The problem doesn't occur on Raspberry Pi OS so I thought it might be helpful to compare the following for each platform:
/boot/config-$(uname -r) /boot/firmware/cmdline.txt /boot/firmware/config.txt dmesg The zip file attached contains the files. ** Attachment added: "Ubuntu and RPI OS kernel config, cmdline, config and dmesg" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2099935/+attachment/5860496/+files/ubuntu_vs_rpios.zip -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2099935 Title: PCI initialization failure following kernel panic reboot on Raspberry Pi CM4 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2099935/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs