On Fri, 8 Jun 2007 20:43:01 +0200, Frank Fiene wrote: >But OP was about 64bit kernel. So why does my openSUSE-10.2-64bit behave >like this? I am wondering that i am the only one with a >4GB-Thinkpad(-Z-Series)!
Broken BIOS I'd suggest. The BIOS has to reserve address space below 4 GiB so that 32 bit devices (i.e. PCI) may be addressed. How much address space is reserved is up to the BIOS. RAM in that range is not accessable unless the BIOS offers an option to remap that range to somewhere *above* the 4 GiB theshold. Only then can an OS kernel access that RAM. So if the BIOS doesn't have such an option, this 'hidden' memory is wasted and could just as well be removed. Philipp -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
