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[Adam Conrad <adconrad@xxxxxxx>]

** Also affects: procps (Ubuntu Utopic)
   Importance: Undecided
       Status: New

** Also affects: procps (Ubuntu Trusty)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1415481

Title:
  default mmap_min_addr for arm64 prevents running arm32 applications

Status in procps package in Ubuntu:
  New
Status in procps source package in Trusty:
  New
Status in procps source package in Utopic:
  New

Bug description:
  Executing 32-bit arm binaries as user fails on arm64:

  # file hello
  hello: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV),
  statically linked, for GNU/Linux 2.6.32,
  BuildID[sha1]=c37a3b366d645eee600963a535370fa0bad9b2c0, not stripped
  # ./hello
  hello world
  # su - linaro
  $ /root/hello
  Segmentation fault

  Root cause was identified to /etc/sysctl.d/10-zeropage.conf, which is
  set on arm64 to 65536. To run legacy binaries, this should be set to
  32768 like on armhf anr armel.

  Reference discussion:

  http://lists.infradead.org/pipermail/linux-arm-
  kernel/2015-January/320454.html

  Affects trusty, utopic and vivid

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