3Com Megahertz 3CXM756 PCMCIA modem on 5.3

[M. Warner Losh]

In message: <41F45EAC.4090204 at att.net>
            Duane Winner <duanewinner at att.net> writes:
: pccard0: Allocation failed for cfe 32
: sio4: <3Com Megahertz 3CXM756/3CCM756> at port 0x2f8-0x2ff irq 11 
: function 0 config 33 on pccard0
: device_attach: sio4 attach returned 6
: 
: PPP won't dial out, and I get no "detached" message when I remove it.

Right.  Becuase sio didn't attach.

: Is there a workaround; or does anybody else have one a 3CXM756 and had 
: the same problem?

I've had the problem and fixed it in current.  I'll try to merge it
into RELENG_5.

Warner