Arch Linux

navarroaxel

Member

Registered: 2018-11-04

Posts: 23

[SOLVED] Swap not working with Kernel 5.7.2

After the upgrade linux package from 5.4.15 to 5.7.2 the swapfile is not working anymore. The upgrade of systemd from 245.6-4 to 245.6-6 didn't fix it.

journalctl -b output about Swap:

PC systemd[1]: swapfile.swap: Swap process exited, code=exited, status=255/EXCEPTION
PC systemd[1]: swapfile.swap: Failed with result 'exit-code'.
PC systemd[1]: Failed to activate swap /swapfile.
PC systemd[1]: Dependency failed for Swap.

cat /etc/fstab

# /dev/mapper/volgroup0-lv0
UUID=7a0d5b9a-c10b-4943-8920-xxxxx       /               ext4            rw,relatime     0 1

# /dev/sda5
UUID=31cd2bd7-b2ad-4177-9510-xxxxx       /boot           ext4            rw,relatime     0 2

/swapfile none swap sw 0 0

Root partition encrypted with LUKS + LVM with the following instructions:

cryptsetup luksFormat /dev/sda3
cryptsetup open --type luks /dev/sda3 lvm
pvcreate --dataalignment 1m /dev/mapper/lvm
vgcreate volgroup0 /dev/mapper/lvm
lvcreate -l 100%FREE volgroup0 -n lv0 
modprobe dm_mod

Archlinux OS installed in February 2019.

Last edited by navarroaxel (2020-06-11 19:48:04)

loqs

Member

Registered: 2014-03-06

Posts: 18,063

Re: [SOLVED] Swap not working with Kernel 5.7.2

https://bugs.archlinux.org/task/66921 ?

xerxes_

Member

Registered: 2018-04-29

Posts: 799

Re: [SOLVED] Swap not working with Kernel 5.7.2

So is it related to swap file only or also to swap partition? Does LUKS and LVM has something to do with it?

loqs

Member

Registered: 2014-03-06

Posts: 18,063

Re: [SOLVED] Swap not working with Kernel 5.7.2

66921 only affects swap files on ext4 filesystems.

mjtullio

Member

Registered: 2014-12-22

Posts: 3

Re: [SOLVED] Swap not working with Kernel 5.7.2

I fixed the issue by removing my old swap file, which was created with fallocate, created a new one with dd and the issue disappeared. As seen on the wiki: https://wiki.archlinux.org/index.php/swap#Swap_file

First I disabled and removed my old swapfile located in / :

# swapoff -a
# rm /swapfile 

Then I made a 20Gb swapfile as recommended for my 16Gb Ram as I usually do hibernation:

# dd if=/dev/zero of=/swapfile bs=1M count=20480 status=progress
# chmod 600 /swapfile 
# mkswap /swapfile 
# swapon /swapfile

Reboot and that's it.

Cheers!

Last edited by mjtullio (2020-06-12 05:19:56)

wildw1ng

Member

Registered: 2020-03-17

Posts: 11

Re: [SOLVED] Swap not working with Kernel 5.7.2

thank you! worked for me too

vasyabelkin

Member

Registered: 2009-09-10

Posts: 20

Re: [SOLVED] Swap not working with Kernel 5.7.2

Thanks for the hint for dd. Solved for me also

taiongh

Member

Registered: 2018-10-04

Posts: 75

Re: [SOLVED] Swap not working with Kernel 5.7.2

thank you! worked for me too

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,221

Re: [SOLVED] Swap not working with Kernel 5.7.2

Closing to end the barrage of "me too" posts.

navarroaxel, if you need the thread re-opened, please ask a moderator via the report function.

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