regression in dc(4) from 7.2 to RELENG_8

[Chris Buechler]

one of our users has reported a regression in dc(4) on RELENG_8, the  
cards work fine on 7.2 and previous versions, but no longer function  
at all with RELENG_8 as of about a week ago.
http://forum.pfsense.org/index.php/topic,24964.msg129488.html#msg129488

dmesg from it working, from 7.2:
cbb0: <ToPIC100 PCI-CardBus Bridge> at device 11.0 on pci0
cardbus0: <CardBus bus> on cbb0
pccard0: <16-bit PCCard bus> on cbb0
cbb0: [ITHREAD]
cbb1: <ToPIC100 PCI-CardBus Bridge> at device 11.1 on pci0
cardbus1: <CardBus bus> on cbb1
pccard1: <16-bit PCCard bus> on cbb1
cbb1: [ITHREAD]
dc0: <Xircom X3201 10/100BaseTX> port 0x1080-0x10ff mem  
0x88000000-0x880007ff,0x88001000-0x880017ff irq 11 at device 0.0 on  
cardbus0
miibus1: <MII bus> on dc0
tdkphy0: <TDK 78Q2120 media interface> PHY 0 on miibus1
tdkphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
dc0: Ethernet address: 00:xx:xx:xx:xx:56
dc0: [ITHREAD]
dc1: <Xircom X3201 10/100BaseTX> port 0x1100-0x117f mem  
0x88002000-0x880027ff,0x88003000-0x880037ff irq 11 at device 0.0 on  
cardbus1
miibus2: <MII bus> on dc1
tdkphy1: <TDK 78Q2120 media interface> PHY 0 on miibus2
tdkphy1:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
dc1: Ethernet address: 00:xx:xx:xx:xx:66
dc1: [ITHREAD]

Not working, RELENG_8:
cbb0: <ToPIC100 PCI-CardBus Bridge> at device 11.0 on pci0
cardbus0: <CardBus bus> on cbb0
pccard0: <16-bit PCCard bus> on cbb0
cbb0: [FILTER]
cbb1: <ToPIC100 PCI-CardBus Bridge> at device 11.1 on pci0
cardbus1: <CardBus bus> on cbb1
pccard1: <16-bit PCCard bus> on cbb1
cbb1: [FILTER]
cardbus0: Unable to allocate resource to read CIS.
cardbus0: Unable to allocate resources for CIS
cardbus0: Unable to allocate resource to read CIS.
cardbus0: Unable to allocate resources for CIS
dc0: <Xircom X3201 10/100BaseTX> port 0x1080-0x10ff mem  
0x88000000-0x880007ff,0x88001000-0x880017ff irq 11 at device 0.0 on  
cardbus0
dc0: No station address in CIS!
device_attach: dc0 attach returned 6
cardbus1: Unable to allocate resource to read CIS.
cardbus1: Unable to allocate resources for CIS
cardbus1: Unable to allocate resource to read CIS.
cardbus1: Unable to allocate resources for CIS
dc1: <Xircom X3201 10/100BaseTX> port 0x1080-0x10ff mem  
0x88002000-0x880027ff,0x88003000-0x880037ff irq 11 at device 0.0 on  
cardbus1
dc1: No station address in CIS!
device_attach: dc1 attach returned 6


We can apply patches to our builds for this person and others to test  
and confirm the fix, before it's committed into FreeBSD.

Chris