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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