Hi, John !
Indeed, the number of CPU's are limited to 8 in kernel-smp
diff config-2.6.9-42.0.3.ELlargesmp
config-2.6.9-42.0.3.ELsmp
3,4c3,4
< # Linux kernel version: 2.6.9-42.0.3.ELlargesmp
< # Thu Oct 5 16:44:02 2006
---
# Linux kernel version: 2.6.9-42.0.3.ELsmp
# Thu Oct 5 16:27:03 2006
74c74
< # CONFIG_MEM_MIRROR is not set
---
CONFIG_MEM_MIRROR=y
94c94
< CONFIG_NR_CPUS=64
---
CONFIG_NR_CPUS=8
[hasgkssxtmrs] /boot #
I think a long time ago, i've noticed it .. but then something
something came around and it switch out of my brain again ...
Thank's a lot !!
But why crashed the largesmp-kernel ?
... could that concerned with the "CONFIG_MEM_MIRROR=y" option ?
And which kernel got Troy on his machine running ?
Thanks again & Cheers
Martin
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Martin Flemming
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On Thu, 15 Mar 2007, John Hearns wrote:
Martin Flemming wrote:
Hi, Stephen !
Yep, this was also my thought,
but this kernel "kernel-largesmp-2.6.9-42.0.3.EL.x86_64"
crashes as i remarked ...
Martin, I recently met the same issue on getting a 4600 up and running with
all cores. The machine in question was running SuSE I'm afraid.
We provided an updated kernel for it, with
CONFIG_NR_CPUS set to 128
This is a 2.6.16 kernel as these later kernels have better NUMA features.
I would advise getting a recent (say) Fedora kernel source RPM and
configuring it up, or maybe better one from the SL 5 beta.
Or even taking the 2.6.9 EL kernel source and setting CONFIG_NR_CPUs
higher.
