On Sat, 28 Jan 2017 17:01:05 +0100 Zoran Stojsavljevic <[email protected]> wrote:
> Hello Stefan, > > Let me ask you for some other stuff, since I would like to put what I wrote > initially to hold (sleep state, for now). > > You wrote: *The official specs are not trustworthy IMHO and cpuid(1) and > /proc/cpuinfo **show the same physical address width of 36 bits (which > would indicate a **maximum of 64 GB).* > > Question to you: are you dealing with i686 kernel, (32 bit)? It seems to me > that you have Nehalem which complies in IA32 with PAE HW extension, don't > you?! > > This is very important -> *Enabling PAE (by setting bit 5, PAE, of the > system register CR4) causes major changes to this scheme...* > Both CPUs have PAE support, yes, but I think I have never even tried to boot a 32-bit kernel on them :) However, cpuid with an x86_64 kernel shows (assumably via the cpuid op and edx): physical address extensions = true But that does only indicate support not use of PAE... I don't see how this would be relevant to memtest or the 64-bit kernels anyway. -- Kind regards/Mit freundlichen Grüßen, Stefan Tauner -- coreboot mailing list: [email protected] https://www.coreboot.org/mailman/listinfo/coreboot
