Arch Linux

Im3rik

Member

Registered: 2019-11-09

Posts: 31

Kernel 5.4.14 broke hibernate: Not enough swap space for hibernation

Using the latest kernel 5.4.14 my hibernate doesn't work anymore.

$ systemctl hibernate
Failed to hibernate system via logind: Not enough swap space for hibernation

even though I definitely have enough swap space available:

$ swapon
NAME           TYPE      SIZE USED PRIO
/dev/nvme0n1p7 partition   8G   0B   -2

$ free -h
              total        used        free      shared  buff/cache   available
Mem:          7.5Gi       1.0Gi       5.8Gi       245Mi       745Mi       6.0Gi
Swap:         8.0Gi          0B       8.0Gi

If I boot to linux-lts 4.19.98-1 without changing anything else, everything works perfectly.
I don't know when exactly this broke, but a few weeks back everything worked as well.

bidetaggle

Member

Registered: 2018-12-22

Posts: 12

Re: Kernel 5.4.14 broke hibernate: Not enough swap space for hibernation

If I boot to linux-lts 4.19.98-1 without changing anything else, everything works perfectly.
I don't know when exactly this broke, but a few weeks back everything worked as well.

What kernel do you use when you're not booting on this one? It looks like it comes from a kernel update then.

Im3rik

Member

Registered: 2019-11-09

Posts: 31

Re: Kernel 5.4.14 broke hibernate: Not enough swap space for hibernation

Using the latest kernel 5.4.14

I just updated to this one from 5.4.13 hoping it would fix my issue. So it's definitely not working with these two.
I guess it must have been an update about 1-2 months ago.

hills_of_eternity

Member

From: Moscow

Registered: 2017-04-28

Posts: 22

Website

Re: Kernel 5.4.14 broke hibernate: Not enough swap space for hibernation

Using the latest kernel 5.4.14

I just updated to this one from 5.4.13 hoping it would fix my issue. So it's definitely not working with these two.
I guess it must have been an update about 1-2 months ago.

Did you fix it? I've ran into this issue too few month ago.

Im3rik

Member

Registered: 2019-11-09

Posts: 31

Re: Kernel 5.4.14 broke hibernate: Not enough swap space for hibernation

Unfortunately no. I'm still hoping for some kernel update to fix it eventually.

hills_of_eternity

Member

From: Moscow

Registered: 2017-04-28

Posts: 22

Website

Re: Kernel 5.4.14 broke hibernate: Not enough swap space for hibernation

Unfortunately no. I'm still hoping for some kernel update to fix it eventually.

Hi, i'm going to tell you what I've found.
Actually it is not a kernel issue but systemd issue (at least looks like). I've tried to downgrade both linux and systemd pakages and realized that only systemd downgrade is helpful. I've pinned
systemd-243.162-2-x86_64.pkg.tar.xz this one but you can look for newer version that also works.

Last edited by hills_of_eternity (2020-02-17 00:09:11)

Im3rik

Member

Registered: 2019-11-09

Posts: 31

Re: Kernel 5.4.14 broke hibernate: Not enough swap space for hibernation

Thanks for sharing your research.
Why does it work with the current linux-lts kernel without switching systemd version though?
Or do I miss something? Does the lts kernel use another systemd version?

hills_of_eternity

Member

From: Moscow

Registered: 2017-04-28

Posts: 22

Website

Re: Kernel 5.4.14 broke hibernate: Not enough swap space for hibernation

Thanks for sharing your research.
Why does it work with the current linux-lts kernel without switching systemd version though?
Or do I miss something? Does the lts kernel use another systemd version?

hmmm... for me it doesn't. I've tried to downgrade and switching to lts/ck/fsync kernels at first.
And then i downgraded systemd.

Current kernel hibernates well.

[ab@pussy ~]$ uname -a
Linux pussy 5.5.3-arch1-1 #1 SMP PREEMPT Tue, 11 Feb 2020 15:35:41 +0000 x86_64 GNU/Linux
[ab@pussy ~]$ yay -Q systemd
systemd 243.162-1

loqs

Member

Registered: 2014-03-06

Posts: 18,928

Re: Kernel 5.4.14 broke hibernate: Not enough swap space for hibernation

If you boot with the option systemd.log_level=debug more output should be produced relating to the failure to hibernate.

hills_of_eternity

Member

From: Moscow

Registered: 2017-04-28

Posts: 22

Website

Re: Kernel 5.4.14 broke hibernate: Not enough swap space for hibernation

If you boot with the option systemd.log_level=debug more output should be produced relating to the failure to hibernate.

Thank you, I've found in logs something like

systemd-logind[628]: Failed to open /home/swapfile: No such file or directory

I have to store swap in /home due to fast SSD, so i made override for systemd-logind.service like this

[Service]
ProtectHome=No

And issue has gone.

