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Date: Tue, 13 Dec 2011 19:01:58 -0700
From: CS DBA <cs_dba@consistentstate.com>
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Subject: FATAL:  shmat(id=4096103) failed: Cannot allocate memory
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Hi All;

I just installed Fedora 16, I was running fedora 14.

I installed Postgresql from source and set SHMMAX to 2198066816

I set postgres to use 2GB for shared_buffers and I get this when I try 
to start:

FATAL:  shmat(id=4096103) failed: Cannot allocate memory

The only real difference from Fedora 14 is that on Fedora 16 I'm using 
the PAE kernel


Here's my current SHM kernel settings:
# sysctl -a | grep -i shm
kernel.shmmax = 2198066816
kernel.shmall = 2198066816
kernel.shmmni = 4096
kernel.shm_rmid_forced = 0
vm.hugetlb_shm_group = 0


Thoughts?


Thanks in advance

-- 
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Kevin Kempter       -       Constent State
A PostgreSQL Professional Services Company
            www.consistentstate.com
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