Hi list,

I would like to report that I finally "solved" my problem, in a way I hope will not jeopardize my system.

I was discussing with a Linux-expert friend, when he suggested to disable the ACPI kernel flag (acpi=off from GRUB). I gave it a try, and my laptop has never frozen since, even after 3 or 4 hours of intense use of 64studio (with my ipw2100 module loaded and my wireless connection up and running).


My ("gut feeling") guess is that there is some incompatibility between my motherboard and the ACPI interface.

I don't know if this is something safe to do, but I've noticed no unusual behavior other than the battery control applet saying that I'm connected to the power outlet even when I'm not...


In any case, I can finally use 64studio normally (and it's definitely cool!).


All the best,
Philippe.


On Nov 15, 2007 10:41 AM, Philippe Macaire <
philippe.macaire@gmail.com> wrote:
I have an ACER TravelMate 660 with 64studio 2.0
installed on an
external USB drive.

I'm burdened with the following problem: apparently when the fan
starts to blow my whole system freezes (image on the screen totally
still, keyboard and mouse unresponsive) and the only solution for me

is to press the power off button for several seconds and restart the
system (with ext3 file system repair etc.).

I can't be absolutely sure the fan start is the problem (it could
actually be an effect of a 100% CPU lock -- but I would expect it to

start only after a few seconds, whereas it starts exactly when the
system freezes).

I've found no correlation with the applications I was using or the
operation I was performing (sometimes it happens while using IceWeasel

with no other apps running, sometimes while using Rosegarden, etc.).

Has anybody experienced something similar? I've simply no idea what to
check to look into this issue.


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I have a question regarding these ACPI and APIC boot options - I have a
Gigabyte GA-M55S-S3 motherboard which has the nforce5 (550) chipset with an
AMD X2 5200+. When I've tried running Live Linux distros I always get the
MP-BIOS bug: 8254 timer not connected to IO-APIC. I need to pass the noapic
option to run these. But when I installed 64studio I didn't encounter this
issue... And yet I'm not convinced all is ok.

Can anyone shed any light on how I can tell if both my cores are being used?
Command lines or GUI utility I can use to check?

Cheers
Marco



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noapic will disable SMP

Check /proc/cpuinfo

There will be info for processor: 0 and processor:1 if both cores are
detected.

I have a similar chipset in two machines, one a dual core laptop
(Compaq/HP AM2 Turion) and the other based around a 4400+ and a
Asus M2N32 WS Professional (nForce 590). I found that the machines
stabilized around the kernel version 2.6.22, I also had to apply the
latest bios updates. There were issues but most have, as far as I know,
been resolved.

The take home message is that I have two similar platforms that had
problems but are now working extremely well. If you want the details of
the problem(s) you may wish to look at the linux kernel mailing list.

Marco wrote:
> I have a question regarding these ACPI and APIC boot options - I have a
> Gigabyte GA-M55S-S3 motherboard which has the nforce5 (550) chipset with an
> AMD X2 5200+. When I've tried running Live Linux distros I always get the
> MP-BIOS bug: 8254 timer not connected to IO-APIC. I need to pass the noapic
> option to run these. But when I installed 64studio I didn't encounter this
> issue... And yet I'm not convinced all is ok.
>
> Can anyone shed any light on how I can tell if both my cores are being used?
> Command lines or GUI utility I can use to check?
>
> Cheers
> Marco
>
>
>
> _______________________________________________
> 64studio-users mailing list
> 64studio-users@64studio.com
> http://lists.64studio.com/mailman/listinfo/64studio-users
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