Kernel panic sur un serveur homemade
Publié : lun. 5 oct. 2009 18:22
oops ...
You can reclaim the missing memory if your BIOS supports "Memory hole
Remapping". I have an Epox board (9NPA Ultra) and under the DRAM
configuration screen there is an option to enable Memory hole Remapping.
Some BIOS's support Hardware remapping, some software remapping, and some
both. Some don't support it at all.
As others pointed out, the missing memory is reserved for PCI devices and the
like. When this option is enabled, it remaps the memory reserved for those
devices so that the OS sees all 4 GB.
Not sure how stable the system is with remapping enabled. With it enabled I
had a hang while doing an update, so I turned it off as the .5 GB that I was
missing wasn't crucial. I haven't really tested it with the memory hole
remapping enabled.