This bug was fixed in the package linux - 4.4.0-47.68
---------------
linux (4.4.0-47.68) xenial; urgency=low
[ Kamal Mostafa ]
* Release Tracking Bug
- LP: #1636941
* Add a driver for Amazon Elastic Network Adapters (ENA) (LP: #1635721)
- lib/bitmap.c: conversion routines to/from u32 array
- net: ethtool: add new ETHTOOL_xLINKSETTINGS API
- net: ena: Add a driver for Amazon Elastic Network Adapters (ENA)
- [config] enable CONFIG_ENA_ETHERNET=m (Amazon ENA driver)
* unexpectedly large memory usage of mounted snaps (LP: #1636847)
- [Config] switch squashfs to single threaded decode
-- Kamal Mostafa <ka...@canonical.com> Wed, 26 Oct 2016 10:47:55 -0700
** Changed in: linux (Ubuntu Xenial)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1636847
Title:
unexpectedly large memory usage of mounted snaps
Status in Snappy:
New
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 Committed
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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