kernel-packages team mailing list archive

[Luis Henriques <luis.henriques@xxxxxxxxxxxxx>]

I've verified that the config files used to build the Utopic and Trusty
kernels currently in proposed (3.16.0-36.48 and 3.13.0-51.84) contain
CONFIG_DEFAULT_MMAP_MIN_ADDR set to 32768.  I'm thus tagging this bug as
verified.

** Tags removed: verification-needed-trusty verification-needed-utopic
** Tags added: verification-done-trusty verification-done-utopic

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https://bugs.launchpad.net/bugs/1418140

Title:
  CONFIG_DEFAULT_MMAP_MIN_ADDR needs to match on armhf and arm64
  otherwise arm64 cannot run armhf binaries

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Trusty:
  Fix Committed
Status in linux source package in Utopic:
  Fix Committed

Bug description:
  Attempting to run 32bit binaries on arm64 triggers applications to be
  Killed, as the CONFIG_DEFAULT_MMAP_MIN_ADDR used on armhf is not valid
  on arm64.  While this can be overriden via sysctl, the default should
  be sane.

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