[Fwd: Re: [syslinux] etherboot 5.3.14 and pxelinux keyboard problem]
plattel at tiscali.dk
Sat Sep 10 02:47:58 PDT 2005
> I started debugging highmem.inc. The 486 machine has 32 MB of
> physical ram. HighMemSize reports 15597568 bytes. This sounds like
> the old "Memory hole at 15-16MB" BIOS feature. I checked the bios and
> it did not have a way of turning it on or off. I assume the hole is
> enabled since HighMemSize reports that size.
> Also checked how the memory is detected. Memtest-86 reports e820-std
> and reports 32MB of RAM but highmem.inc reports ah88 standard and
> reports only 15MB of RAM.
I did a quick test with memdisk on how ram is reported on the 486.
Memdisk also reports memory using ah88 standard and reports the correct
amount of memory of 32MB - "1588: 0x7660 15E801: 0x3c00 0x00e9"
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