Comments on: Building PostgreSQL on Leopard

By: BZ

BZ — Fri, 18 Jul 2008 23:03:24 +0000

FWIW, I found that this error will occur if you already have an instance of posgresql running.

By: Simon

Simon — Sun, 13 Jul 2008 00:38:42 +0000

@joost:
Try increasing the shared memory settings on your system. Create /etc/sysctl.conf with the follwing content and reboot your machine:

kern.sysv.shmmax=167772160 kern.sysv.shmmin=1 kern.sysv.shmmni=32 kern.sysv.shmseg=8 kern.sysv.shmall=65536

By: joost baaij

joost baaij — Fri, 04 Jul 2008 12:12:54 +0000

This absolutely does not work with Mac OS X Leopard 10.5.3.

creating template1 database in ./data/base/1 … FATAL: could not create shared memory segment: Cannot allocate memory
DETAIL: Failed system call was shmget(key=1, size=1777664, 03600).
HINT: This error usually means that PostgreSQL’s request for a shared memory segment exceeded available memory or swap space. To reduce the request size (currently 1777664 bytes), reduce PostgreSQL’s shared_buffers parameter (currently 50) and/or its max_connections parameter (currently 13).
The PostgreSQL documentation contains more information about shared memory configuration.
child process exited with exit code 1
initdb: removing contents of data directory “./data”

By: joe

joe — Mon, 25 Feb 2008 23:41:32 +0000

Thanks, as far as I can tell this worked on OS X 10.5.2 and PostgreSQL 8.3.0.

By: George Powers

George Powers — Sat, 15 Dec 2007 00:27:27 +0000

Thanks, this worked for me on the current Leopard version (10.5.1) with one small glitch. I had to su as admin in order for the install to work.