리눅스소스의 문서디렉토리를 살펴보니 관련문서가 있습니다.
 IO-APIC.txt  와 SMP.txt  가 있는데 한번 살펴보시는게 좋겠습니다.
 참고로 간단히 인용하면
 Most (all) Intel SMP boards have the so-called 'IO-APIC', which is
an enhanced interrupt controller, able to route hardware interrupts
to multiple CPUs, or to CPU groups.
 Linux supports the IO-APIC, but unfortunately there are broken boards
out there which make it unsafe to enable the IO-APIC unconditionally.
The Linux policy thus is to enable the IO-APIC only if it's 100% safe, ie.:
            - the board is on the 'whitelist'
         or - the board does not have PCI pins connected to the IO-APIC
         or - the user has overridden blacklisted settings with the
             pirq= boot option line.
 Kernel messages tell you whether the board is 'safe'. If your box
boots with enabled IO-APIC IRQs, then you have nothing else to do. Your
/proc/interrupts will look like this one:
 ...
...
...
 some interrupts will still be 'XT PIC', but this is not a problem, none
of those IRQ sources is 'heavy'.
 If one of your boot messages says 'unlisted/blacklisted board, DISABLING
IO-APIC IRQs', then you should do this to get multi-CPU IO-APIC IRQs
running:
         A) if your board is unlisted, then mail to linux-smp to get
           it into either the white or the blacklist
        B) if your board is blacklisted, then figure out the appropriate
           pirq= option to get your system to boot
  pirq= lines look like the following in /etc/lilo.conf:
         append="pirq=15,11,10"
 the actual numbers depend on your system, on your PCI cards and on their
PCI slot position. Usually PCI slots are 'daisy chained' before they are
connected to the PCI chipset IRQ routing facility (the incoming PIRQ1-4
 ...
...
 : 여기 검색란에 apic 라고 입력하면 글을 올리신 분이 있는데
: 답변이 없군요!!
:
: 저도 같은 에러가 뜹니다.
: cpu 문제 같기도 하구 !! 도데체 apic가 무엇인지 감이 오지않습니다.
:
: 래드햇 7.0은 설치가 되고 부팅이 되는데
: 래드햇 wol....배타버전은 설치된후
: 아래 에러 메세지가 뜨는 군요
: 저는 오로지 하나의 하드 32G(삼성)에
: CPU 는 펜티엄111 550Mhz
: 메모리는 128Mhz 입니다.
: 설치버전은 래드햇배타버전인 wolverine 입니다.
:
: 아래는 부팅시 에러입니다.
:
: APIC error on CPU0: 04(04)
: APIC error on CPU0: 04(04)
: APIC error on CPU0: 04(04)
: APIC error on CPU0: 04(04)
: APIC error on CPU0: 04(04)
: APIC error on CPU0: 04(04)
: APIC error on CPU0: 04(04)
: APIC error on CPU0: 04(04)
: APIC error on CPU0: 04(04)
: APIC error on CPU0: 04(04)
: APIC error on CPU0: 04(04)
: APIC error on CPU0: 04(04)
: APIC error on CPU0: 04(04)
: APIC error on CPU0: 04(04)
: APIC error on CPU0: 04(04)
:
: --
: 이 곳에 서명을 적어주십시오.
: 먼저해결한 선배님들~~: 담배한대 피우고 계세요!!!!