Date: Thu, 9 Apr 2009 11:43:08 -0700 (PDT) From: Dino Vliet <dino_vliet@yahoo.com> To: freebsd-questions@freebsd.org Subject: memtest question on 8 GB RAM AMD64 system Message-ID: <848751.28828.qm@web51109.mail.re2.yahoo.com>
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Dear freebsd people, I have just installed 4 x 2gb kingston memory banks (Kingston HyperX 4GB 800mhz DDR2 Non-ECC CL5 (5-5-5-15) DIMM) onto my AMD 64 system with a X2 5200 CPU. The motherboard I have in this system is MSI K9AG Neo2-Digital. The system boots fine and I wanted to try memtest to see if there would be errors. So I installed that /usr/ports/sysutils/memtest port and did # memtest 2400 The output I got is: Continuing with unlocked memory; testing will be slower and less reliable. ....... pagesize 4096 pagesizemask is 0xfffffffffffff000 want 2400MB (2516582400 bytes) got 2400MB (2516582400 bytes), trying mlock .......failed for unknown reason Loop 1: ..... In my /etc/rc/conf file I had added these lines in the past (when I had 4gb RAM installed in it) sysctl -w kern.ipc.shmmax=1954311424 sysctl -w kern.ipc.shmall=238000 What is the case here? Why is memtest failing to use mlock? How can I eventually make sure I can run memtest with 8000mb? The purpose of this machine is that it will be used for a various data intensive tasks where I need to be able to allocate as much memory possible. I am running a postgresql database server on it as well to store my source data. Brgds Dino
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