[Bug 2044657] Re: zfs block cloning file system corruption

[Matthew Bradley]

Since this bug has been around since 2006, is there a possibility this
will be backported to the 0.8.3-1ubuntu12.15 version of ZFS? It's the
up-to-date version of ZFS installed on systems here with ubuntu 20.04.6.

OS: Ubuntu 20.04.6 LTS x86_64
Kernel: 5.4.0-167-generic

uname -a
Linux archive-box 5.4.0-167-generic #184-Ubuntu SMP Tue Oct 31 09:21:49 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

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https://bugs.launchpad.net/bugs/2044657

Title:
  zfs block cloning file system corruption

Status in linux-hwe-6.2 package in Ubuntu:
  Confirmed
Status in linux-hwe-6.5 package in Ubuntu:
  Confirmed
Status in zfs-linux package in Ubuntu:
  Confirmed

Bug description:
  OpenZFS 2.2 reportedly has a bug where block cloning might lead to
  file system corruption and data loss. This was fixed in OpenZFS 2.2.1.

  Original bug report: https://github.com/openzfs/zfs/issues/15526

  and 2.2.1 release notes:
  https://github.com/openzfs/zfs/releases/tag/zfs-2.2.1

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