This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 2037398 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2037398 Title: Unable to capture kernel crash dump using arm64 mantic 6.5.0-6-generic -proposed kernel Status in kdump-tools package in Ubuntu: New Status in kexec-tools package in Ubuntu: New Status in linux package in Ubuntu: Incomplete Bug description: While testing the 6.5.0-6-generic proposed arm64 generic kernel I encountered issues being able to use kdump. After enabling -proposed and installing the -proposed 6.5.0-6 kernel and rebooting I encountered the following: `kdump-config show` shows `current state: Not ready to kdump` and looking at the status of the kdump-tools services I see `Cannot determine the file type of /var/lib/kdump/vmlinuz` Full output: ``` ubuntu@cloudimg:~$ sudo kdump-config show DUMP_MODE: kdump USE_KDUMP: 1 KDUMP_COREDIR: /var/crash crashkernel addr: 0xde000000 /var/lib/kdump/vmlinuz: symbolic link to /boot/vmlinuz-6.5.0-6-generic kdump initrd: /var/lib/kdump/initrd.img: symbolic link to /var/lib/kdump/initrd.img-6.5.0-6-generic current state: Not ready to kdump kexec command: no kexec command recorded ubuntu@cloudimg:~$ sudo service kdump-tools status ● kdump-tools.service - Kernel crash dump capture service Loaded: loaded (/lib/systemd/system/kdump-tools.service; enabled; preset: enabled) Active: active (exited) since Tue 2023-09-26 09:21:44 UTC; 5min ago Process: 515 ExecStart=/etc/init.d/kdump-tools start (code=exited, status=0/SUCCESS) Main PID: 515 (code=exited, status=0/SUCCESS) CPU: 4min 21.329s Sep 26 09:16:14 cloudimg systemd[1]: Starting kdump-tools.service - Kernel crash dump capture service... Sep 26 09:16:24 cloudimg kdump-tools[515]: Starting kdump-tools: Sep 26 09:16:24 cloudimg kdump-tools[537]: * Creating symlink /var/lib/kdump/vmlinuz Sep 26 09:16:32 cloudimg kdump-tools[580]: kdump-tools: Generating /var/lib/kdump/initrd.img-6.5.0-6-generic Sep 26 09:21:42 cloudimg kdump-tools[537]: * Creating symlink /var/lib/kdump/initrd.img Sep 26 09:21:43 cloudimg kdump-tools[5538]: Cannot determine the file type of /var/lib/kdump/vmlinuz Sep 26 09:21:44 cloudimg kdump-tools[537]: * failed to load kdump kernel Sep 26 09:21:44 cloudimg kdump-tools[5539]: failed to load kdump kernel Sep 26 09:21:44 cloudimg systemd[1]: Finished kdump-tools.service - Kernel crash dump capture service. ubuntu@cloudimg:~$ ls -al /var/lib/kdump/vmlinuz lrwxrwxrwx 1 root root 29 Sep 26 09:16 /var/lib/kdump/vmlinuz -> /boot/vmlinuz-6.5.0-6-generic ubuntu@cloudimg:~$ file /var/lib/kdump/vmlinuz /var/lib/kdump/vmlinuz: symbolic link to /boot/vmlinuz-6.5.0-6-generic ubuntu@cloudimg:~$ sudo file /boot/vmlinuz-6.5.0-6-generic /boot/vmlinuz-6.5.0-6-generic: PE32+ executable (EFI application) Aarch64 (stripped to external PDB), for MS Windows, 2 sections ``` The reboot with 6.5.0-6 was successful and the reboot after linux-crashdump install was successful too. I used https://ubuntu.com/server/docs/kernel-crash-dump guide for installing linux-crashdump and attempting to trigger a dump. I used arm64 qcow cloud image from http://cloud- images.ubuntu.com/mantic/20230925/mantic-server-cloudimg-arm64.img to test the above emulated on amd64. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kdump-tools/+bug/2037398/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp