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[Launchpad Bug Tracker <1737761@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package zfs-linux - 0.6.5.6-0ubuntu19

---------------
zfs-linux (0.6.5.6-0ubuntu19) xenial; urgency=medium

  * Add ZFS 0.7.0 kernel ioctl binary compat shim (LP: #1737761)
    Detect ZFS kernel driver version and copy zfs ioctl command to the
    newer ZFS 0.7.0 ioctl command layout.

 -- Colin Ian King <colin.king@xxxxxxxxxxxxx>  Mon, 19 Feb 2017 13:04:11
+0100

** Changed in: zfs-linux (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1737761

Title:
  zfs-linux 0.6.5.11-1ubuntu5 ADT test failure with linux 4.15.0-1.2

Status in zfs-linux package in Ubuntu:
  Fix Released
Status in zfs-linux source package in Xenial:
  Fix Released
Status in zfs-linux source package in Artful:
  Fix Released

Bug description:
  == SRU Justification, Xenial, Artful ==

  Running ZFS userspace utils with newer 0.7.x ZFS kernel drivers breaks
  ZFS send/receive because of changes in the ioctl command structure.

  == Testcase ==

  ubuntu ADT ZFS tests autotests/client/tests/ubuntu-zfs-smoke-tests
  will show a failure in ZFS SEND, with userspace zfs tools segfaulting.

  == Fix ==

  Fix is to detect if ZFS kernel driver is version 0.7.x and copy the
  0.6.5.x zfs ioctl command structure to a ZFS 0.7.x version, call the
  ioctl() and then copy the result back.

  == Regression Potential ==

  This will only affect the ZFS ioctl interface and this can be fully
  tested using the ZFS autotests with 0.7.0 and 0.6.5.x ZFS enabled
  kernels to check for the compatibility change regressions.

  --------------

  Testing failed on:
      amd64: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-bionic-canonical-kernel-team-bootstrap/bionic/amd64/z/zfs-linux/20171212_032601_d0613@/log.gz
      arm64: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-bionic-canonical-kernel-team-bootstrap/bionic/arm64/z/zfs-linux/20171212_020008_d0613@/log.gz
      ppc64el: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-bionic-canonical-kernel-team-bootstrap/bionic/ppc64el/z/zfs-linux/20171212_024359_d0613@/log.gz
      s390x: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-bionic-canonical-kernel-team-bootstrap/bionic/s390x/z/zfs-linux/20171212_032349_d0613@/log.gz

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