Re: [gentoo-amd64] multicore strange issue

["Konrad Okurowski" <dm.konrad@gmail.com>]

[-- Attachment #1: Type: text/plain, Size: 3048 bytes --]

I'm using turion x2 laptop with smp activated with no problem. Previously I
was using athlon64 3200+ desktop but gentoo on laptop was installed from
scratch.

Kfiaciarka

2008/6/3 Beso <givemesugarr@gmail.com>:

> 2008/6/3 Drake Donahue <donahue95@comcast.net>:
>
>>
>> On Tue, 2008-06-03 at 09:01 +0000, Beso wrote:
>> > hi,
>> >
>> > i've got a strange problem with my new notebook pc. i've bought a pc
>> > with an amd athlon 64 x2 processor with 2 cores, an atheros board and
>> > an rs690 ati.
>> > my old pc was a turion 64 with an atheros board and an rs480. now the
>> > components inside are all about the same so i've just copied the old
>> > gentoo system into the new pc and tried to recompile the kernel to
>> > have it tuned for the new processor. so the thing i've done was to
>> > activate the symetric multiprocessing and set to compiled into the
>> > kernel of md4, md5, md6 and aes x86_64 chipers for a luks /home
>> > chipering.
>> > the problem is that with the old normal config the kernel detects one
>> > processor and one core and it works, loading the modules, but when
>> > enabling simetric multiprocessing the kernel detects just one
>> > processor and one core and then it fails to load modules because of a
>> > different executable format in the modules.
>> >
>> > the strange thing is that opensuse livecd and mandriva live cd
>> > recognize the double processor (/proc/cpuinfo has 2 lines) and is able
>> > to step it in the right way. does anyone has a hint on what to control
>> > in the kernel config to see what's wrong?!
>> >
>> > thanks.
>> >
>> > --
>> > dott. ing. beso
>> If the attempt to boot does not end in a kernel panic;
>> use <shift-page up> to get to the top of the console output produced
>> during boot. If the boot loader has started an SMP kernel, a line
>> similar to this: "Linux Version 2.6.24-gentoo-r8 (root@livecd) (gcc
>> version 4.1.1 (gentoo 4.1.1-r3)) #1 SMP Sat May 24 14:06:10 EDT 2008"
>> should appear.  The key word being SMP. No key word, "SMP", means that
>> "make menuconfig" (or whatever kernel configuration tool you use needs
>> to be redone.
>> As far as I know under, Processor type and features,:
>>    [*] Symmetric multi-processing support
>>    Subarchitecture Type (PC-compatible)  --->
>>    Processor family (Opteron/Athlon64/Hammer/K8)  --->
>> produces an appropriate SMP kernel.
>> A <shift-page down> should reveal a line like:
>> CPU has two num_cores
>> A couple more <shift-page down>:
>> Initializing CPU#0
>> About 3 more <shift-page down>:
>> Brought up 2 CPU's.
>> About modules, I'm guessing modules compiled for single cpu have
>> differences from those compiled for multiple cpu. Also guessing
>> that /etc/modules/autoload.d and/or udev is trying to load single cpu
>> module(s) that were not written to adjust to a single cpu kernel.
>>
>
> so grub needs a different line at startup when using multicore?!
>
>
>
> --
> dott. ing. beso




-- 
pozdrawiam
Konrad Okurowski <dm.konrad@gmail.com>
Key Fingerprint = D993 3823 F20D 3B8D 2719 3012 2FE8

[-- Attachment #2: Type: text/html, Size: 4015 bytes --]