Red Hat Bugzilla – Bug 53864
Could not enable APIC
Last modified: 2007-04-18 12:37:15 EDT
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User-Agent: Mozilla/4.78 [en] (X11; U; SunOS 5.8 sun4u)
Description of problem:
Local APIC disabled by BIOS -- reenabling.
Could not enable APIC!
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. boot the machine
2. show the boot log
3. or # dmesg
laptop dell inspiron 4000 (bios a16)
the kernel is 2.4.3-12 for i686
Does the machine keep functioning? The message in itself is harmless...
The system is very stable and it run ok.
Well there is nothing to worry about; "APIC" is an advanced "interrupt
controller", and is used mostly for big servers. Linux tries to enable it, but
not all systems have one (and you don't need one; laptops try to avoid such
components often because they consume energy), and it will fall back to the
normal interrupt controller