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Do you want APIC in R5?
http://forum.linhes.org/viewtopic.php?f=6&t=448		 Page 1 of 1
Author:  cesman [ Sat Jan 10, 2004 2:24 am ]
Post subject:  Do you want APIC in R5?
Let us know if you like APIC disbled w/ the R5 kernel?
Author:  Xsecrets [ Sat Jan 10, 2004 12:10 pm ]
Post subject: 
If you are going with a 2.4 kernel I would disable it cause it causes problems for many of the motherboards used with knoppmyth, If you go with 2.6 kernel I would enable it cause you can dissable it with a boot option. I don't think many people will see problems if it is disabled, but you know there is going to be that one persion that wants 50 devices connected and runs out of irq's.
Author:  eRazor [ Tue Jan 13, 2004 3:58 pm ]
Post subject:  I assume ..
.. that "no" means no apic.

I'd prefer not to have apic, for the following reasons :
1) A lot of Nforce2 boards seem to experience problems when APIC is turned on in the kernel.
1 a) More people seem to have this problem than would run out of interrupts because they have a ton of devices attached to their HTPC (I'm guessing... )
2) The people who are linux newbs (such as myself) come to KnoppMyth because it's supposed to be simple. For the most part it is. Taking out APIC seems like a good way to keep it simple for those with this nForce2 problem. There are probably more of us using KnoppMyth than the linux gurus who probably just installed all the packages for MythTV and configured everything themselves. To these people recompiling the kernel to remove APIC (or come up with a different solution to the nForce2 problem) is no big deal. But they're probably not using KnoppMyth.
To the rest of us - it can be a little intimidating. I've tried recompiling the kernel twice and I've had to reinstall twice.

Anyway... Just my 2c
Author:  rusty0101 [ Thu Jan 15, 2004 11:08 am ]
Post subject:  Detect for it?
Would it be possible to have both kernels available, test to see if the bios is an nForce2 bios, and install the kernel without apic as the situation demands?
Author:  cesman [ Thu Jan 15, 2004 12:28 pm ]
Post subject: 
Yes, it would...
Author:  kyhooper [ Wed Mar 24, 2004 2:46 pm ]
Post subject: 
I would like to see local APIC disabled in the kernel. I am so close to having a usable setup, but can not overcome the fact that the system locks 5 minutes into a scheduled recording.
Author:  kgoodspe@purdue.edu [ Wed Jul 19, 2006 10:57 am ]
Post subject: 
This may be a little off topic, but how do I disable the APIC? I'm having trouble and I am a complete newb to this. Any help would be appreciated.
Author:  tjc [ Wed Jul 19, 2006 5:49 pm ]
Post subject: 
Search for "noapic" http://mysettopbox.tv/phpBB2/viewtopic.php?t=3853&highlight=noapic

Oh, and between the number of builtin devices on my current motherboard, 2 tuner cards, a video card, various drives, ... it's kind of nice to have the APIC support there. Can't we just generate a lilo.conf or grub.whatever that includes the appropriate "noapic" setting for nforce2 MoBos?
Author:  tophee [ Thu Jul 20, 2006 2:18 am ]
Post subject: 
I suffer from the Nforce 2 APIC bug but I don't use the noapic option.

If you turn of 'Front Side Bus (FSB) Spead Spectrum' to OFF in the BIOS it appears to solve the clock drift.

If I'm understanding it right the noapic switch means you can't use powersaving suspend-to-ram/hibernate stuff right? In this age of global warming, looming disaster due to man's carbon emmisions I'd keep it. I

If it is APIC causing problems with clocks, I'd keep it, and point people with nForce 2 boards to turn off FSB SS in their bios ( usually in Advanced Chipset Features menu as seen here http://www.uwsg.iu.edu/hypermail/linux/kernel/0410.1/1517.html thread.)

What are the other benifits for not including it?

That's my 2 pence. :)
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