Ubuntu is seeing the same failures after its own rebuilds of the package in Ubuntu noble, also on ppc64el only. I investigated if it was a known issue in pdbq or valgrind but did not find convincing matches. I'm also not certain if this is a single issue, or multiple. There are also some "Invalid opcode" errors from valgrind which I wonder might be a separate problem. In Ubuntu I'm going to test if disabling TEST5 is sufficient.
Ubuntu bug: https://bugs.launchpad.net/ubuntu/+source/pmdk/+bug/2061913 Upstream bug: https://github.com/pmem/pmdk/issues/5635
