On Tuesday 30 December 2003 07:41 am, JoeHill wrote:
> > less
> > /usr/src/linux-2.4.23-0.rc5.2mdk/Documentation/kernel-paramet
> >ers.txt
> >
> > � � That's for my kernel version. Try 'locate -i parameters'
> > to find yours. �IIRC, 'nolapic' is no local advanced
> > programmable interrupt control. �ie, disable
> >
> > lapic � � � � � [IA-32,APIC] Enable the local APIC even if
> > BIOS � disabled it.
> >
> > � �FWIW, �not to be confused with (and mostly used by
> > laptops), ACPI - Advanced Configuration and Power Interface
>
> Tom, do you know why enabling/disabling ACPI and or APIC (now
> that I *think* I understand the distinction...;-)) would have
> such an effect on stability? I have found since disabling ACPI
> that my system is less prone to lockups, actually haven't had
> one in a week now.
No, I don't really know why, but many varied systems have ACPI
troubles. I believe Mandrake's default is to disable it for just
that reason. It's really only need by some laptops anyhow. Just
about all desktops do just fine using APM for power management.
> Also, doing some Googling, as I mentioned
> above, I found that disabling APIC is claimed to have positive
> results in terms of preventing some file system problems (in my
> case, file copy(s) failed, segfaults, cd's wouldn't burn
> because FIFO timed out, etc.) that required a reboot. I've
> added "noapic" to lilo.conf as suggested in my Google of some
> mailing list archives, but I haven't rebooted in a coupla days
> so no anecdotal evidence yet, but that seemed to be the
> consensus.
I never needed to disable APIC, even tho this motherboard I
got recently (Asus A7V600) gives me a few IRQ warnings in dmesg.
3 <> 5, and a 'spurious' 7 (whatever that means?), but I'm not
usin any of those anyhow. No conflicts, no problems. noapic,
like mem=nopentium, never seems to have any affect at all on any
AMD systems I've had using 2.4.x kernels. IIRC, on some systems
it's mandatory to use apic, eg, SMP systems.
--
Tom Brinkman Corpus Christi, Texas
Want to buy your Pack or Services from MandrakeSoft?
Go to http://www.mandrakestore.com
