[Bug 1752528] [NEW] initramfs swretu up wrong swap partition for resuming when zram-config is active

[Pierre-Etienne SCHNEIDER]

Public bug reported:

I have a low end laptop on which using zram to improve memory (2GB only)
is critical.

When I have zram-config installed and running, every kernel update tells
initramfs to try to resume from /dev/zram0 (which it can't it's
compressed virtual memory!)

At next reboot, computer locks up for one minute trying resuming from
/dev/zram0 which it can't, then throws an error message "invalid resume
partition" or the like, and proceeds on booting normally. Needless to
say, it also breaks suspend mode.

Is it possible to make initramfs-tools zram-aware or blacklist zram
devices as being candidates for resuming?

Yours truly. With great respect. Mr SCHNEIDER

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: initramfs-tools 0.130ubuntu3
ProcVersionSignature: Ubuntu 4.15.0-11.12-generic 4.15.5
Uname: Linux 4.15.0-11-generic x86_64
ApportVersion: 2.20.8-0ubuntu10
Architecture: amd64
CurrentDesktop: XFCE
Date: Thu Mar  1 10:10:19 2018
InstallationDate: Installed on 2017-11-29 (91 days ago)
InstallationMedia: Xubuntu 17.10 "Artful Aardvark" - Release amd64 (20171017.1)
PackageArchitecture: all
SourcePackage: initramfs-tools
UpgradeStatus: Upgraded to bionic on 2018-02-25 (3 days ago)

** Affects: initramfs-tools (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug bionic

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https://bugs.launchpad.net/bugs/1752528

Title:
  initramfs swretu up wrong swap partition for resuming when zram-config
  is active

Status in initramfs-tools package in Ubuntu:
  New

Bug description:
  I have a low end laptop on which using zram to improve memory (2GB
  only) is critical.

  When I have zram-config installed and running, every kernel update
  tells initramfs to try to resume from /dev/zram0 (which it can't it's
  compressed virtual memory!)

  At next reboot, computer locks up for one minute trying resuming from
  /dev/zram0 which it can't, then throws an error message "invalid
  resume partition" or the like, and proceeds on booting normally.
  Needless to say, it also breaks suspend mode.

  Is it possible to make initramfs-tools zram-aware or blacklist zram
  devices as being candidates for resuming?

  Yours truly. With great respect. Mr SCHNEIDER

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: initramfs-tools 0.130ubuntu3
  ProcVersionSignature: Ubuntu 4.15.0-11.12-generic 4.15.5
  Uname: Linux 4.15.0-11-generic x86_64
  ApportVersion: 2.20.8-0ubuntu10
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Thu Mar  1 10:10:19 2018
  InstallationDate: Installed on 2017-11-29 (91 days ago)
  InstallationMedia: Xubuntu 17.10 "Artful Aardvark" - Release amd64 (20171017.1)
  PackageArchitecture: all
  SourcePackage: initramfs-tools
  UpgradeStatus: Upgraded to bionic on 2018-02-25 (3 days ago)

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