On Sun, Feb 27, 2022 at 8:07 AM Tom Lane <tgl@sss.pgh.pa.us> wrote:
> I have observed this three times in the REL_11 branch, once
> in REL_12, and a couple of times last summer before it occurred
> to me to start keeping notes. Over that time the machine has
> been running various patchlevels of FreeBSD 13.0.
FTR I noticed that my animal elver hadn't reported for a while and
logged and found it locked up, a bit like that, but in test_shm_mq
rather than PHJ. It's FreeBSD 13.1 on a fairly fast 16 way amd64 (in
a jail), and it was testing REL_12_STABLE, so using poll() for
WaitEventSetWaitBlock(). When I connected a debugger then
disconnected, it was unblocked and continued. Unfortunately I didn't
get any new information :-(