I have some good news and some bad news about the state of the threads
branch on Darwin/PPC.
Seeing today that there had been additional commits to this branch in
the past few days, I tested it today for the first time since commit
e567a21 on July 25. I got a completely successful 'make test' at commit
56c96dde25. But since there's also been a lot of activity on master in
the past few days, I wondered (a) does master PASS 'make test' (it
does); and (b) what will happen when the threads branch is merged into
master?
So I created a local, intermediate branch called 'formerge' by merging
threads into master. Unfortunately, I started to get intermittent
failures in several files which come up later in 'make test' than
't/pmc/nci.t' (the file where we have been experienced hanging on
several tests):
t/pmc/timer.t: hung once during make smolder_test, passed next time and
when run individually.
t/src/threads.t: hung during make smolder_test, then passed individually
and during 'make src_tests'.
This was suspicious. So I again retested master -- which PASSed again
and then retested the threads branch -- which hung at
t/pir/timer_exit.t. When I ran 'prove t/pir/timer_exit.t' individually
while 'make test' was still hanging at its invocation of that test, it
hung. Then, after I killed 'make test', I tried 'prove
t/pir/timer_exit.t' -- which ran quickly and PASSed.
Now, I wasn't logging the first runs I did today, so there's a
possibility that I misremember the name of the first failing test file,
i.e., that it might have been t/pir/timer_exit.t rather than
t/pmc/timer.t that failed the first time around.
Even granting that, I know that I have experienced intermittent hangs in
at least two files -- t/src/threads.t and t/pir/timer_exit.t -- either
in the threads branch per se or in a branch where I've merged threads
into master.
But the good news remains: On this platform, t/pmc/nci.t is now PASSing
repeatedly and, I hope, consistently.
Thanks to everyone who is following these issues. It would be good to
see if we're experiencing similar results on other non-Linux or
non-Intel systems.
Jim Keenan
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