I can confirm that the zfcpdump-kernel package in version 5.15-0ubuntu1 located in jammy-proposed works fine on s390x. I've dumped using an LPAR loading the previously prepared LUN that incl. the dumper. A proper dump was written, that can be read, opened and analyzed.
$ apt-cache policy zfcpdump-kernel zfcpdump-kernel: Installed: 5.15-0ubuntu1 Candidate: 5.15-0ubuntu1 Version table: *** 5.15-0ubuntu1 500 500 http://us.ports.ubuntu.com/ubuntu-ports jammy-proposed/universe s390x Packages 100 /var/lib/dpkg/status 5.4-0ubuntu2 500 500 http://ports.ubuntu.com/ubuntu-ports jammy/universe s390x Packages $ sudo zgetdump -i /dev/mapper/mpatha-part1 General dump info: Dump format........: elf Version............: 1 UTS node name......: zbox UTS kernel release.: 5.15.0-23-generic UTS kernel version.: #23-Ubuntu SMP Fri Mar 11 14:53:58 UTC 2022 System arch........: s390x (64 bit) CPU count (online).: 8 Dump memory range..: 32768 MB Memory map: 0000000000000000 - 00000007ffffffff (32768 MB) (more details see attachment) ** Attachment added: "zfcp-dump-test.txt" https://bugs.launchpad.net/ubuntu/+source/zfcpdump-kernel/+bug/1965766/+attachment/5571955/+files/zfcp-dump-test.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1965766 Title: zfcpdump-kernel update to v5.15 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfcpdump-kernel/+bug/1965766/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs