kernel-packages team mailing list archive

[Jeff Leung <jleung@xxxxxxxxxxxxxx>]

Public bug reported:

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.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Incomplete


** Tags: trusty

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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:
  Incomplete

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.

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