Exact same problem:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819915 even on
kernel 5!

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  [Asus 1000HE] s2disk/hibernate hangs during saving of image data

Status in Linux:
Status in linux package in Ubuntu:

Bug description:
  Hibernation with the pm-hibernate command works fine on a freshly
  booted system, but when a significant portion of the RAM is in use,
  for instance by starting gimp, google-chrome and firefox at the same
  time, it stalls at the start of the saving of the image data:

  s2disk: Snapshotting system
  s2disk: System snapshot ready. Preparing to write
  s2disk: Image size: 441652 kilobytes
  s2disk: Free swap: 1798624 kilobytes
  s2disk: Saving 110413 image data pages (press backspace to abort) ...   0%

  The system is not usable at this point, although alt-sysrq still
  works. It looks like some sort of deadlock.

  The system is an Asus eeePC 1000HE with 2GB RAM and a 2GB swap
  partition and a Samsung SSD 840 EVO. The Ubuntu release is 14.04
  LTS. The kernel package is linux-image-3.13.0-27-generic version
  3.13.0-27.50 (32 bit).

  I found a kernel bug report that looks exactly the same:


  In that bug report, the problem was bisected to commit a1c3bfb2.
  This commit is part of the 3.14 kernel, but was apparently backported
  to the 3.13 Ubuntu kernel. I've rebuild the kernel package with this
  commit reverted, and it seems to fix this issue for me.
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: i386
   /dev/snd/controlC0:  dick       1719 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=c6b78f80-b4a1-4b1a-91b4-8ae5c41b36f4
  InstallationDate: Installed on 2013-04-28 (408 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release i386 (20130424)
  MachineType: ASUSTeK Computer INC. 1000HE
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-27-generic 
root=UUID=54684f57-2a33-403f-ae4d-ad6b3d0168ea ro acpi_osi=Linux 
acpi_backlight=vendor quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.13.0-27.50hib-generic 3.13.11
   linux-restricted-modules-3.13.0-27-generic N/A
   linux-backports-modules-3.13.0-27-generic  N/A
   linux-firmware                             1.127.2
  Tags:  trusty
  Uname: Linux 3.13.0-27-generic i686
  UpgradeStatus: Upgraded to trusty on 2014-04-26 (45 days ago)
  UserGroups: adm cdrom dialout dip fuse lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 06/24/2009
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0902
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: 1000HE
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: x.xx
  dmi.chassis.asset.tag: 0x00000000
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTek Computer INC.
  dmi.chassis.version: x.x
  dmi.product.name: 1000HE
  dmi.product.version: x.x
  dmi.sys.vendor: ASUSTeK Computer INC.

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