kern/39780: dual function pcmcia cards don't work properly (power issues?)

[christos%zoulas.com@localhost]

>Number:         39780
>Category:       kern
>Synopsis:       dual function pcmcia cards don't work properly (power issues?)
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Oct 21 23:10:00 +0000 2008
>Originator:     Christos Zoulas
>Release:        NetBSD 4.99.73
>Organization:
        Mobile, Inc.
>Environment:
System: NetBSD shiny.astron.com 4.99.73 NetBSD 4.99.73 (SHINY) #26: Sat Oct 18 
21:30:59 EDT 2008 
christos%shiny.astron.com@localhost:/usr/src/sys/arch/i386/compile/SHINY i386
Architecture: i386
Machine: i386
>Description:

ep0 at pcmcia0 function 0: <3Com, Megahertz 3CCFEM556B, A, 001>
ep0: wrote 0x7ff to TX_AVAIL_THRESH, read back 0xffff. Interface disabled
ep0: couldn't configure controller
com2 at pcmcia0 function 1: <3Com, Megahertz 3CCFEM556B, A, 001>
com2: ns16550a, working fifo

ep0 at pcmcia0 function 0: <3Com Corporation, 3C562D/3C563D, EtherLink III, LAN+
Modem PC Card>
ep0: address 00:60:97:85:58:7f, 8KB byte-wide FIFO, 5:3 Rx:Tx split 
ep0: 10baseT, 10base5, 10base2 (default 10baseT)
com0 at pcmcia0 function 1: <3Com Corporation, 3C562D/3C563D, EtherLink III, LAN
+Modem PC Card>
com0: ns16550a, working fifo

These cards used to work with a kernel circa August 2007, but they don't work
with a kernel of August 2008.

>How-To-Repeat:
        in the first card, network does not work either.
        in both connecting to modem hangs the process and makes it unkillable.
>Fix:
        PLEASE!