Andres Freund <andres@anarazel.de> writes:
> On 2017-11-21 18:21:16 -0500, Tom Lane wrote:
>> Justin Pryzby <pryzby@telsasoft.com> writes:
>>> As $subject: backends are stuck in startup for minutes at a time. I didn't
>>> strace this time, but I believe last time I saw one was waiting in a futex.
> A futex? Hm, that was stock postgres?
Sure, since we switched to unnamed-POSIX semaphores in v10. On Linux
those are futexes.
(If Justin saw that while still on 9.6, then it'd be worth looking
closer.)
regards, tom lane