[Delphine-dvlpt] Memory Management Bug

[Norikesh <nor...@ya...>]

Hi:
	The mm bug is simple, it does not detect the system
memory correctly, the computer has 0x800000 (8388608),
but it detects 0x850000 (8716288). If I adjust the "total_memory"
value manually, delphineOS works correctly.
	Well, I think we need an alternative routine to detect
the RAM for older PC's.


--- MODIFIED CODE ---
   ...
   ...
   if (nb_pages mod 1024 <> 0) then cmpt := cmpt + 1;
   printk('nb_pages: %h\n', [nb_pages]);
   printk('cr3_k: %h\n', [cr3_k]);
   for i:=0 to (cmpt - 1) do
      begin
         tmp := get_free_page;
         printk('pass#%d: %h\n', [i, tmp]);
         asm
         ...
         ...
--- MODIFIED CODE ---


--- RESULT WHIT BAD TOTAL_MEMORY VALUE (0x00850000) ---
Loading DelphineOS ... OK

ACPU: CPUID instruction not supported !!!
nb_pages: 0x00000850
cr3_k: 0x0084f000
pass#0: 0x0084e000
pass#1: 0x0084d000
pass#2: 0x0084c000
adr: 0x00c00001
<-- here, reboot   :-(
--- RESULT WHIT BAD TOTAL_MEMORY VALUE (0x00850000) ---


--- RESULT WHIT CORRECT TOTAL_MEMORY VALUE (0x00800000) ---
Loading DelphineOS ... OK

ACPU: CPUID instruction not supported !!!
nb_pages: 0x00000800
cr3_k: 0x007ff000
pass#0: 0x007fe000
pass#1: 0x007fd000
adr: 0x00800001
Memory: 7520k/8192k available (38k kernel code, 148k data, 672k reserved)
PCI: not on this machine !!!
com1 at 0x03f8
com2 at 0x02f8
lpt1 at 0x0378
FDC: Nec765a compatible controller
fd0: 1,44Mb
hda: H3171-A2, 163Mb w/96k cache, CHS=904/10/34
  Partition check: hda1
--- RESULT WHIT CORRECT TOTAL_MEMORY VALUE (0x00800000) ---


What do you think?

			See you soon.


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