Desktop freezes for 30s to a 1min + Firefox crashes

[Célian Godefroid]

My desktop freezes for no obvious reason. I manage to unfreeze it by locking the session, which responds 15/20s after lock input. After unlocking, computer is responsive, all my apps are still here, except for Firefox which is closed. When I open it, my tabs are back. No crash report in Firefox is available for this bug.

Ubuntu 23.10

ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: xorg 1:7.7+23ubuntu2
ProcVersionSignature: Ubuntu 6.5.0-21.21-generic 6.5.8
Uname: Linux 6.5.0-21-generic x86_64
ApportVersion: 2.27.0-0ubuntu5
Architecture: amd64
BootLog: Error: [Errno 13] Permission non accordée: '/var/log/boot.log'
CasperMD5CheckResult: unknown
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Tue Mar 5 16:57:37 2024
DistUpgraded: 2023-11-04 12:10:55,488 DEBUG Running PostInstallScript: '/usr/lib/ubuntu-advantage/upgrade_lts_contract.py'
DistroCodename: mantic
DistroVariant: ubuntu
DpkgLog:

ExtraDebuggingInterest: Yes
GraphicsCard:
 Intel Corporation CometLake-H GT2 [UHD Graphics] [8086:9bc4] (rev 05) (prog-if 00 [VGA controller])
   Subsystem: Dell CometLake-H GT2 [UHD Graphics] [1028:098f]
   Subsystem: Dell TU117M [GeForce GTX 1650 Ti Mobile] [1028:098f]
InstallationDate: Installed on 2021-04-12 (1058 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
MachineType: {report['dmi.sys.vendor']} {report['dmi.product.name']}
ProcEnviron:
 LANG=fr_FR.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.5.0-21-generic root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: Upgraded to mantic on 2023-11-04 (122 days ago)
dmi.bios.date: 12/18/2023
dmi.bios.release: 1.28
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.28.0
dmi.board.name: 0PV91W
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.28.0:bd12/18/2023:br1.28:svnDellInc.:pnXPS179700:pvr:rvnDellInc.:rn0PV91W:rvrA00:cvnDellInc.:ct10:cvr:sku098F:
dmi.product.family: XPS
dmi.product.name: XPS 17 9700
dmi.product.sku: 098F
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.115-1
version.libgl1-mesa-dri: libgl1-mesa-dri 23.2.1-1ubuntu3.1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:21.1.7-3ubuntu2.7
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-3
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20210115-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2build1

[Daniel van Vugt (vanvugt)]

Does the problem occur if Firefox is never opened?

Do you find any files in /var/crash ?

[Célian Godefroid (celiangodefroid)]

Nothing in /var/crash.

Can't recall the problem occurring without Firefox opened, but the problem doesn't arrive that often, and I kind of always have Firefox opened.

[Daniel van Vugt (vanvugt)]

Next time a freeze happens, please:

1. Wait for it to unfreeze.

2. Run: journalctl -b0 > journal.txt

3. Attach the resulting text file here.

[Célian Godefroid (celiangodefroid)]

Happened again, I believe, around 13:16. Here is log

[Daniel van Vugt (vanvugt)]

Perfect, thanks. That log shows clearly that the kernel ran out of memory, and the main causes are:

1. Firefox
2. Thunderbird
3. Teams
4. GNOME Shell

It seems to be only one Firefox tab causing most of the problem (10 gigabytes).

[Daniel van Vugt (vanvugt)]

This might be helpful:

https://support.mozilla.org/en-US/kb/firefox-uses-too-much-memory-or-cpu-resources