Re: SHMMAX seems entirely broken in OS X 10.4.2

From: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: SHMMAX seems entirely broken in OS X 10.4.2
Date: 2005-08-30 01:24:01
Message-ID: 4313B531.5030101@commandprompt.com
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Tom Lane wrote:

>Has anyone been able to set kern.sysv.shmmax above 4MB at all in latest
>OS X? I just spent a while trying what seemed every possible
>permutation of setting up /etc/sysctl.conf and editing /etc/rc directly,
>and it just fails (symptom: sysctl shows shmmax as -1, and Postgres
>cannot start).'
>
Is this perhaps one of the artificial limitations that they put in
place to make you buy Apple OSX Server?

Sincerely,

Joshua D. Drake

>
>Grrr. Apple's been pretty lame about this from day one, but at least
>it's been possible to do it one way or another.
>
>(Curiously, it seems you can now change shmall after bootup in 10.4.2,
>but that's not much help when you can't change shmmax.)
>
> regards, tom lane
>
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