uart and puc attach conflict

Hello!

I have a problem with  multi-port card based on Nm9845 chip.
It's a card with 4 com-ports.
It perfectly works with puc(4) and sio(4) drivers if they compiled into 
kernel.
or with puc(4) and uart(4) drivers if they loaded manualy.
But if puc(4) and uart(4) are compiled into kernel or loaded from
loader.conf  - problem appears.

Instead of puc(4) attaching to the device, and uarts attaching to the puc0,
I see that uart(4) driver attaches to the device itself.
If I force puc(4) to attach first using kldload, then everything goes OK.

It seems to be similar to the next problem report
>Number:         87845
>Category:       kern
>Synopsis:       sio(4) should on probe return BUS_PROBE_GENERIC to allow 
>other drivers to attach [fix]

There is my /var/run/dmesg.boot
if both puc(4) and uart(4) conpiled into kernel

mike_at_$ cat /var/run/dmesg.boot
Copyright (c) 1992-2005 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD 6.0-RC1 #14: Sun Oct 23 22:06:27 MSD 2005
    root_at_:/usr/obj/usr/src/sys/GUARDIAN
ACPI APIC Table: <Nvidia AWRDACPI>
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: AMD Athlon(tm) 64 Processor 3000+ (1808.34-MHz 686-class CPU)
  Origin = "AuthenticAMD"  Id = 0x20ff2  Stepping = 2
  Features=0x78bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2>
  Features2=0x1<SSE3>
  AMD Features=0xe2500800<SYSCALL,NX,MMX+,<b25>,LM,3DNow+,3DNow>
real memory  = 536805376 (511 MB)
avail memory = 515268608 (491 MB)
ioapic0 <Version 1.1> irqs 0-23 on motherboard
acpi0: <Nvidia AWRDACPI> on motherboard
acpi_bus_number: can't get _ADR
acpi_bus_number: can't get _ADR
acpi0: Power Button (fixed)
acpi_bus_number: can't get _ADR
acpi_bus_number: can't get _ADR
acpi_bus_number: can't get _ADR
acpi_bus_number: can't get _ADR
pci_link0: <ACPI PCI Link LNK1> irq 10 on acpi0
pci_link1: <ACPI PCI Link LNK2> irq 3 on acpi0
pci_link2: <ACPI PCI Link LNK3> irq 5 on acpi0
pci_link3: <ACPI PCI Link LNK4> on acpi0
pci_link4: <ACPI PCI Link LNK5> on acpi0
pci_link5: <ACPI PCI Link LUBA> irq 11 on acpi0
pci_link6: <ACPI PCI Link LUBB> on acpi0
pci_link7: <ACPI PCI Link LMAC> irq 11 on acpi0
pci_link8: <ACPI PCI Link LACI> on acpi0
pci_link9: <ACPI PCI Link LMCI> irq 5 on acpi0
pci_link10: <ACPI PCI Link LSMB> irq 10 on acpi0
pci_link11: <ACPI PCI Link LUB2> irq 3 on acpi0
pci_link12: <ACPI PCI Link LIDE> on acpi0
pci_link13: <ACPI PCI Link LSID> irq 10 on acpi0
pci_link14: <ACPI PCI Link LFID> irq 11 on acpi0
pci_link15: <ACPI PCI Link LPCA> on acpi0
pci_link16: <ACPI PCI Link APC1> irq 0 on acpi0
pci_link17: <ACPI PCI Link APC2> irq 0 on acpi0
pci_link18: <ACPI PCI Link APC3> irq 0 on acpi0
pci_link19: <ACPI PCI Link APC4> irq 0 on acpi0
pci_link20: <ACPI PCI Link APC5> irq 16 on acpi0
pci_link21: <ACPI PCI Link APCF> irq 0 on acpi0
pci_link22: <ACPI PCI Link APCG> irq 0 on acpi0
pci_link23: <ACPI PCI Link APCH> irq 0 on acpi0
pci_link24: <ACPI PCI Link APCJ> irq 0 on acpi0
pci_link25: <ACPI PCI Link APCK> irq 0 on acpi0
pci_link26: <ACPI PCI Link APCS> irq 0 on acpi0
pci_link27: <ACPI PCI Link APCL> irq 0 on acpi0
pci_link28: <ACPI PCI Link APCZ> irq 0 on acpi0
pci_link29: <ACPI PCI Link APSI> irq 0 on acpi0
pci_link30: <ACPI PCI Link APSJ> irq 0 on acpi0
pci_link31: <ACPI PCI Link APCP> irq 0 on acpi0
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x4008-0x400b on acpi0
cpu0: <ACPI CPU> on acpi0
acpi_button0: <Power Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
