Date: Tue, 14 Mar 2006 09:53:43 -0800 From: Atanas <atanas@asd.aplus.net> To: freebsd-stable@freebsd.org Subject: Re: FreeBSD/i386 6-stable + 4 GB RAM Message-ID: <44170327.7030702@asd.aplus.net> In-Reply-To: <200603141630.k2EGUgDe053168@lurza.secnetix.de> References: <200603141630.k2EGUgDe053168@lurza.secnetix.de>
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Oliver Fromme said the following on 03/14/06 08:30: > > Will FreeBSD/i386 6-stable run on a 4 GB machine out of the > box? Do I have to apply special tuning (kernel config or > sysctl or whatever)? Using PAE shouldn't be necessary, I > assume. > All it depends is what size of memory address space the motherboard manufacturer decided to reserve for PCI devices. I've seen boards with PCI window size ranging from 256 to 1024MB. In order to utilize the full amount of RAM you would need PAE. > It would also be interesting to know if 4-stable (which is > currently running on the predecessor machines) would run > without problems on those new 4 GB ones, too. > For 4-STABLE you would need to adjust KVA_PAGES. Otherwise, depending on the load and the memory usage, you might get random crashes. Or at least this is what I experienced when upgrading RAM on a bunch of 4.x based machines. Regards, Atanas
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