[Hyper-V] ubuntu server with hyper-v virtual machine will freeze processes

Bug #1690107 reported by Jayson Reis on 2017-05-11
This bug affects 2 people
Affects Status Importance Assigned to Milestone
linux (Ubuntu)

Bug Description

I just installed an ubuntu server image with hyper-v and I am using tmux over it's bridge network to compile some rust projects and it seems to randomly hang the cpu, some processes like ps will just freeze before printing the last lines.

ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: linux-image-virtual
ProcVersionSignature: Ubuntu 4.10.0-20.22-generic 4.10.8
Uname: Linux 4.10.0-20-generic x86_64
 total 0
 crw-rw---- 1 root audio 116, 1 May 11 10:14 seq
 crw-rw---- 1 root audio 116, 33 May 11 10:14 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.4-0ubuntu4
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: Thu May 11 11:31:30 2017
HibernationDevice: RESUME=/dev/mapper/ubuntu--vg-swap_1
InstallationDate: Installed on 2017-04-23 (17 days ago)
InstallationMedia: Ubuntu-Server 17.04 "Zesty Zapus" - Release amd64 (20170412)
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lsusb: Error: command ['lsusb'] failed with exit code 1:
MachineType: Microsoft Corporation Virtual Machine

ProcFB: 0 hyperv_fb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-20-generic root=/dev/mapper/hostname--vg-root ro
 linux-restricted-modules-4.10.0-20-generic N/A
 linux-backports-modules-4.10.0-20-generic N/A
 linux-firmware 1.164
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/06/2017
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 090006
dmi.board.name: Virtual Machine
dmi.board.vendor: Microsoft Corporation
dmi.board.version: 7.0
dmi.chassis.asset.tag: 9964-9328-3358-4828-9545-9767-50
dmi.chassis.type: 3
dmi.chassis.vendor: Microsoft Corporation
dmi.chassis.version: 7.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr090006:bd01/06/2017:svnMicrosoftCorporation:pnVirtualMachine:pvr7.0:rvnMicrosoftCorporation:rnVirtualMachine:rvr7.0:cvnMicrosoftCorporation:ct3:cvr7.0:
dmi.product.name: Virtual Machine
dmi.product.version: 7.0
dmi.sys.vendor: Microsoft Corporation

Jayson Reis (jaysonsantos2003) wrote :

This change was made by a bot.

Changed in linux (Ubuntu):
status: New → Confirmed
Joshua R. Poulson (jrp) wrote :

Is this over vmconnect, RDP, or in an ssh session?

summary: - ubuntu server with hyper-v virtual machine will freeze processes
+ [Hyper-V] ubuntu server with hyper-v virtual machine will freeze
+ processes
Joseph Salisbury (jsalisbury) wrote :

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.11 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.11

Changed in linux (Ubuntu):
importance: Undecided → High
tags: added: kernel-da-key kernel-hyper-v
Changed in linux (Ubuntu Zesty):
importance: Undecided → High
status: New → Confirmed
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