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Re: [Discuss-gnuradio] kernel freeze during continuous transmission usin

From: Matt Ettus
Subject: Re: [Discuss-gnuradio] kernel freeze during continuous transmission using USRP2
Date: Mon, 21 Dec 2009 15:49:53 -0800
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20091209 Fedora/3.0-4.fc12 Thunderbird/3.0

On 12/21/2009 03:31 PM, Jung Il Choi wrote:

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.
Jung Il Choi

I've never seen this happen. You are using a pretty old kernel and distribution, so you might try upgrading.


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