Comment 28 for bug 1970672

For item 1:

 * Confirm that makedumpfile works as expected by triggering a kdump.

I can confirm that makedumpfile 1:1.6.7-1ubuntu2.5 from focal-proposed/main worked well when I triggered a dump in a system:

ubuntu@fabio-small-makedumpfile:~$ sudo hostnamectl
   Static hostname: fabio-small-makedumpfile
         Icon name: computer-vm
           Chassis: vm
        Machine ID: dee0adfb9aa54246b4d1e2fc62dd50f7
           Boot ID: adba6ba3977f4c758a7008013a7a6d1e
    Virtualization: oracle
  Operating System: Ubuntu 20.04.6 LTS
            Kernel: Linux 5.15.0-1049-oracle
      Architecture: x86-64
ubuntu@fabio-small-makedumpfile:~$ sudo kdump-config show
DUMP_MODE: kdump
USE_KDUMP: 1
KDUMP_SYSCTL: kernel.panic_on_oops=1
KDUMP_COREDIR: /var/crash
crashkernel addr: 0x2c000000
0xfd7f000000
   /boot/vmlinuz-5.15.0-1049-oracle
kdump initrd:
   /boot/initrd.img-5.15.0-1049-oracle
current state: ready to kdump

kexec command:
  /sbin/kexec -p --command-line="BOOT_IMAGE=/boot/vmlinuz-5.15.0-1049-oracle root=UUID=7d8611b4-d3e7-4f1a-a8f9-e1a7e5a2d2f9 ro console=tty1 console=ttyS0 nvme.shutdown_timeout=10 libiscsi.debug_libiscsi_eh=1 crash_kexec_post_notifiers reset_devices systemd.unit=kdump-tools-dump.service nr_cpus=1 irqpoll nousb" --initrd=/boot/initrd.img-5.15.0-1049-oracle /boot/vmlinuz-5.15.0-1049-oracle
ubuntu@fabio-small-makedumpfile:~$ sudo dpkg -l makedumpfile
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-==============-==================-============-=================================
ii makedumpfile 1:1.6.7-1ubuntu2.5 amd64 VMcore extraction tool
ubuntu@fabio-small-makedumpfile:~$ sudo apt-cache policy makedumpfile
makedumpfile:
  Installed: 1:1.6.7-1ubuntu2.5
  Candidate: 1:1.6.7-1ubuntu2.5
  Version table:
 *** 1:1.6.7-1ubuntu2.5 500
        500 http://archive.ubuntu.com/ubuntu focal-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     1:1.6.7-1ubuntu2.4 500
        500 http://phx-ad-3.clouds.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages
     1:1.6.7-1ubuntu2 500
        500 http://phx-ad-3.clouds.archive.ubuntu.com/ubuntu focal/main amd64 Packages

Output showing that it completed well:

[ 54.490112] kdump-tools[676]: Starting kdump-tools:
[ 54.876357] kdump-tools[686]: * running makedumpfile -c -d 31 /proc/vmcore /var/crash/202312151524/dump-incomplete
Checking for memory holes : [100.0 %] \ [ 204.391465] reboot: Restarting system

And when I look at the crash, it's properly compressed (system had 1TB of RAM):

ubuntu@fabio-small-makedumpfile:~$ ls -lh /var/crash/202312151524
total 2.3G
-rw------- 1 root root 126K Dec 15 15:26 dmesg.202312151524
-rw------- 1 root root 2.3G Dec 15 15:26 dump.202312151524

Regards,
Fabio Martins