|From:||Jung Il Choi|
|Subject:||[Discuss-gnuradio] kernel freeze during continuous transmission using USRP2|
|Date:||Mon, 21 Dec 2009 15:31:23 -0800|
|User-agent:||Thunderbird 18.104.22.168 (X11/20080925)|
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
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