Re: Fresh build on OS X not working (memory)

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Scott Marlowe <scott.marlowe@xxxxxxxxx> writes:
> On Thu, Apr 29, 2010 at 11:42 PM, Tom Lane <tgl@xxxxxxxxxxxxx> wrote:
>> OSX is *notoriously* unfriendly about configuring shm parameters.
>> You look at it sidewise, it doesn't work, and generally won't tell
>> you why it's refusing to talk to you.  We document a few of the known
>> constraints in our manual, but I'm sure there are more.

> The fact that they seem to change the needed magical incantations
> every point release doesn't help things either.

Actually, it appears they've finally reached a point of reasonable
sanity in 10.6.  It's still true that they reject non-page-multiple
SHMMAX, instead of rounding to the next page boundary like everybody
else does; but the old kluges whereby you could only set the values by
waving a dead chicken in a specific fashion during boot seem to be
mostly gone.  I wasn't aware of this myself, not having experimented
recently.

			regards, tom lane

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