Date: Tue, 12 Dec 2006 12:17:14 -0500 From: Bill Moran <wmoran@collaborativefusion.com> To: hackers@freebsd.org Subject: shmmax tops out at 2G? Message-ID: <20061212121714.a3fbb61b.wmoran@collaborativefusion.com>
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[I sent this to questions@ yesterday and have yet to get a response. I suspect it may be a little more technical than questions@] uname -a FreeBSD db00.lab00 6.2-BETA3 FreeBSD 6.2-BETA3 #1: Fri Dec 8 09:27:37 EST 2006 root@db00.lab00:/usr/obj/usr/src/sys/DB-2850-amd64 amd64 sysctl kern.ipc.shmmax=2200000000 kern.ipc.shmmax: 2100000000 -> -2094967296 Looks like an unsigned 32-bit int. That doesn't seem to scale as well as would be expected on 64-bit arch (or PAE for that matter). Is this a mistake, or intentional? I'm working with some big memory systems, and I sure would like to allocate more than 2G for PostgreSQL to use ... -- Bill Moran Collaborative Fusion Inc.
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