This bug was fixed in the package linux - 3.18.0-9.10
---------------
linux (3.18.0-9.10) vivid; urgency=low
[ Colin Ian King ]
* SAUCE: drivers/rtc/interface.c: ignore exprired times when enqueing new
timers
- LP: #1333569
[ Joseph Salisbury ]
* [Config] Enable CONFIG_N_GSM as module.
- LP: #1404670
[ K. Y. Srinivasan ]
* SAUCE: storvsc: force SPC-3 compliance on win8 and win8 r2 hosts
- LP: #1406867
[ Leann Ogasawara ]
* rebase to v3.18.2
* Release Tracking Bug
- LP: #1409794
[ Upstream Kernel Changes ]
* Drivers: hv: util: make struct hv_do_fcopy match Hyper-V host messages
- LP: #1401903
* rebase to v3.18.2
-- Leann Ogasawara <leann.ogasaw...@canonical.com> Mon, 12 Jan 2015 08:53:12
-0800
** Changed in: linux (Ubuntu Vivid)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1406867
Title:
Hyper-V TRIM Feature Broken in current LTS trusty kernel
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Trusty:
Fix Committed
Status in linux source package in Utopic:
Fix Committed
Status in linux source package in Vivid:
Fix Released
Bug description:
The TRIM/UNMAP feature is broken in the current trusty kernel with
Hyper-V because of the reversion of this commit:
http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-
trusty.git;a=commit;h=81a73bce0c7b86fbf51004cb171387e73e082784
However a proposed storvsc patch has been submitted to the upstream
kernel mailing list which could be found here:
https://patchwork.kernel.org/patch/5503381/
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-upstart-bridge main process
ended, respawning
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_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-43-generic
root=/dev/mapper/trusty--201412122541-root ro quiet elevator=noop
video=hyperv_fb:800x600 splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11
RelatedPackageVersions:
linux-restricted-modules-3.13.0-43-generic N/A
linux-backports-modules-3.13.0-43-generic N/A
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.asset.tag: 3060-1254-0945-5202-9816-4673-85
dmi.chassis.type: 3
dmi.chassis.vendor: Microsoft Corporation
dmi.chassis.version: 7.0
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr090006:bd05/23/2012: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
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