Hyper-V TRIM Feature Broken in current LTS trusty kernel
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Medium
|
Andy Whitcroft | ||
Trusty |
Fix Released
|
Medium
|
Andy Whitcroft | ||
Utopic |
Fix Released
|
Medium
|
Andy Whitcroft | ||
Vivid |
Fix Released
|
Medium
|
Andy Whitcroft |
Bug Description
The TRIM/UNMAP feature is broken in the current trusty kernel with Hyper-V because of the reversion of this commit:
However a proposed storvsc patch has been submitted to the upstream kernel mailing list which could be found here:
https:/
In Hyper-V TRIM/UNMAP allows the user to reclaim allocated storage that is no longer in use inside a thin provisioned VHDX volume.
---
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Jan 1 03:42 seq
crw-rw---- 1 root audio 116, 33 Jan 1 03:42 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CRDA: Error: [Errno 2] No such file or directory
CurrentDmesg: [ 10.846694] init: plymouth-
DistroRelease: Ubuntu 14.04
IwConfig: Error: [Errno 2] No such file or directory
Lspci: Error: [Errno 2] No such file or directory
Lsusb: Error: [Errno 2] No such file or directory
MachineType: Microsoft Corporation Virtual Machine
Package: linux (not installed)
PciMultimedia:
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=
ProcVersionSign
RelatedPackageV
linux-
linux-
linux-firmware N/A
RfKill: Error: [Errno 2] No such file or directory
Tags: trusty
Uname: Linux 3.13.0-43-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
_MarkForUpload: True
dmi.bios.date: 05/23/2012
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.
dmi.chassis.type: 3
dmi.chassis.vendor: Microsoft Corporation
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.name: Virtual Machine
dmi.product.
dmi.sys.vendor: Microsoft Corporation
Changed in linux (Ubuntu): | |
status: | Incomplete → Confirmed |
status: | Confirmed → Incomplete |
Changed in linux (Ubuntu): | |
assignee: | nobody → Andy Whitcroft (apw) |
milestone: | none → ubuntu-15.01 |
Changed in linux (Ubuntu Trusty): | |
status: | New → In Progress |
Changed in linux (Ubuntu Utopic): | |
status: | New → In Progress |
Changed in linux (Ubuntu Vivid): | |
status: | Triaged → In Progress |
Changed in linux (Ubuntu Trusty): | |
importance: | Undecided → Medium |
Changed in linux (Ubuntu Utopic): | |
importance: | Undecided → Medium |
Changed in linux (Ubuntu Trusty): | |
assignee: | nobody → Andy Whitcroft (apw) |
Changed in linux (Ubuntu Utopic): | |
assignee: | nobody → Andy Whitcroft (apw) |
milestone: | none → utopic-updates |
Changed in linux (Ubuntu Trusty): | |
milestone: | none → trusty-updates |
Changed in linux (Ubuntu Vivid): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Trusty): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Utopic): | |
status: | In Progress → Fix Committed |
tags: |
added: verification-done-trusty removed: verification-needed-trusty |
tags: |
added: verification-done-utopic removed: verification-needed-utopic |
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1406867
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.