Last edited by hills_of_eternity (2020-02-17 23:44:28)

Im3rik

Member

Registered: 2019-11-09

Posts: 31

Re: Kernel 5.4.14 broke hibernate: Not enough swap space for hibernation

I still have this problem with kernel 5.6.2 and systemd 245.4-2.

If you boot with the option systemd.log_level=debug more output should be produced relating to the failure to hibernate.

I got these two messages after enabling the kernel option:

systemd-logind[480]: /dev/nvme0n1p7: is a candidate device.
systemd-logind[480]: No swap partitions or files matching resume config were found in /proc/swaps.

/dev/nvme0n1p7 is my swap partition and /proc/swaps looks like this:

Filename				Type		Size	Used	Priority
/dev/nvme0n1p7                          partition	8388604	0	-2

loqs

Member

Registered: 2014-03-06

Posts: 18,928

Re: Kernel 5.4.14 broke hibernate: Not enough swap space for hibernation

@lm3rik what is the output of

cat /proc/cmdline

Im3rik

Member

Registered: 2019-11-09

Posts: 31

Re: Kernel 5.4.14 broke hibernate: Not enough swap space for hibernation

My kernel parameters are

root=UUID=510cadba-092a-44f0-8782-53ea82fdebc7 resume=UUID=510cadba-092a-44f0-8782-53ea82fdebc7 rw systemd.log_level=debug quiet random.trust_cpu=on initrd=\initramfs-linux.img

loqs

Member

Registered: 2014-03-06

Posts: 18,928

Re: Kernel 5.4.14 broke hibernate: Not enough swap space for hibernation

What is the output of

# blkid

Im3rik

Member

Registered: 2019-11-09

Posts: 31

Re: Kernel 5.4.14 broke hibernate: Not enough swap space for hibernation

It's

/dev/nvme0n1p1: LABEL="Wiederherstellung" BLOCK_SIZE="512" UUID="1C1A24D31A24AC28" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="cc85e047-8005-4cbb-9ff5-0707f173fac5"
/dev/nvme0n1p2: UUID="9488-0019" BLOCK_SIZE="512" TYPE="vfat" PARTLABEL="EFI system partition" PARTUUID="4336566d-80ac-46b5-9730-6d9e531f0b81"
/dev/nvme0n1p4: BLOCK_SIZE="512" UUID="B40E81530E811012" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="b6d52612-fda0-457e-82cd-2474a935e78d"
/dev/nvme0n1p5: UUID="2ebae96a-9d92-4095-8299-068beacab285" BLOCK_SIZE="4096" TYPE="ext4" PARTLABEL="Arch home" PARTUUID="08488340-21ed-48b1-922f-638567442972"
/dev/nvme0n1p6: UUID="510cadba-092a-44f0-8782-53ea82fdebc7" BLOCK_SIZE="4096" TYPE="ext4" PARTLABEL="Arch root" PARTUUID="df0e376f-b396-41d1-8624-e80eaad6373d"
/dev/nvme0n1p7: UUID="4a8af29b-38f9-4e55-a46b-3357f314bae8" TYPE="swap" PARTLABEL="Swap" PARTUUID="b21cf04e-fcde-4db0-b7a0-276d8d6cc634"
/dev/nvme0n1p3: PARTLABEL="Microsoft reserved partition" PARTUUID="19d23710-90bc-4c65-8a84-177a4ecd7c35"

loqs

Member

Registered: 2014-03-06

Posts: 18,928

Re: Kernel 5.4.14 broke hibernate: Not enough swap space for hibernation

root=UUID=510cadba-092a-44f0-8782-53ea82fdebc7 resume=UUID=510cadba-092a-44f0-8782-53ea82fdebc7

Specifies the resume partition is the same as the root partition.

/dev/nvme0n1p6: UUID="510cadba-092a-44f0-8782-53ea82fdebc7" BLOCK_SIZE="4096" TYPE="ext4" PARTLABEL="Arch root" PARTUUID="df0e376f-b396-41d1-8624-e80eaad6373d"

not

/dev/nvme0n1p7: UUID="4a8af29b-38f9-4e55-a46b-3357f314bae8" TYPE="swap" PARTLABEL="Swap" PARTUUID="b21cf04e-fcde-4db0-b7a0-276d8d6cc634"

Im3rik

Member

Registered: 2019-11-09

Posts: 31

Re: Kernel 5.4.14 broke hibernate: Not enough swap space for hibernation

Oh wow, you're right. Now it works just fine.
That also explains why hibernation worked using the lts kernel. I used another boot entry for the lts kernel and I didn't specify a resume partition.

However how could this work a few months ago? I'm pretty sure I haven't changed the boot entry since then.

Thank you very much for your help.

loqs

Member

Registered: 2014-03-06

Posts: 18,928

Re: Kernel 5.4.14 broke hibernate: Not enough swap space for hibernation

Additional checks were introduced in systemd 244.