Messages in this thread | | | From | Daniel Egger <> | Subject | Re: 2.6.8 and 2.6.9 Dual Opteron glitches | Date | Tue, 2 Nov 2004 23:37:03 +0100 |
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On 02.11.2004, at 17:58, Thomas Zehetbauer wrote:
> I am using a not-so-new Tyan Thunder K8W S2885 based Dual Opteron > System.
Mine is a Tyan Tiger K8W. :)
>> 2) 64 bit kernel vgettimeofday panic: The kernel panics in
> Cannot confirm this, both 2.6.8.1 and 2.6.9 boot OK.
Could be the compiler, I'm using a gcc HEAD snapshot from yesterday.
However since I do not have any problems with the panics replaced by printk I have troubles to understand the meaning of them.
>> 3) Interrupt distribution 32 bit vs. 64 bit. Below is a copy of the
> Cannot confirm this, interrupts seem to be almost equally distributed > with 64-bit kernel and irqbalance running. Did you note that x86_64 > does > not provide in-kernel IRQ balancing.
Fair enough. Thanks for the pointer.
>> 4) ACPI powermanagement (32bit and 64bit): No matter which ACPI >> options
> AFAIK power management is almost unsupported on SMP systems.
Strange. The ACPI tables seem to be filled with valueable information which I can enable pretty finegrained in the BIOS and I even seem to get somewhat useful options with the first CPU.
Also /proc/cpuinfo mentions powermanagement: ... TLB size : 1088 4K pages clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: ts ttp
Whatever ts and ttp may mean.
I'd really love to have this machine running and use its power on demand instead of having to think about a more sophisticated airflow to keep the temperature (of idle CPUs) and thus the noiselevel down.
Servus, Daniel [unhandled content-type:application/pgp-signature] | |