[Discuss-gnuradio] kernel freeze during continuous transmission using USRP2

[Jung Il Choi]

Hi,

I am using ucla-zigbee stack for continuously transmitting a fixed 
symbol (all zeroes) for 802.15.4.
I finally made it to work on USRP2 with RFX2400, but now my machine's 
kernel freezes after 5~10 minutes (even no ping responses). Basically, 
using sig_source I generate a stream of a constant 0's, and feed it to 
802.15.4 modulator to transmit O-QPSK signal.

When I do packetized transmissions once a second, I do not see the 
freezing problem. I only see this when I continuously transmit.

Does anyone has any clue/suggestion? I am using Ubuntu 8.04 with the 
kernel 2.6.24-21, and using D-Link DGE-560T gigabit pci-express adapter.
Thanks,
Jung Il Choi