>Number:         30202
>Category:       kern
>Synopsis:       256 MB of memory missing on 4 GB box
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed May 11 19:50:00 +0000 2005
>Originator:     Chris Tribo
>Release:        3.99.3
>Organization:
>Environment:
NetBSD 3.99.3 (GENERIC.MPACPI) #0: Tue May 10 17:22:01 EDT 2005
        root@mybox:/usr/obj/sys/arch/i386/compile/GENERIC.MPACPI
>Description:
This machine has 4096 MB of RAM, is a memory region being missed?


NetBSD 3.99.3 (GENERIC.MPACPI) #0: Tue May 10 17:22:01 EDT 2005
        root@mybox:/usr/obj/sys/arch/i386/compile/GENERIC.MPACPI
total memory = 3839 MB
avail memory = 3750 MB
BIOS32 rev. 0 found at 0xffe90
mainbus0 (root)
cpu0 at mainbus0: apid 1 (boot processor)
cpu0: Intel Pentium III (686-class), 1396.52 MHz, id 0x6b1
cpu0: features 383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
cpu0: features 383fbff<PGE,MCA,CMOV,PAT,PSE36,MMX>
cpu0: features 383fbff<FXSR,SSE>
cpu0: "Intel(R) Pentium(R) III CPU family      1400MHz"
cpu0: I-cache 16 KB 32B/line 4-way, D-cache 16 KB 32B/line 4-way
cpu0: L2 cache 512 KB 32B/line 8-way
cpu0: ITLB 32 4 KB entries 4-way, 2 4 MB entries fully associative
cpu0: DTLB 64 4 KB entries 4-way, 8 4 MB entries 4-way
cpu0: calibrating local timer
cpu0: apic clock running at 132 MHz
cpu0: 16 page colors
cpu1 at mainbus0: apid 0 (application processor)
cpu1: starting
cpu1: Intel Pentium III (686-class), 1396.44 MHz, id 0x6b1
cpu1: features 383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
cpu1: features 383fbff<PGE,MCA,CMOV,PAT,PSE36,MMX>
cpu1: features 383fbff<FXSR,SSE>
cpu1: "Intel(R) Pentium(R) III CPU family      1400MHz"
cpu1: I-cache 16 KB 32B/line 4-way, D-cache 16 KB 32B/line 4-way
cpu1: L2 cache 512 KB 32B/line 8-way
cpu1: ITLB 32 4 KB entries 4-way, 2 4 MB entries fully associative
cpu1: DTLB 64 4 KB entries 4-way, 8 4 MB entries 4-way
ioapic0 at mainbus0 apid 2 (I/O APIC)
ioapic0: pa 0xfec00000, version 11, 16 pins
ioapic0: misconfigured as apic 0
ioapic0: remapped to apic 2
ioapic1 at mainbus0 apid 3 (I/O APIC)
ioapic1: pa 0xfec01000, version 11, 16 pins
ioapic1: misconfigured as apic 0
ioapic1: remapped to apic 3
acpi0 at mainbus0
acpi0: using Intel ACPI CA subsystem version 20050408
acpi0: X/RSDT: OemId <DELL  ,PE2550  ,00000001>, AslId <MSFT,0100000a>
acpi0: SCI interrupting at int 9
acpi0: fixed-feature power button present
...
>How-To-Repeat:
Boot a kernel on a machine with 4 GB of RAM
>Fix: