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[Launchpad Bug Tracker <1611360@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package multipath-tools -
0.5.0+git1.656f8865-5ubuntu7.1

---------------
multipath-tools (0.5.0+git1.656f8865-5ubuntu7.1) yakkety; urgency=medium

  * Cherrypick from upstream:
    - Use 64-bit int for command key (LP: #1611360)

 -- Jon Grimm <jon.grimm@xxxxxxxxxxxxx>  Mon, 07 Nov 2016 17:06:22 +0100

** Changed in: multipath-tools (Ubuntu Yakkety)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1611360

Title:
  Xenial 32-bit: multipath exits with SIGSEGV

Status in multipath-tools package in Ubuntu:
  Fix Released
Status in multipath-tools source package in Xenial:
  Fix Released
Status in multipath-tools source package in Yakkety:
  Fix Released

Bug description:
  [Impact]

   * The CLI for multipath segfaults when on 32-bit platforms.

   * As example, a simple 'sudo multipathd -k"show paths"' will blow up,
     assuming you have a multipath configured.  

   * The ultimate cause of the bug is the codebase not correctly dealing
  with bit flags that have exceeded the 32-bit natural word size on
  32-bit architectures.  The fix has been cherrypicked from upstream.

  
  [Test Case]

   * You'll need to setup a 32-bit (e.g. i386) multipath environment to
  test.  I used qemu/kvm.

   * See https://bugs.launchpad.net/ubuntu/+source/multipath-
  tools/+bug/1611360/comments/4

   * Once configured, type "sudo multipathd -k"show paths" and it will
  fail with a segfault on 32-bit architectures, but succeed on 64-bit architectures.  

  
  [Regression Potential] 

   * Limited potential as only affects flag bits > 32-bits.  In addition
  to testing commands affected by these bits on 32-bit platform (i386),
  I've regression tested that these commands work on 64-bit platform
  (amd64).

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