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Re: i386 memory size problems

>From: Guan Yang <guanix@softhome.net>
>I have some problems with one of my machines. It has a 133 MHz
>pentium processor, and it runs a proprietary Compaq bios (it
>simply says "Compaq Deskpro 2000").

I've a Compaq DeskPro 590 that does the same thing.  It's a Pentium
90, used as a dial-in server for an Alpha 8200.  It has 96MB of RAM
physically, and that is detected and used properly by NetBSD and
Linux, but OpenBSD sees only 16MB.

I've tried compiling a kernel with the EXTMEMSIZE (I think) set to
95MB, 63MB, 31MB and other (16n - 1) memory sizes, but they all
fail to boot.  Additionally, setting memsize in the boot loader
won't work, either.  It seems we have the same problem.  At least
I'm not totally crazy.

>I am running the 2.6 GENERIC kernel compiled by theo. I have
>attached a dmesg of said machine.

I, too, have reverted to the 2.6 GENERIC kernel.  It seems stable
enough, but the memory issue keeps me from applying the proper
security patches (i.e. user-can-ifconfig, etc.) and recompiling the

The dmesg output for this machine follows.


OpenBSD 2.6 (GENERIC) #696: Tue Nov  2 01:46:05 MST 1999
cpu0: F00F bug workaround installed
cpu0: Intel Pentium (P54C) ("GenuineIntel" 586-class) 90 MHz
BIOS mem  = 654336 conventional, 15728640 extended
real mem  = 16384000
avail mem = 10985472
using 225 buffers containing 921600 bytes of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(2b) BIOS, date 05/10/95
bios0: diskinfo 0xe055800c cksumlen 1 memmap 0xe05580a8 pciinfo 0xe05580f0 
fo 0xe055810c
apm at bios0 function 0x15 not configured
pci0 at mainbus0 bus 0: configuration mode 1 (bios)
"Compaq Triflex Host-PCI" rev 0x01 at pci0 dev 0 function 0 not configured
"Cirrus Logic CL-GD5434-8" rev 0xfc at pci0 dev 10 function 0 not configured
xl0 at pci0 dev 14 function 0 "3Com 3c905B 100Base-TX" rev 0x30: irq 11xl0: 
and never completed!
address 00:10:5a:e7:3a:7a
exphy0 at xl0 phy 24: 3Com internal media interface
pcib0 at pci0 dev 15 function 0 "Compaq PCI-ISA" rev 0x02
isa0 at pcib0
isadma0 at isa0
wdc0 at isa0 port 0x1f0/8 irq 14
wd0 at wdc0 channel 0 drive 0: <ST3491A D>
wd0: can use 16-bit, PIO mode 3
wd0: 16-sector PIO, LBA, 408MB, 899 cyl, 15 head, 62 sec, 836070 sectors
wd1 at wdc0 channel 0 drive 1: <WDC AC31000F>
wd1: can use 16-bit, PIO mode 3
wd1: 16-sector PIO, LBA, 1033MB, 2100 cyl, 16 head, 63 sec, 2116800 sectors
pcppi0 at isa0 port 0x61
midi0 at pcppi0: <PC speaker>
sysbeep0 at pcppi0
lpt0 at isa0 port 0x378/4 irq 7
npx0 at isa0 port 0xf0/16: using exception 16
pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
pccom2 at isa0 port 0x3e8/8 irq 5: ns16550a, 16 byte fifo
vt0 at isa0 port 0x60/16 irq 1: CL-GD5430, 80/132 col, color, 8 scr, mf2-kbd
pms0 at vt0 irq 12
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
biomask 4040 netmask 4840 ttymask 58c2
pctr: 586-class performance counters and user-level cycle counter enabled
dkcsum: wd0 matched BIOS disk 80
dkcsum: wd1 matched BIOS disk 81
root on wd0a
rootdev=0x0 rrootdev=0x300 rawdev=0x302

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