rtl8139.c V1.04 conflicts with CMD646U2 PCI-IDE controller

Donald Becker becker@cesdis1.gsfc.nasa.gov
Fri Oct 9 12:43:20 1998


On Fri, 9 Oct 1998, MHC wrote:

> kernel 2.0.34,
> rtl8139.c v1.04,
> with CMD 646U2 PCI IDE controller
...
> ide2: at 0x6000-0x6007,0x6402 on IRQ9
...
> eth0: RealTek RTL8139 FastEthernet at 0x7400, IRQ 9, 00:00:e8:4f:37:37

> root>
> after login for a while,
> 
> eth0: Tramsnit timeout status 01 0000  ...04
> eth0: Txqueue start entry 4 dirty entry 0
> 
> If CMD 646 isn't activated, then RTL8139 works fine.
> Is it something to do with the fact that the two
> PCI cards share IRQ 9 ?

Yes.  Most IDE drivers will not share PCI IRQs.
(An alternate problem is that the IDE controller is using up too much
bandwidth, or has too-long bursts.  But that wouldn't show up immediately.) 

Donald Becker					  becker@cesdis.gsfc.nasa.gov
USRA-CESDIS, Center of Excellence in Space Data and Information Sciences.
Code 930.5, Goddard Space Flight Center,  Greenbelt, MD.  20771
301-286-0882	     http://cesdis.gsfc.nasa.gov/people/becker/whoiam.html

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