You might wanna try and disable the second onboard interface.
Or have the modem card assign a different address (serial port).
Further you could probably face an irq problem. Check carefully if the
irq used for the serial interface/modem, isn't used by another device.
Had a similiar expririence with a NW board. Everything worked fine
in non-SMP mode. The moment I switched to SMP the NIC worked totally
sluggish. Moving the card to different slot then finally made
it assigning a different interrupt and it worked.
mattes
On Fri, 20 Aug 1999, James Bradley wrote:
> Greetings,
>
> I just upgraded to a dual-Celeron board, and everything seems to work
> great except that while running in SMP mode, the modem result codes come
> through sporadically at best. Using minicom, I can send commands to the
> modem (off hook, on hook, dial, etc.), and it does as it's told, however
> the result codes either don't come back at all, or I get at most the
> first letter ('O' of "OK", 'E' of "ERROR"). This is preventing pppd
> from working, which is a serious problem for me. The same kernel
> compiled for UP works just fine. My system is:
>
> Abit BP6 w/ 2xCeleron 366, 256 MB
> USR internal 56k (ISA)
> Linux 2.2.11 (SMP), 2.2.10 (UP)
> (2.2.10 SMP exhibits the same symptoms)
>
> I do get a device conflict detected by the BIOS on bootup (has to do
> with COM2, which is where the modem is), but I ignore it and, again,
> there is no problem in Linux UP (or NT for that matter), only SMP.
> Anyone have any clues?
>
> Thanks,
> James
>
>
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