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Re: FreeBSD and large shared_buffers a no-go? - Mailing list pgsql-general

From Tom Lane
Subject Re: FreeBSD and large shared_buffers a no-go?
Date
Msg-id 19933.1231353043@sss.pgh.pa.us
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In response to FreeBSD and large shared_buffers a no-go?  (Kirk Strauser <kirk@strauser.com>)
Responses Re: FreeBSD and large shared_buffers a no-go?  (Kirk Strauser <kirk@strauser.com>)
Re: FreeBSD and large shared_buffers a no-go?  (Kirk Strauser <kirk@strauser.com>)
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Kirk Strauser <kirk@strauser.com> writes:
> First, shmget is asking for a lot less than shmmax - why is it failing?

Check to see if things work as expected when you have shmmax and shmall
set to a shade less than 2GB and fail when they are a shade more.  If
so, it would seem there's a signed-integer-overflow bug somewhere in the
kernel's handling of shmem requests ... which would be a reportable
kernel bug.

            regards, tom lane

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