** Changed in: snappy
       Status: New => In Progress

** Changed in: snappy
   Importance: Undecided => Critical

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  unexpectedly large memory usage of mounted snaps

Status in Snappy:
  In Progress
Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Xenial:
  Fix Released
Status in linux source package in Yakkety:
  Fix Released
Status in linux source package in Zesty:
  Fix Committed

Bug description:
  This is a tracking bug for what might be kernel bugs or kernel
  configuration changes.

  As described [1], memory used by simply mounting a squashfs file (even
  an empty one) is ranging from almost nothing (on certain
  distributions) to 131MB on Ubuntu 16.04 and 16.10 on a single-core
  machine or VM.

  The amount is excessive and should be investigated by the kernel team.
  We may need to change the kernel or at least the configuration we ship
  in our packages and kernel snaps.

  [1] https://github.com/zyga/mounted-fs-memory-checker

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