Compaq DL380 2nd CPU not detected

PeteWieland · 06-06-2008, 05:49 AM

Hi,

Just clean installed Hardy 8.04 Server and it would appear that the 2nd processor is not detected.

Code:

user@server:~$ uname -a
Linux server 2.6.24-16-server #1 SMP Thu Apr 10 13:58:00 UTC 2008 i686 GNU/Linux
user@server:~$ grep processor /proc/cpuinfo
processor       : 0
user@server:~$ cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 8
model name      : Pentium III (Coppermine)
stepping        : 6
cpu MHz         : 930.513
cache size      : 256 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 mmx fxsr sse up
bogomips        : 1861.86
clflush size    : 32

Everything I've read about Hardy says that SMP should be set up by default, and Compaq diagnostics tell me that both CPUs are OK, so any idea what's wrong?

I am fairly new to Linux, and completely new to Ubuntu, so please be gentle with me

syg00 · 06-06-2008, 06:03 AM

Have a look at the boot messages - "dmesg | less"
Anything of interest ???. Less is a pager like (better) more - q(uit) to exit

PeteWieland · 06-06-2008, 06:10 AM

Thanks for the quick reply.

Code:

user@server:~$ dmesg | less
[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 2.6.24-16-server (buildd@palmer) (gcc version 4.2.3 (Ubuntu 4.2.3-2ubuntu7)) #1 SMP Thu Apr 10 13:58:00 UTC 2008 (Ubuntu 2.6.24-16.30-server)
[    0.000000] BIOS-provided physical RAM map:
[    0.000000]  BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
[    0.000000]  BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
[    0.000000]  BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
[    0.000000]  BIOS-e820: 0000000000100000 - 000000003fffc000 (usable)
[    0.000000]  BIOS-e820: 000000003fffc000 - 0000000040000000 (ACPI data)
[    0.000000]  BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved)
[    0.000000]  BIOS-e820: 00000000fee00000 - 00000000fee10000 (reserved)
[    0.000000]  BIOS-e820: 00000000fff80000 - 0000000100000000 (reserved)
[    0.000000] 127MB HIGHMEM available.
[    0.000000] 896MB LOWMEM available.
[    0.000000] Entering add_active_range(0, 0, 262140) 0 entries of 256 used
[    0.000000] Zone PFN ranges:
[    0.000000]   DMA             0 ->     4096
[    0.000000]   Normal       4096 ->   229376
[    0.000000]   HighMem    229376 ->   262140
[    0.000000] Movable zone start PFN for each node
[    0.000000] early_node_map[1] active PFN ranges
[    0.000000]     0:        0 ->   262140
:

I can't see anything at all there about 2 CPUs

Hopefully you know what it means

PeteWieland · 06-06-2008, 06:15 AM

Whoops, I've just realised there is more to the message

OK, it appears that the mobo is not SMP compliant:

Code:

[   75.159662] Compat vDSO mapped to ffffe000.
[   75.159699] Checking 'hlt' instruction... OK.
[   75.199616] SMP alternatives: switching to UP code
[   75.202135] Freeing SMP alternatives: 12k freed
[   75.202411] Early unpacking initramfs... done
[   75.874130] ACPI: Core revision 20070126
[   75.874350] ACPI: Looking for DSDT in initramfs... error, file /DSDT.aml not found.
[   75.878163] ACPI: setting ELCR to 0200 (from 0420)
[   75.878281] CPU0: Intel Pentium III (Coppermine) stepping 06
[   75.878294] SMP motherboard not detected.
[   75.878300] Local APIC not detected. Using dummy APIC emulation.
[   75.878414] Brought up 1 CPUs
[   75.878446] CPU0 attaching sched-domain:
[   75.878453]  domain 0: span 01
[   75.878457]   groups: 01
[   75.878969] net_namespace: 64 bytes
[   75.878986] Booting paravirtualized kernel on bare hardware
[   75.880297] Time:  9:40:53  Date: 06/06/08
[   75.880368] NET: Registered protocol family 16
[   75.880871] EISA bus registered
[   75.880897] ACPI: bus type pci registered
[   75.895605] PCI: PCI BIOS revision 2.10 entry at 0xf0084, last bus=3

Is there anything I can do, other than scrap the server?

syg00 · 06-06-2008, 09:22 PM

Might be Ubuntu specific - try a Knoppix liveCD, and see if that supports both CPUs.

PeteWieland · 06-07-2008, 01:41 PM

OK, I have this sorted now.

Linux has to be set as the OS in the ROM-Based Setup Utility, but I missed it as it is hidden in a sub-menu. Select UnixWare from the first menu then Linux is in the sub-menu.