dell 4gb ram PAE - asi dlhsie/delsi

[patrik rybar]

mam maly problem s ktorym sa krutim stale dokola medzi supportom Dell-u a Redhat-u

o co ide :

dell 6600 4gb ram redhat as 2.1 , vidim v systeme iba 3,6 gb ram

je to sposobene tym, ze :

Systems that support hot-plug, hot-swap, and hot-add PCI capabilities, with 4GB of memory installed 
may not report or have access to all physical memory. An indication of this is the operating system 
reporting less available memory than the amount of memory physically present in the system.

Hot-plug, hot-swap and hot-add PCI capabilities require that a certain amount of memory in the upper 
range of the 4GB address space be reserved. PCI devices installed in a system require all of their 
resources to be defined and mapped in the 32-bit address (4GB) space. The Flash Memory and APIC 
controllers are located at the top of memory at address 0xFEC00000 and above, other PCI devices are 
defined below this address range. Physical memory, which exists in this high address space, may be 
unusable by the operating system.

ve woknech sa to riesi parametrom /PAE do boot.ini

support redhat tvrdi, ze to musi automaticky slapat pri pouziti entreprise kernel-u

The enterprise kernel is able to use up to 64GB pagecache without any modifications.
"If more than 4 Gigabytes is used then answer "64GB" here. This
selection turns Intel PAE (Physical Address Extension) mode on.
PAE implements 3-level paging on IA32 processors. PAE is fully
supported by Linux, PAE mode is implemented on all recent Intel
processors (Pentium Pro and better). NOTE: If you say "64GB" here,
then the kernel will not boot on CPUs that don't support PAE! "


dell ma odkazuje na vyrobcu OS

vyrobca OS robi mrtveho chrobaka a dava rady typu "mate kabel v elektrike ?"

ani po update na najnovsi kernel pre RH AS ziadna zmena
uname -a
Linux dbsm 2.4.9-e.16enterprise #1 SMP Mon Mar 17 16:37:14 EST
ree
          total     used        free     shared    buffers       cached
Mem:       3605424     186700     3418724     28      7332        77364
-/+ buffers/cache:     102004     3503420
Swap:       6192996        0     6192996


riesil niekto tento problem ?