Public bug reported:
== Steps to reproduce ==
1. Run: sudo apt dist-upgrade
2. Reboot into the newly installed kernel 7.0.0-22-generic
3. System freezes immediately during boot with a kernel panic
== Observed behaviour ==
The screen shows:
Kernel Panic!
Please reboot your computer.
Fatal exception in interrupt
With a Tux ASCII-Art in the top left corner.
The CapsLock indicator LED starts blinking.
Neither short nor long press of the power button triggers a reboot.
A hardware reset (10 second power button hold) is required.
No crash dump is available despite kdump-tools being active,
suggesting the panic occurs before kdump is fully initialised.
The entry for this boot attempt does not appear in journalctl.
== Expected behaviour ==
System boots normally into 7.0.0-22-generic, as it does with
7.0.0-15-generic.
== Workaround ==
Boot into the previous kernel (7.0.0-15-generic) via GRUB advanced
options.
== System information ==
Package: linux-image-7.0.0-22-generic 7.0.0-22.22
Working kernel: 7.0.0-15-generic
System: Lenovo ThinkPad T14 Gen 5
Product name: 21MLCTO1WW
BIOS version: N47ET28W (1.17)
Architecture: x86_64
Ubuntu release: 26.04 "Resolute Raccoon"
No external PPAs for kernel packages
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "lspci-vnvn.log"
https://bugs.launchpad.net/bugs/2154768/+attachment/5974946/+files/lspci-vnvn.log
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https://bugs.launchpad.net/bugs/2154768
Title:
After upgrading to linux-image-7.0.0-22-generic on Ubuntu 26.04
"Resolute Raccoon", the system fails to boot and shows a kernel panic.
The previous kernel (7.0.0-15-generic) boots normally.
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