd06/14/2018:svnXen:pnHVMdomU:pvr4.7.5-4.4:cvnXen:ct1:cvr:
  dmi.product.name: HVM domU
  dmi.product.version: 4.7.5-4.4
  dmi.sys.vendor: Xen

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1780761] Re: kernel 4.4.0-130-generic - packet loss with ip forward

2018-07-13 Thread Kseniya Blashchuk
We have performed kernel bisect, git bisect log is attached.
The results show:

2e118dcfc70978d2c8b7d55ce6d2decc6588ee62 is the first bad commit
commit 2e118dcfc70978d2c8b7d55ce6d2decc6588ee62
Author: Ross Lagerwall 
Date: Thu Jan 11 09:36:38 2018 +

xen-netfront: Fix race between device setup and open

** Attachment added: "bisect_log"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1780761/+attachment/5163184/+files/bisect_log

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1780761

Title:
  kernel 4.4.0-130-generic - packet loss with ip forward

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Reproduced with 16.04.4 LTS and Citrix Xenserver 7.0, 7.1, 7.4.
  Some packet loss is observed after upgrading to 4.4.0-130-generic when the 
traffic is routed via VM. 

  Steps to reproduce:
  1) Using Citrix Xenserver, set up Ubuntu server VM, upgrade to 
4.4.0-130-generic
  2) Enable IP forwarding
  3) Send any traffic via this VM (for ex. icmp ping)
  4) Packets leaving the VM may not reach the second VM on the same physical 
host or not leave the physical host machine
  5) Packets coming to a physical host machine interface may not reach the 
virtual machine

  Rollback to 4.4.0-128-generic helps.

  A file with tcpdump results and a brief explanation is attached.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-130-generic 4.4.0-130.156
  ProcVersionSignature: Ubuntu 4.4.0-130.156-generic 4.4.134
  Uname: Linux 4.4.0-130-generic x86_64
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Jul  9 11:24 seq
   crw-rw 1 root audio 116, 33 Jul  9 11:24 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.18
  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:
  Date: Mon Jul  9 13:18:47 2018
  InstallationDate: Installed on 2018-06-04 (34 days ago)
  InstallationMedia: Ubuntu-Server 16.04.2 LTS "Xenial Xerus" - Release amd64 
(20170215.8)
  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: Xen HVM domU
  PciMultimedia:
   
  ProcEnviron:
   LANGUAGE=en_US:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 EFI VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-130-generic 
root=UUID=46979d34-98b0-470f-9f1f-29147de9f253 ro ipv6.disable=1 net.ifnames=0 
biosdevname=0
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-130-generic N/A
   linux-backports-modules-4.4.0-130-generic  N/A
   linux-firmware 1.157.19
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/14/2018
  dmi.bios.vendor: Xen
  dmi.bios.version: 4.7.5-4.4
  dmi.chassis.type: 1
  dmi.chassis.vendor: Xen
  dmi.modalias: 
dmi:bvnXen:bvr4.7.5-4.4:bd06/14/2018:svnXen:pnHVMdomU:pvr4.7.5-4.4:cvnXen:ct1:cvr:
  dmi.product.name: HVM domU
  dmi.product.version: 4.7.5-4.4
  dmi.sys.vendor: Xen

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