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To: hbarrantes@diotronic.co.cr
From: Warner Losh <imp@bsdimp.com>
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cc: freebsd-mobile@freebsd.org
Subject: Re: 3com 3CCFEM556B pcmcia crashes machine
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> Hi people, I have a 3com 3CCFEM556B pcmcia lan+modem, when I connected it
> shows the model and the next two last lines after machine crashes:
>  
> 
> sio4: type 16550A with a bogus IIR_TXRDY register
> sio4: unable to activate interrupt in fast mode - using normal mode
> 
> I think that it is a IRQ problem, but doesn't have the experience to solve
> it.
> 
> Any suggestion?

Which revision of FreeBSD?  Do other cards work?

Warner