[Bug 2154768] [NEW] 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.

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 -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb 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. Status in linux package in Ubuntu: New Bug description: == 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2154768/+subscriptions