The problem
On a Compaq Proliant 4500R
Linux only recognises 1 CPU
it has 4 x 133Mhz boards in it
Most Compaq's have a setting (advanced mode) that you can set the APIc mode
to FULL TABLE MAPPED
These 4500's have no settings for APIC mode at all even using the 2.50A
version of the SCU
and the latest bios........alltho the latest Bios is dated 11 / 98
the only settings are
Alternate A20 switching
ISA Cycle Wait
Software Generated NMI
Fail-Safe Timer NMI
Bus Master Timeout NMI
Diskette Controller DMA timing
Video Refresh mode
Refresh Queue Overflow NMI
Erase non-volatile memory
Warm Boot Bus reset
F1 Boot Prompt
I have tried other OS's on these machines
NT Server (all versions) => 4 processors initialised and 4 processors found
and work.
OS2 Warp Server eBusiness => 4 processors initialised and 4 processors found
and work.
Solaris => 4 processors initialised and 4 processors found and work.
I havn't tried SCO or Unixware or FreeBSD ( I don't have them) but am told
they also work
Here is a response from the Compaq 7 linux mailing list I received
> The problem is that the PL4500 is an entirely EISA based system. This
came
> out before the current methods used today which are "Full Table" and "Full
> Table Mapped." In this case, even if there was a choice for APIC mode on
> the PL4500, it would have only 1 selection: "EISA Mapped" Linux is
> currently unable to use processors under this mapping scheme (as far as I
> know). Maybe someone is willing to devote some time, effort, and skill to
> allow Linux to run on the "EISA Mapped" de of multiprocessing. The only
> systems affected by this are most of the EISA only based servers.
>
> Solution:
> Check by using SCU (System Configuration e Utility) under advanced mode to
> check if there are choices for APIC mode for "Full Table" or "Full Table
> Mapped." If there are no choices or if the only choice is "EISA Mapped,"
> then the only solution under Linux will be to use it as a single processor
> box.
So my question is, does the kernel tree for future Linux's have a plan to
implement these types of machines??
As there is many brands (HP Digital Compaq etc) that have servers based on
this type of config.
Or am I just wasting my time (holding my breath) whilst something maybe made
to work with these older systems??
If I new anything about programming, I would offer to help make something.
But i havn't the faintest Idea of programming at all so I can't even offer
this.
The only thing I could offer to help make this would be to Test and maybe
debug problems is someone was to try and make a kernel with support for
these types (class ??) of hardware.
Thanks for reading if you got this far :-)
Tony Platt
Sys Admin
Eliza Travel Pty Ltd
Australia
http://www.elizatravel.com
[EMAIL PROTECTED]
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