Hi Martin and all,
I've just double checked with Sascha, the admin for the machine.
Remember, this is in production, so he can't do any tests.
It is currently running kernel kernel-largesmp-2.6.9-42.0.10.EL.x86_64
It see's all 16 CPU's (8 dual core opteron's) (I have the output of
cpuinfo if you need)
Output of uname -a
Linux <hostname deleted> 2.6.9-42.0.10.ELlargesmp #1 SMP Tue Feb 27
12:54:30 EST 2007 x86_64 x86_64 x86_64 GNU/Linux
I have the output of grub if you want, but the import part looks normal
title Scientific Linux SL (2.6.9-42.0.10.ELlargesmp)
root (hd0,0)
kernel /boot/vmlinuz-2.6.9-42.0.10.ELlargesmp ro root=LABEL=/
message=/boot/boot.msg console=tty0 console=ttyS0,9600N8 rhgb quiet
initrd /boot/initrd-2.6.9-42.0.10.ELlargesmp.img
Maybe it's the original S.L. 4.4 x86_64 kernel (2.6.9-42.0.3) that is
having the problems. Or maybe it's some setting in the bios.
Does the kernel crash go away when you update the kernel to
2.6.9-42.0.10.ELlargesmp?
Troy
Troy Dawson wrote:
> Hi Martin,
> I'm double checking right now, but it might be a day or two. The
> machine in question is in germany, and is in production right now, so I
> have to contact the system administrator to get the information.
>
> I do know that for i386, I saw all 16 CPU's and had no problems at all
> (with SL 4.4).
> For x86_64 my data somehow got blanked. You know you mean to save a
> file and push the wrong keys, and you don't notice until your test
> system is away in production.
>
> I will get that information and update the page if it needs be.
>
> Thanks
> Troy
>
> 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 ...
>>
>> Any other ideas ?
>>
>> cheers,
>> Martin
>>
>> On Thu, 15 Mar 2007, Stephen J. Gowdy wrote:
>>
>>> It looks like you need largesmp (assuming you have the 8 dual-core
>>> CPU version, most option look to only include 4 dual-core CPUs);
>>>
>>> "Please note that limits for <USV> v4 are for Update 3 or later.
>>> Update 3 was released in March 2006. CPU counts over 8 (AMD64/EM64T)
>>> or 64 (other architectures) require use of the largesmp kernel.
>>> Certified limits reflect the current state of system testing by <USV>
>>> and its partners, and the limit of support provided by a <USV> Linux
>>> subscription."
>>>
>>> On Thu, 15 Mar 2007, Martin Flemming wrote:
>>>
>>>> Hi, Troy et all !
>>>>
>>>> I've recognized today,
>>>> that on the hardware-webside
>>>>
>>>> https://www.scientificlinux.org/documentation/hardware/
>>>>
>>>> you've published the sucessfull
>>>> installation of a "Sun Fire x4600"-Machine ...
>>>>
>>>> We've got the same machine in our lab, but unfortunatley
>>>> we see only 8 cpu's not 16 ...
>>>>
>>>> So my question is, which kernel do you have installed ?
>>>>
>>>> I've installed following one:
>>>>
>>>> kernel-smp-2.6.9-42.0.3.EL.x86_64
>>>>
>>>> which displays only 8 CPU's ...
>>>>
>>>> At first, i've got the largesmp-kernel
>>>>
>>>> kernel-largesmp-2.6.9-42.0.3.EL.x86_64
>>>>
>>>> but this one generate a kernelpanic ....
>>>>
>>>>
>>>> Cheers,
>>>>
>>>> Martin
>>>>
>
--
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Troy Dawson [log in to unmask] (630)840-6468
Fermilab ComputingDivision/LCSI/CSI DSS Group
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