[Bug]: Desktop client fills all available memory and crashes after Steam client is launched

[roundoutandabout]

⚠️ Before submitting, please verify the following: ⚠️

• This is a bug, not a question or a configuration issue.
• This issue is not already reported on Github (I've searched it).
• Nextcloud Server and Desktop Client are up to date. See Server Maintenance and Release Schedule and Desktop Releases for supported versions.
• I agree to follow Nextcloud's Code of Conduct

Bug description

Under certain conditions the Nextcloud desktop client fills all available memory and then eventually crashes.

Steps to reproduce

1. Launch Nextcloud desktop client
2. The client is in the process of uploading files or checking for changes in remote
3. Launch the Steam client
4. Nextcloud desktop client stops responding and starts using all available memory until it crashes

Expected behavior

The Nextcloud doesn't use excessive memory, stays responsive and doesn't crash.

Which files are affected by this bug

No files affected

Operating system

Linux

Which version of the operating system you are running.

Manjaro Stable 2022-06-12

Package

Distro package manager

Nextcloud Server version

24.0.1 (snap)

Nextcloud Desktop Client version

3.5.1

Is this bug present after an update or on a fresh install?

Fresh desktop client install

Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

Are you using an external user-backend?

• Default internal user-backend
• LDAP/ Active Directory
• SSO - SAML
• Other

Nextcloud Server logs

No response

Additional info

The Steam client is steam-native package, version 1.0.0.70-2
When exiting Steam, the memory leak continues.
When Steam client is launched first and then Nextcloud client, the issue does not occur.

Unfortunately can't include the desktop client logs because of too much sensitive data.

[claucambra]

Hi @roundoutandabout does this also happen when using the AppImage version of the client?

[roundoutandabout]

Sorry @claucambra, my nextcloud instance is offline for the time being. I have to postpone the investigation.

[arch-user-france1]

confirm on macos M2

definitely thrashing with RAM, using up to 4GB and 99.3% cpu
looks like a memory leak, though it manages to free some memory sometimes. doesn't respond to anything anymore. happens while syncing.

probably crashes because of the kernel OOM thing.

[timlisemer]

Same on Fedora 38, utilizes 6% CPU usage while in idle (All synced) until it fills up my 32 GB of ram and crashes my system. Happens with both the appimage and fedora rpm version. But i cant tell if it is steam related however steam was running everytime this happened

[arch-user-france1]

Why would steam be related to this Nextcloud problem?

[timlisemer]

I just responded to the original issue where steam was specifically mentioned. I am saying i am experiencing everything that was mentioned in the original issue but cant confirm the steam part, because it also sounds weird to me

[roundoutandabout]

Why would steam be related to this Nextcloud problem?

Maybe it's not. I've described the way how I was able reproduce the crash.

[budyakovan]

@roundoutandabout What file system are you using? If BTRFS, try installing games on EXT4. I did this with CS2 and the memory leaks stopped.

[roundoutandabout]

@budyakovan I use ext4.

[roundoutandabout]

Hi @roundoutandabout does this also happen when using the AppImage version of the client?

The issue is reproducible with the official AppImage client version 3.10.0

[MoritzLange]

Same problem here, with Nextcloud Desktop Client Version 3.10.1 on Manjaro 6.6.1-1, Steam version 1.0.0.78-4.

Everything works as expected until I launch Steam. Right after launching Steam, even if I immediately kill it again, Nextcloud stops responding, starts using 100% of one CPU core and slowly and steadily fills up memory until the system freezes and then kills the Nextcloud process. There is no other way to set this off, it only (but reliably) happens when starting Steam. It's been like this for a while now.

I only rarely start Steam on my system while Nextcloud client is always running. Without Steam I never have any issues with memory.