pci0: <memory> at device 0.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 1.0 on pci0
isa0: <ISA bus> on isab0
pci0: <serial bus, SMBus> at device 1.1 (no driver attached)
atapci0: <nVidia nForce4 UDMA133 controller> port 
0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xfb00-0xfb0f at device 6.0 on pci0
ata0: <ATA channel 0> on atapci0
ata1: <ATA channel 1> on atapci0
atapci1: <nVidia nForce4 SATA150 controller> port 
0x9f0-0x9f7,0xbf0-0xbf3,0x970-0x977,0xb70-0xb73,0xf600-0xf60f mem 
0xfebfc000-0xfebfcfff irq 21 at device 7.0 on pci0
ata2: <ATA channel 0> on atapci1
ata3: <ATA channel 1> on atapci1
atapci2: <nVidia nForce4 SATA150 controller> port 
0x9e0-0x9e7,0xbe0-0xbe3,0x960-0x967,0xb60-0xb63,0xf100-0xf10f mem 
0xfebfb000-0xfebfbfff irq 22 at device 8.0 on pci0
ata4: <ATA channel 0> on atapci2
ata5: <ATA channel 1> on atapci2
pcib1: <ACPI PCI-PCI bridge> at device 9.0 on pci0
pci_link17: BIOS IRQ 21 for 0.7.INTA is invalid
pci_link18: BIOS IRQ 22 for 0.8.INTA is invalid
pci1: <ACPI PCI bus> on pcib1
uart0: <Non-standard ns8250 class UART with FIFOs> port 
0xdf00-0xdf07,0xde00-0xde07,0xdd00-0xdd07,0xdc00-0xdc07,0xdb00-0xdb07,0xda00-0xda0f 
irq 16 at device 6.0 on pci1
pci1: <display, VGA> at device 7.0 (no driver attached)
em0: <Intel(R) PRO/1000 Network Connection, Version - 2.1.7> port 
0xd900-0xd93f mem 0xfbfe0000-0xfbffffff,0xfbfc0000-0xfbfdffff irq 18 at 
device 8.0 on pci1
em0: Ethernet address: 00:07:e9:0f:33:c7
em0:  Speed:N/A  Duplex:N/A
nve0: <NVIDIA nForce MCP9 Networking Adapter> port 0xf000-0xf007 mem 
0xfebfa000-0xfebfafff irq 23 at device 10.0 on pci0
nve0: Ethernet address 00:13:d3:38:9a:67
miibus0: <MII bus> on nve0
ukphy0: <Generic IEEE 802.3u media interface> on miibus0
ukphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 
1000baseT-FDX, auto
nve0: Ethernet address: 00:13:d3:38:9a:67
nve0: [GIANT-LOCKED]
pcib2: <ACPI PCI-PCI bridge> at device 11.0 on pci0
pci2: <ACPI PCI bus> on pcib2
pcib3: <ACPI PCI-PCI bridge> at device 12.0 on pci0
pci3: <ACPI PCI bus> on pcib3
pcib4: <ACPI PCI-PCI bridge> at device 13.0 on pci0
pci4: <ACPI PCI bus> on pcib4
pcib5: <ACPI PCI-PCI bridge> at device 14.0 on pci0
pci5: <ACPI PCI bus> on pcib5
acpi_tz0: <Thermal Zone> on acpi0
fdc0: <floppy drive controller> port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on acpi0
fdc0: [FAST]
uart1: <16550 or compatible> port 0x3f8-0x3ff irq 4 on acpi0
ppc0: <Standard parallel printer port> port 0x378-0x37f,0x778-0x77b irq 7 on 
acpi0
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
ppbus0: <Parallel port bus> on ppc0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
npx0: [FAST]
npx0: <math processor> on motherboard
npx0: INT 16 interface
pmtimer0 on isa0
orm0: <ISA Option ROMs> at iomem 0xc0000-0xc7fff,0xcf000-0xd07ff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1: port may not be enabled
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounter "TSC" frequency 1808343875 Hz quality 800
Timecounters tick every 1.000 msec
ipfw2 (+ipv6) initialized, divert loadable, rule-based forwarding enabled, 
default to accept, logging limited to 1000 packets/entry by default
ad0: 190782MB <Seagate ST3200826AS 3.03> at ata2-master SATA150
ad1: 190782MB <Seagate ST3200826AS 3.03> at ata3-master SATA150
ar0: 190782MB <nVidia MediaShield RAID1> status: READY
ar0: disk0 READY (master) using ad0 at ata2-master
ar0: disk1 READY (mirror) using ad1 at ata3-master
Trying to mount root from ufs:/dev/ar0s1a

Mike G.
-- MSU Microelectronics
E-mail: mike_at_v.gz.ru