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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Mikael Kjellström <mikael.kjellstrom@mksoft.nu>
Cc: pgsql-hackers@lists.postgresql.org
Subject: Re: PSA: we lack TAP test coverage on NetBSD and OpenBSD
Date: Thu, 17 Jan 2019 17:23:02 -0500
Message-ID: <17004.1547763782@sss.pgh.pa.us> (raw)
In-Reply-To: <cd736500-332f-994b-f506-126a350f24ee@mksoft.nu>
References: <9427.1547701450@sss.pgh.pa.us>
	<e22667cb-ceb1-a6d5-13a4-ced300868631@mksoft.nu>
	<22802.1547759781@sss.pgh.pa.us>
	<ad198f3d-957d-9d11-a386-0fae204c3518@mksoft.nu>
	<0a6ece1f-8175-e873-c459-c3a8fd18ad71@mksoft.nu>
	<26513.1547761358@sss.pgh.pa.us>
	<1d5a693b-1491-0527-44e8-ac21301f37a8@mksoft.nu>
	<cd736500-332f-994b-f506-126a350f24ee@mksoft.nu>

=?UTF-8?Q?Mikael_Kjellstr=c3=b6m?= <mikael.kjellstrom@mksoft.nu> writes:
>> Let's see if it works better this time.

> Hmmm, nope:

> 2019-01-17 23:09:20.343 CET [9129] FATAL:  could not create semaphores: 
> No space left on device

Yeah, you might've been able to get by with OpenBSD/NetBSD's default
semaphore settings before, but they really only let one postmaster
run at a time; and the TAP tests want to start more than one.
For me it seems to work to append this to /etc/sysctl.conf:

kern.seminfo.semmni=100
kern.seminfo.semmns=2000

and either reboot, or install those settings manually with sysctl.

			regards, tom lane




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