Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 4 Oct 2007 18:08:15 +0400
From:      "Artem Kuchin" <matrix@itlegion.ru>
To:        "Claus Guttesen" <kometen@gmail.com>, <Stephen.Clark@seclark.us>
Cc:        freebsd-stable@freebsd.org, Ivan Voras <ivoras@freebsd.org>
Subject:   Re: Panic with RELENG_6_2 on DELL PE 4600 with PAE
Message-ID:  <001701c80690$029c15a0$0c00a8c0@Artem>
References:  <47039CB4.5040306@seclark.us> <4703C245.9000104@mac.com><4703C4FB.4030809@seclark.us> <4703C687.2010201@mac.com><4703D5B6.4070003@seclark.us> <fe0lhg$t21$1@sea.gmane.org><4704E87D.4020608@seclark.us> <b41c75520710040625ne39c96co39f07d4d166468d0@mail.gmail.com>

next in thread | previous in thread | raw e-mail | index | archive | help
Claus Guttesen wrote:
>>>> Why would there be no space when I have 24GB of memory?
>>> 
>>> 1. Any process, including the kernel can only allocate up to 4 GB of
>>> memory on a 32-bit system (since a 32-bit integer can only hold that
>>> many values)
>>> 2. The kernel is further constrained so the user programs can get
>>> enough memory
>>> 3. Kernel structures for tracking and using memory are also stored
>>> in kernel memory. 24 GB of memory with PAE probably "eats up" a lot
>>> of those. I think you'll need to increase kmem_size (see
>>> http://wiki.freebsd.org/ZFSTuningGuide for an example - ignore
>>> ZFS-specific things).
>> It made no difference. Still the same error.
>> 
>> Is anyone actually using PAE with FreeBSD 6.2? I have found
>> practically no information using
>> google.

We are using it on very heavy loaded production web server. 8GB of ram,
dual xeon with HT. FreebSD 6-STABLE. about 900 process running
constantly in  about 20 jails. No problems detected :)

Planning to migrate to 7-CURRENT AMD64 within a month.

--
Regards,
Artem





Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?001701c80690$029c15a0$0c00a8c0>