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[Stefan Bader <stefan.bader@xxxxxxxxxxxxx>]

** Also affects: linux (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu Artful)
       Status: New => Fix Committed

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