Re: Wolk 4.9 smp cpu detection and initialization problems

Le sam 13/09/2003 à 23:36, Olaf Unterkofler a écrit :
> Hi all,
> 
> after setting up three identical systems with the following hardware:
> 
> - Tyan Thunder i7501 pro (S2721-533) mainboard
> - 2 x Intel Xeon 2.4 GHz CPUs
> - 1GB (2 x 512GB registered) memory
> - 3Ware 7500-8 IDE RAID controller
> - 3 x 80 GB Maxtor IDE HDD
> - 3 x Maxtor 250 GB IDE HDD
> 
> I have found that the machines are very unstable using the current wolk
> 4.9 kernel.
> The stock SuSE 8.2 SMP Kernel works fine.


Hi Olaf

I am intersted in your problems because I'll soon have similar hardware
to play with.

> 
> After looking at the boot-logs and "/proc/interrupts", I have the strange
> feeling that the wolk kernel recognizes the processors (4 in all, thanks
> to hyperthreading), but does not initialize them correctly.
> Deactivating hyperthreading or ACPI in the BIOS or via the kernel options
> results in only two CPUs beeing found (the first physical ?). Only the

yes both have physical id 0


As a try to narrow the case allow me some observations:


1) you use a lot of laptop like config (cpufreq, acpi stuff). for smp/ht
you just need 

CONFIG_ACPI=y
CONFIG_ACPI_HT_ONLY=y
CONFIG_ACPI_BOOT=y 


2) you have  CONFIG_HIGHMEM64G=y which is not needed as you a 1 GB of
ram


> Hope this is enough information to track down the problem - if not, I
>will try to provide any necessary information.

if it is very unstable some oops would be ok or is it hard lock ?

Ciao

-- 
Marcel de Riedmatten
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