아래의 메시지를 잘 살펴보시면
에러의 원인이 하드웨어의 IRQ충돌로 나옵니다..
이에 대한 해결책은,,,
irq를 강제로 할당하거나,,
아님 커널에 해당 랜카드모듈을 삽입시켜
재컴파일 하는 방법밖에 없습니다..
 바다사랑 드림 
  : 구글에서 검색한 결과입니다...
:
: 바다사랑 드림
:
:
: On Fri, 30 Nov 2001 kiing at altern.org wrote:
:
: > I just buyed a ST100S StarTech ethernet card with a 8139C chip in
: > it. The card work fine under windows, but work under Linux (Slackware
: > Linux 8.0, tryed with a 2.2.19 generic kernel and a 2.4.10 custom
: > kernel). When I use ifconfig, I always get the "Device or resource
: > busy" error. I tryed the rtl8139 and the 8139too driver.
: >
: > With the 2.2.19 and rtl8139:
: > rtl8139.c:v1.07 5/6/99 Donald Becker http://cesdis.gsfc.nasa.gov/linux/drivers/rtl8139.html : > eth0: RealTek RTL813
: 9 Fast Ethernet at 0xf800, IRQ 11, 00:50:fc:33:0f:01. >
: > root@kiingbox:~# ifconfig eth0 up
: > SIOCSIFFLAGS: Resource temporarily unavailable
:
: What other device is using IRQ11?  (Check /proc/interrupts)
: There are very few PCI device drivers that haven't been updated to
: properly share an interrupt line.
:
: > The rtl8139-diag -eam output:
: > rtl8139-diag.c:v2.04 8/08/2001 Donald Becker (becker at scyld.com)
: ...
: >    Link Partner Ability register 0x41e1.
:
: This looks fine.
:
: Donald Becker				becker at scyld.com : Scyld Computing Corporation		http://www.scyld.com : 410 Severn Ave. Suite 210		Sec
: ond Generation Beowulf Clusters Annapolis MD 21403			410-990-9993
:
: --
: 개근상 몬 탄다,,ㅠ,ㅠ--개근상 몬 탄다,,ㅠ,ㅠ