if_bfe/uhci: storm interrupt Fatal trap 12

[pcasidy at casidy.com]

Hi!

I have a brand new Dell Inspiron 9100 laptop with a broadcom integrated
NIC.
I get a panic with 5.3-SNAP, 5.4-PRE and 6.0-SNAP due to a storm
interrupt as soon as I assign an IP address to it (ifconfig or
dhclient).
The storm interrupt is reported on "irq18: bfe0 uhci2".

I have manage to use this laptop with NDISulator but I cannot boot
LiveCD such as FreesBie.

Here are many information I think might be useful, feel free to ask me
more. I can manage to provide a remote access to this laptop (with
NDISulator, so not sure if usable to debug if_bfe ;) )

#dmesg reports:
bfe0: <Broadcom BCM4401 Fast Ethernet> mem 0xfaffe000-0xfaffffff irq 18 at device 0.0 on pci2
bfe0: Ethernet address: 00:11:43:65:ab:d1
miibus0: <MII bus> on bfe0
bmtphy0: <BCM4401 10/100baseTX PHY> on miibus0
bmtphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto

#ifconfig reports:
bfe0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
        options=8<VLAN_MTU>
        ether 00:11:43:65:ab:d1
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active

#uname -a
FreeBSD littleoak 5.4-PRERELEASE FreeBSD 5.4-PRERELEASE #1: Mon Feb 28 16:07:35
UTC 2005     updater at littleoak:/usr/obj/usr/src/sys/LITTLEOAK  i386

#vmstat -i
interrupt                          total       rate
irq1: atkbd0                        1341          2
irq8: rtc                          69991        127
irq9: acpi0                            2          0
irq13: npx0                            1          0
irq14: ata0                        41321         75
irq15: ata1                           58          0
irq16: uhci0 uhci3                   998          1
irq19: cbb0 fwohci+                    1          0
irq0: clk                          54681         99
Total                             168394        307

# irqs useb by uhci
uhci0: <Intel 82801EB (ICH5) USB controller USB-A> port 0xbf80-0xbf9f irq 16 at device 29.0 on pci0
uhci1: <Intel 82801EB (ICH5) USB controller USB-B> port 0xbf60-0xbf7f irq 19 at device 29.1 on pci0
uhci2: <Intel 82801EB (ICH5) USB controller USB-C> port 0xbf40-0xbf5f irq 18 at device 29.2 on pci0
uhci3: <Intel 82801EB (ICH5) USB controller USB-D> port 0xbf20-0xbf3f irq 16 at device 29.3 on pci0

Not sure if it is related with but I have (mostly) random freeze of the
system while browsing files with firefox/mozilla or other file browsers:
but i'll report them lately.

Thanks for your help.

Phil.