Installing on a 9500 MP installation questions and answers

[nathan r. hruby]

On Monday, September 23, 2002, at 03:51 PM, Harold Shanafield wrote:

> You are the first person I've heard of using bootx and
> getting smp.  Everything I've seen on this list and
> read says bootx turns off the second processor before
> linux can get a hold of it.  When I've tried it with
> the smp kernel, the second processor never comes up.
> Do you have some sort of bios upgrade?  Is there
> anybody else using bootx and getting smp to work?
>

Wow.. You're like the second person to ask me this.. evidently I must 
have an inverse improbability field around me or something :)

Here's the relevant part of dmesg:
--- BEGIN
Memory BAT mapping: BAT2=256Mb, BAT3=0Mb, residual: 0Mb
Total memory = 256MB; using 1024kB for hash table (at c0600000)
Linux version 2.4.19-4asmp (root@kaelta.terraplex.com) (gcc version 
2.95.4 20010319 (prereleas
e/franzo/20011204)) #1 SMP Wed Jun 5 00:59:38 EDT 2002
Found a Grand Central mac-io controller, rev: 2, mapped at 0xfdeb4000
PowerMac motherboard: PowerMac 9500/9600
Cache coherency enabled for bandit/PSX
Found Bandit PCI host bridge at 0xf2000000. Firmware bus number: 0->0
hose bandit, pci_mem_offset: 00000000, start0: f3000000
   io_base_virt: fd6b1000, io_base_phys: f2000000, isa_mem_base: 00000000
Cache coherency enabled for bandit/PSX
Found Bandit PCI host bridge at 0xf4000000. Firmware bus number: 1->1
hose bandit, pci_mem_offset: 00000000, start0: f5000000
   io_base_virt: fceaf000, io_base_phys: f4000000, isa_mem_base: 00000000
On node 0 totalpages: 65536
zone(0): 65536 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/sda5
System has 32 possible interrupts
GMT Delta read from XPRAM: -240 minutes, DST: on
via_calibrate_decr: ticks per jiffy = 125001 (750010 ticks)
Console: colour dummy device 80x25
Calibrating delay loop... 398.95 BogoMIPS
Memory: 252172k available (2856k kernel code, 2372k data, 332k init, 0k 
highmem)
Dentry cache hash table entries: 32768 (order: 6, 262144 bytes)
Inode cache hash table entries: 16384 (order: 5, 131072 bytes)
Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)
Page-cache hash table entries: 65536 (order: 6, 262144 bytes)
POSIX conformance testing by UNIFIX
Entering SMP Mode...
Processor 1 found.
Waiting on wait_init_idle (map = 0x2)
All processors have done init_idle
--- END

The machine is an Apple 9600MP (not an upgrade card) and the MacOS i'm 
using to bootstrap Linux is OS8.5 (vanilla as plain as you can be 
install) and the BootX that shipped with YDL-2.3.  BootX may turn off 
the second processor, but the 2.4.19-4asmp kernel turns it back on :)  
AFIK, this machine is doing SMP, anyone got a test to see if it's truly 
doing it?

-n
--
......
nathan hruby - nhruby@arches.uga.edu
computer services specialist
uga drama
http://www.drama.uga.edu/
......