The recent Cockpit update in Fedora 39 failed to build due to unit test regressions on i686 [1]. This started with pcp-6.2.2-1.fc39 but *only* on i686. Later Fedora version don't build pcp on i686 any more, so the status there is unknown (and uninteresting).

I can reproduce this with `fedpkg mockbuild -N --mock-config fedora-39-i386`, and --shell.

When I downgrade to 6.2.1, doing a pmFetch() and iterating over pmResult.vset[i] for i between 0 and pmResult.numpmid works fine. In our tests we usually expect small values like 1 or 2.

But with 6.2.2, the test started give completely bogus results:

(gdb) p *result
$2 = {timestamp = {tv_sec = 1717407857, tv_usec = 0}, numpmid = 998643, vset = {0x0}}

or in another run

(gdb) p *result
$2 = {timestamp = {tv_sec = 1717407619, tv_usec = 0}, numpmid = 233042, vset = {0x0}}


This is unreasonably high and looks rather random (corrupted memory), and vset is NULL.

I don't have a standalone reproducer yet, just `./configure; make check` in Cockpit.

[1] https://koji.fedoraproject.org/koji/taskinfo?taskID=118496753 .
[1] https://bodhi.fedoraproject.org/updates/FEDORA-2024-729b5ca69e

Reproducible: Always