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Old 10-19-2004, 04:50 AM   #1
micha
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Registered: Sep 2003
Location: Germany
Distribution: Ubuntu 8.04
Posts: 33

Rep: Reputation: 15
APIC problem after kernel upgrade


Hi!

I have introduced kernel 2.6.8.1 on my Mandrake 10.0 (Mobo: ASUS P4S800).

From the outside everything looks fine and the system runs without visible problems. But when I look into the logs it seems that there is a APIC problem.

/var/log/messages:
Oct 18 21:39:57 mdk_home kernel: APIC error on CPU0: 40(40)
Oct 18 21:40:28 mdk_home last message repeated 1417 times
Oct 18 21:41:29 mdk_home last message repeated 3478 times
Oct 18 21:42:30 mdk_home last message repeated 4217 times
Oct 18 21:43:31 mdk_home last message repeated 3723 times

dmesg tells me:
APIC error on CPU0: 40(40)
APIC error on CPU0: 40(40)
APIC error on CPU0: 40(40)
APIC error on CPU0: 40(40)
APIC error on CPU0: 40(40)
APIC error on CPU0: 40(40)
APIC error on CPU0: 40(40)
... and 1000 times more

For buiding the kernel I set:
CONFIG_X86_UP_APIC=y
CONFIG_X86_UP_IOAPIC=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y

My bootparameters in lilo.conf are:
image=/boot/vmlinuz-2.6.8.1
label="linux"
root=/dev/hda6
read-only
optional
vga=788
append=" devfs=mount splash=silent pci=bios"
initrd=/boot/initrd-2.6.8.1.img

Can anybody give me a hint for whats going on here?

Thx in advance,
micha
 
Old 10-19-2004, 06:51 AM   #2
hw-tph
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Registered: Sep 2003
Location: Sweden
Distribution: Debian
Posts: 3,032

Rep: Reputation: 58
Try passing the "noapic" to the kernel at boot. This is easily done by adding "noapic" to the string of options you have in your append line, and then run lilo.

Change this:
Code:
append=" devfs=mount splash=silent pci=bios"
...to this:
Code:
append=" devfs=mount splash=silent pci=bios noapic"
Do not forget to run /sbin/lilo when you're done to apply the changes.


Håkan
 
Old 10-19-2004, 07:21 AM   #3
micha
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Registered: Sep 2003
Location: Germany
Distribution: Ubuntu 8.04
Posts: 33

Original Poster
Rep: Reputation: 15
Thanks for the hint. I was thinking about to do so (but I haven´t done it recently).

What I am wondering is why this error occurs. With my 2.6.3-Kernel I haven´t had these problems.

micha
 
  


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