Conflict between nfe(4) and x11/nvidia-driver

Hi, All.

I have notebook with NVIDIA based network adapter and video.
>From dmesg:

nvidia0: <GeForce Go 6100> mem 0xc2000000-0xc2ffffff,0xd0000000-0xdfffffff,0xc1000000-0xc1ffffff irq 5 at device 5.0 on pci0
nvidia0: [GIANT-LOCKED]
nvidia0: [ITHREAD]
...
nfe0: <NVIDIA nForce 430 MCP13 Networking Adapter> port 0x30b8-0x30bf mem 0xc0007000-0xc0007fff irq 5 at device 20.0 on pci0
miibus0: <MII bus> on nfe0
rlphy0: <RTL8201L 10/100 media interface> PHY 1 on miibus0
rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
nfe0: Ethernet address: 00:90:f5:4f:18:1b
nfe0: [FILTER]

Some time ago i've used nve(4) and nvidia-driver without problems. 
But nve(4) is buggy and sometimes have watchdog timeouts.

After switching to nfe(4) i can't use x11/nvidia-driver. 
After some time of running, Xorg process takes 100% of resources and 
system not responds. But i can power off my system via ACPI.
After reboot i have following messages in the /var/log/messages:

Jul 20 16:26:51 btr-nb kernel: nfe0: watchdog timeout (missed Tx interrupts) -- recovering
Jul 20 16:27:39 btr-nb last message repeated 3 times
Jul 20 16:27:58 btr-nb kernel: nfe0: watchdog timeout (missed Tx interrupts) -- recovering
Jul 20 16:28:08 btr-nb kernel: acpi_button0: power button pressed

nfe(4) without x11/nvidia-driver and x11/nvidia-driver without nfe(4) 
works stable.
But i want use both nfe(4) and x11/nvidia-driver...
Can somebody suggest me some tricks?

--
WBR, Andrey V. Elsukov