You have been subscribed to a public bug:
After doing `sudo apt upgrade`, the above mentioned linux hwe kernel was
installed.
Start-Date: 2025-03-05 15:02:08
Commandline: apt upgrade
Requested-By: user (1000)
Install: linux-objects-nvidia-470-6.11.0-19-generic:amd64
(6.11.0-19.19~24.04.1, automatic), linux-hwe-6.11-tools-6.11.0-19:amd64
(6.11.0-19.19~24.04.1, automatic), linux-modules-extra-6.11.0-19-generic:amd64
(6.11.0-19.19~24.04.1, automatic),
linux-modules-nvidia-470-6.11.0-19-generic:amd64 (6.11.0-19.19~24.04.1,
automatic), linux-image-6.11.0-19-generic:amd64 (6.11.0-19.19~24.04.1,
automatic), linux-tools-6.11.0-19-generic:amd64 (6.11.0-19.19~24.04.1,
automatic), linux-signatures-nvidia-6.11.0-19-generic:amd64
(6.11.0-19.19~24.04.1, automatic), linux-hwe-6.11-headers-6.11.0-19:amd64
(6.11.0-19.19~24.04.1, automatic), linux-headers-6.11.0-19-generic:amd64
(6.11.0-19.19~24.04.1, automatic), linux-modules-6.11.0-19-generic:amd64
(6.11.0-19.19~24.04.1, automatic)
Upgrade: linux-headers-generic-hwe-24.04:amd64 (6.8.0-52.53,
6.11.0-19.19~24.04.1), linux-generic-hwe-24.04:amd64 (6.8.0-52.53,
6.11.0-19.19~24.04.1), linux-tools-common:amd64 (6.8.0-54.56, 6.8.0-55.57),
google-chrome-stable:amd64 (133.0.6943.141-1, 134.0.6998.35-1),
linux-modules-nvidia-470-generic-hwe-24.04:amd64 (6.8.0-52.53,
6.11.0-19.19~24.04.1), linux-image-generic-hwe-24.04:amd64 (6.8.0-52.53,
6.11.0-19.19~24.04.1), linux-libc-dev:amd64 (6.8.0-54.56, 6.8.0-55.57)
End-Date: 2025-03-05 15:03:19
After rebooting, the new linux kernel fails to correctly detect the CPU
core and thread count. This system CPU has 16 cores, 32 threads and
System Monitor normally shows 32 CPU virtual cores. After the upgrade,
System Monitor now shows only 1 CPU virtual core. The upgrade corrupted
my system.
To circumvent this issue, I have to boot Ubuntu 24.04 using the
linux-image-6.8.0-52-generic 6.8.0-52.53 kernel and not use the hwe kernel.
I have submitted the relevant `ubuntu-bug` report.
How do I fix this issue?
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: ubuntu-release-upgrader-core 1:24.04.22 [origin: unknown]
ProcVersionSignature: Ubuntu 6.11.0-19.19~24.04.1-generic 6.11.11
Uname: Linux 6.11.0-19-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.28.1-0ubuntu3.1
Architecture: amd64
CasperMD5CheckResult: pass
CrashDB: ubuntu
CrashReports: 640:1000:109:51661892:2025-03-03 02:30:21.363597393
+0800:2025-03-04 00:28:42.503056252
+0800:/var/crash/_opt_brave.com_brave_brave.1000.crash
CurrentDesktop: ubuntu:GNOME
Date: Thu Mar 6 12:16:18 2025
InstallationDate: Installed on 2024-12-07 (89 days ago)
InstallationMedia: Ubuntu 24.04.1 LTS "Noble Numbat" - Release amd64
(20240827.1)
PackageArchitecture: all
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
XDG_RUNTIME_DIR=<set>
SourcePackage: ubuntu-release-upgrader
Symptom: release-upgrade
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux-meta-hwe-6.11 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug dist-upgrade noble third-party-packages
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linux-generic-hwe-24.04 version 6.11.0-19.19~24.04.1 fail to properly detect
CPU core and thread count
https://bugs.launchpad.net/bugs/2100999
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