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Post subject: ACPI Problems with kernel 2.6.23.1-xx Versions
 Posted: Nov 07, 2007 - 11:31 AM
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Joined: Dec 04, 2006
Posts: 227
Location: Nördliche Lüneburger Heide
Status: Offline
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Hi,
I use an Compaq Armada1750 Laptop which is upgraded to an PIII 500 Mhz CPU.
In order to use the 256K L2-cache I used until now (kernel 2.6.22.xx) an Module called pIIIcache which I always had to recompile for each new kernel. Without this module the L2-cache wasn't used and the laptop was pretty slow.
Now with kernel 2.6.23.1- xx (first noticed with 2.6.23.1-slh-smp-16) I have the effect that the Laptop hangs during boot at Load kernel modules ... if the module is loaded (per entry in /etc/modules) or freezes when i call the module with modprobe pIIIcache.
Compilation of the module itself went fine, there were some warnings as all the times before but the module was compiled and installed
I found that this problem does not occur when I start the Laptop with the Boot-parameter acpi=off (neither oldboot nor pci=noacpi helps)
if the Laptop runs with the pIIcache module loaded on start or per modprobe.
The shortcoming of that is that acpi-functions are deeply missed (powersave functions, button-events).
Does somebody know a solution to this ? Could the activation of the L2-cache be integrated somehow into the kernel?
The use of the Laptop either completely without ACPI or without the use of the L2-cache is, as you surely can imagine, a little bit frustrating 
regards
Reiner Schmidt |
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Post subject: ACPI Problems with kernel 2.6.23.1-xx Versions
Posted: Nov 16, 2007 - 07:30 PM
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Joined: Dec 04, 2006
Posts: 227
Location: Nördliche Lüneburger Heide
Status: Offline
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Hhhm,
no replies. Does nobody elese have similar experiences or (even better) a solution/hint ?
I tested a little bit further and can say that that 2.6.22.9 definitely works and on the 2.6.23.1 kernels (tested now with -13 'til -32) the system freezes when starting the freshly compiled with "modprobe . . . ".
There were some Lines with an "if-else" Routine about "Good APIC" in an acpi.h file of the source code commented out but removing the comments didn' help either.
Any ideas ?
Regards
Reiner Schmidt |
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Post subject: RE: ACPI Problems with kernel 2.6.23.1-xx Versions
Posted: Nov 16, 2007 - 07:42 PM
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Team Member
Joined: Nov 24, 2006
Posts: 1857
Location: w3
Status: Offline
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You should simply get used to the idea that a p3/500 is not state of the art any more. sidux kernels are optimized for modern hardware, which is an enough complicate task. Most hardware using a p3/500 is not alive any more, and definitely not our primary topic. Why don't you just stick with the last kernel working fine? Your machine is defintitely not the right one to test freshest and bleeding edge.
Greetings,
Chris |
_________________
64bit stuff for sidux
development is life - code.zikula.org
an operating system must operate - sidux.com
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Post subject: RE: ACPI Problems with kernel 2.6.23.1-xx Versions
Posted: Nov 16, 2007 - 09:16 PM
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Joined: Nov 25, 2006
Posts: 2479
Status: Offline
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| That said, it's working fine on a Celeron 333a with an Intel BX chipset, the problem about it - ACPI implementations were even worse back then than they are today - and almost impossible to debug without the exact same hardware and software (BIOS version) and being extremely familiar with the ACPI implementation in the linux kernel. |
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Post subject:
Posted: Nov 16, 2007 - 11:21 PM
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Joined: Dec 04, 2006
Posts: 227
Location: Nördliche Lüneburger Heide
Status: Offline
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Well,
looks like i have to stay wit the 2.6.22-Kernel for now (and experiment with newer ones from time to time).
Didn't expect that a change from 2.6.22 to 2.6.23 could bring such heavy changes which result in an immediate system-freeze.
The Hardware processorwise is am P3I MMC-2-Module wich was used in quite a number of laptops. The laptop contained originally PII Processors until 400Mhz but could be pretty easily upgraded with such modules(unless cthe chassis doesn't melt).
The Problem is that the L2-cache is not automatically accessible and you need some additional Programs/Modules under Windows and Linux (2.4 and 2.6) to be able to use it. And the 2.6 er Version worked quite well until now (2.6.22).
Thanks and regards
Reiner Schmidt |
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Post subject:
Posted: Nov 17, 2007 - 12:59 AM
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Joined: Nov 25, 2006
Posts: 2479
Status: Offline
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| It is quite unlikely to be a CPU issue, but most likely an error in the BIOS ACPI implementation - to which different kernel versions react differently. |
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Post subject: ACPI Problems with kernel 2.6.23.1-xx Versions
Posted: Feb 13, 2008 - 09:19 PM
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Joined: Dec 04, 2006
Posts: 227
Location: Nördliche Lüneburger Heide
Status: Offline
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Hello,
playing around with kernel 2.6.24.2 I found today that the little Cache-Activation-Module (pIIIcache) for my older "not state of the art" PIII-Laptop can be compiled again and also can be loaded sucessfully again without freezing the Laptop immediately.
Hope it stays like this for longer as i donot want to throw it away. No acpi problems found yet on it with this kernel. Wether is speeds up the CPU as before I still have to test finally.
regards
Reiner Schmidt |
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Post subject: ACPI Problems now with kernel 2.6.26.1
Posted: Aug 05, 2008 - 09:54 PM
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Joined: Dec 04, 2006
Posts: 227
Location: Nördliche Lüneburger Heide
Status: Offline
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Hi,
here we go again 
From 2.6.24 on it worked until the 2.6.25 series but with 2.6.26. there are coming up the same old problems again. At least it shows the same behaviour.
Compiling of the module for the L2 cache (pIIIcache) works with some warnings (as usual before). Loading it via modprobe freezes the system, Loading it during boot in /etc/modules halts/freezes the system after the message "loading kernel modules"
Maybe its fixed again in newer versions (maybe 2.6.27 (?)) . For now I'll stay on the 2.6.25-series on the laptop.
Regards
Reiner Schmidt[/b] |
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Post subject: ACPI Problems with kernel 2.6.23.1-xx Versions
Posted: Sep 22, 2008 - 09:23 PM
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Joined: Dec 04, 2006
Posts: 227
Location: Nördliche Lüneburger Heide
Status: Offline
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Hmm,
the problem stayed with all 2.6.26 kernels I tested until now.
So experimented with an rc 2.6.27 kernel which I "borrowed" from Kanotix and surprise ==> it works !
After I managed to get it working (it didn't like the sidux environment and downgraded some packages which I then again upgraded behind its back so the system worked again) the module compiled and could be loaded without system-freezing. I am usng it right now.
So there is hope for my old laptop to run again with "pure sidux" as soon as kernel 2.6.27 is released and slh provides some for sidux
regards
Reiner Schmidt |
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