** Also affects: linux (Ubuntu Yakkety)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Xenial)
Status: New => Confirmed
** Changed in: linux (Ubuntu Yakkety)
Status: New => Confirmed
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Colin Ian King (colin-king)
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu Xenial)
Importance: Undecided => Critical
** Changed in: linux (Ubuntu Yakkety)
Importance: Undecided => Critical
** Changed in: linux (Ubuntu Xenial)
Assignee: (unassigned) => Andy Whitcroft (apw)
** Changed in: linux (Ubuntu Yakkety)
Assignee: (unassigned) => Andy Whitcroft (apw)
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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:
Confirmed
Status in linux source package in Xenial:
Confirmed
Status in linux source package in Yakkety:
Confirmed
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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