> OK, easiest things first, could you show us:
> 1. the output of "grep -i highmem " toward your running kernel config file?
Highmem is on:
cat /boot/config-2.6.33.1 | grep -i highmem
# CONFIG_NOHIGHMEM is not set
# CONFIG_HIGHMEM4G is not set
CONFIG_HIGHMEM64G=y
CONFIG_HIGHMEM=y
# CONFIG_DEBUG_HIGHMEM is not set
>
> 2. the complete entry grub/lilo stanza that is responsible to execute
> your current running kernel
>
menuentry 'Linux 2.6.33.1' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,2)'
search --no-floppy --fs-uuid --set 2875dab1-590c-4c56-a1a8-69ac3221e339
linux /boot/vmlinuz-2.6.33.1 root=UUID=2875dab1-590c-4c56-a1a8-69ac3221e339 ro quiet splash
initrd /boot/initrd.img-2.6.33.1
}
I noticed that addresses in /proc/iomem are not contiguous as follow:
root@lpt:~# cat /proc/iomem
00000000-00001fff : System RAM
00002000-0000ffff : reserved
00010000-0009f7ff : System RAM
0009f800-0009ffff : reserved
000a0000-000bffff : Video RAM area
000c0000-000c7fff : Video ROM
000cf000-000d07ff : Adapter ROM
hole - how about address range from 000d0800 to 000dffff ??
000e0000-000fffff : reserved
000f0000-000fffff : System ROM
00100000-bf67ffff : System RAM
00100000-005951c8 : Kernel code
005951c9-007be6e7 : Kernel data
00854000-008dfadb : Kernel bss
bf680000-bf6fffff : ACPI Non-volatile Storage
bf700000-bfffffff : reserved
c0000000-c3ffffff : PCI Bus 0000:06
c0000000-c3ffffff : PCI CardBus 0000:07
c4000000-c41fffff : PCI Bus 0000:02
c4200000-c43fffff : PCI Bus 0000:02
c4400000-c45fffff : PCI Bus 0000:03
c4600000-c47fffff : PCI Bus 0000:03
c4800000-c49fffff : PCI Bus 0000:04
c4a00000-c4bfffff : PCI Bus 0000:04
c4c00000-c4dfffff : PCI Bus 0000:05
c4e00000-c4e00fff : Intel Flush Page
next hole, c4e01000 - c7ffffff ?
c8000000-cbffffff : PCI CardBus 0000:07
d0000000-dfffffff : 0000:00:02.0
e0000000-efffffff : PCI MMCONFIG 0000 [bus 00-ff]
e0000000-efffffff : reserved
e0000000-efffffff : pnp 00:01
f0000000-f007ffff : 0000:00:02.0
f0080000-f00fffff : 0000:00:02.1
f0100000-f01fffff : PCI Bus 0000:05
f0100000-f0100fff : 0000:05:00.0
f0100000-f0100fff : iwl3945
f0200000-f02fffff : PCI Bus 0000:06
f0200000-f0201fff : 0000:06:01.0
f0200000-f0201fff : 0000:06:01.0
f0202000-f0202fff : 0000:06:04.0
f0202000-f0202fff : yenta_socket
f0203000-f020307f : 0000:06:04.1
f0203100-f02031ff : 0000:06:04.4
f0203100-f02031ff : mmc1
f0203400-f02034ff : 0000:06:04.2
f0203400-f02034ff : mmc0
f0203800-f020387f : 0000:06:04.3
f0300000-f033ffff : 0000:00:02.0
f0340000-f0343fff : 0000:00:1b.0
f0340000-f0343fff : ICH HD audio
hole - f0344000 - f0543fff
f0544000-f05443ff : 0000:00:1d.7
f0544000-f05443ff : ehci_hcd
hole - f0544400 - febfffff
fec00000-fec0ffff : reserved
fec00000-fec003ff : IOAPIC 0
hole - fec0ffff - fecfffff
fed00000-fed003ff : HPET 0
fed00000-fed003ff : reserved
fed00000-fed003ff : pnp 00:04
hole - fed00400 - fed13fff
fed14000-fed19fff : reserved
fed14000-fed17fff : pnp 00:01
fed18000-fed18fff : pnp 00:01
fed19000-fed19fff : pnp 00:01
hole - fed1a000 - fed1bfff
fed1c000-fed8ffff : reserved
fed1c000-fed1ffff : pnp 00:01
fed20000-fed3ffff : pnp 00:01
hole - fed90000 - fedfffff
fee00000-fee00fff : Local APIC
fee00000-fee00fff : reserved
hole - fee00fff - feffffff
ff000000-ffffffff : reserved
Addreses marked by me as "hole", I think, are reserved for usage for devices, but why aren't show in /proc/iomem as region of "reserved" or something else (like BIOS region, or PCI bus?
--
regards
Andrzej Kardas
http://www.linux.mynotes.pl
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