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Old 08-10-03, 08:28 PM   #1
kgroombr
Using Linux Since 1995
 
Join Date: Sep 2002
Posts: 130
Default $20 sent to whoever gives me the fix this problem (seriously).

Seriously, I will send $20 to the person who gives me the fix to this.

As I posted in a previous post, I was getting severe lockups with my system. I have now fixed the lockups but at the expense of a system that runs slower than molasses in January.

The system:

Abit NF7-S 2.0 with the BIOS 18 update (latest one as of 11 Aug). Barton 2500+, Maxtor 160GB and Seagate 80GB on a promise ultra 133 tx2 controller. LG DVD on EIDE #1 of the nforce2 and a Zip 250 on EIDE #2 of the nforce2.

Video card: Xtasy Geforce3 Ti500
Kworld BT878 capture card
Advansys SCSI controller

Kernel is 2.4.22-pre2 (something between 2.4.21 and this pre2 kernel fixed my lockups, but now it runs super slow).

For some reason I have to have ACPI turned on in order for my lockups to go away. This causes my system to run super slow and here is what I think is going on:

Everytime I added a device that required an interrupt (using modprobe), my system would get progressively slower. At one point it was so slow that it took (no joke) about 45 minutes to load X.

Here is /proc/interrupts immediately after booting:

CPU0
0: 21576 IO-APIC-edge timer
1: 132 IO-APIC-edge keyboard
2: 0 XT-PIC cascade
6: 6 IO-APIC-edge floppy
8: 1 IO-APIC-edge rtc
9: 0 IO-APIC-level acpi
12: 4745 IO-APIC-edge PS/2 Mouse
14: 7 IO-APIC-edge ide0
15: 22 IO-APIC-edge ide1
16: 23970871 IO-APIC-level bttv
18: 25148787 IO-APIC-level ide2, ide3
19: 19967973 IO-APIC-level nvidia
22: 10012602 IO-APIC-level NVidia nForce2
NMI: 0
LOC: 21524
ERR: 51
MIS: 12207


Anything loaded in the APIC irq range is totally wacked. IRQ 22 is my sound, and I noticed that it was the only one that currently not changing.

Here is /proc/interrupts only moments later:

CPU0
0: 35578 IO-APIC-edge timer
1: 1111 IO-APIC-edge keyboard
2: 0 XT-PIC cascade
6: 13 IO-APIC-edge floppy
8: 1 IO-APIC-edge rtc
9: 0 IO-APIC-level acpi
12: 5185 IO-APIC-edge PS/2 Mouse
14: 7 IO-APIC-edge ide0
15: 22 IO-APIC-edge ide1
16: 40344618 IO-APIC-level bttv
18: 41495938 IO-APIC-level ide2, ide3
19: 36337043 IO-APIC-level nvidia
22: 10012602 IO-APIC-level NVidia nForce2
NMI: 0
LOC: 35490
ERR: 53
MIS: 12345

Checking out my processes, I found a aplay process that appeared to be hung up (plays the intro music when logging into KDE). I killed the process and checked out /proc/interrupts again:

CPU0
0: 41843 IO-APIC-edge timer
1: 1568 IO-APIC-edge keyboard
2: 0 XT-PIC cascade
6: 20 IO-APIC-edge floppy
8: 1 IO-APIC-edge rtc
9: 0 IO-APIC-level acpi
12: 5185 IO-APIC-edge PS/2 Mouse
14: 7 IO-APIC-edge ide0
15: 22 IO-APIC-edge ide1
16: 46664621 IO-APIC-level bttv
18: 47809364 IO-APIC-level ide2, ide3
19: 42653097 IO-APIC-level nvidia
22: 21695941 IO-APIC-level NVidia nForce2
NMI: 0
LOC: 41735
ERR: 53
MIS: 12401

In order to run these, I had to rmmod by SCSI card (for my CDRW), and my USB ports). If I didn't, the system would be even so slow it would have taken me forever to do this test.

Again, if I turn APIC off, the system runs super fast, but unfortunately will lock in in about two to three minutes.

Sound will sometimes play a fraction of a second of the sound, but then appears to hang.

It appears that the IRQs go berzerk with APIC.

Again, $20 goes to the person that gives me the correct fix to this problem. No hack, and nothing like "buy another motherboard".

Need more info, just let me know. More than happy to provide.

Thanks,
Ken
__________________
Kenton A. Groombridge
kgroombr@comcast.net
http://home.comcast.net/~kgroombr/
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