On Wed, Jun 13, 2012 at 8:09 AM, Tom Rondeau <[email protected]> wrote:


> I've received some reports about strange behavior of running GNU Radio
> programs on Ubuntu 12.04, specifically when working with USRP signals.
> Seems like programs are locking up. The same setup (version of GNU
> Radio and UHD) apparently has no problems on 11.10, though.
>

There was a brief window where these symptoms occurred that was bisected
down to this commit:

http://gnuradio.org/cgit/gnuradio.git/commit/?id=c78d307ecd5dac4e28190e5aa9b8377538f65ffa

It was reverted on master->next June 7.

The system was a freshly installed 64-bit Ubuntu 12.04 with Boost 1.46.1,
using the build-gnuradio script for compile and install on June 6.  After
the revert the issue went away entirely.

That original commit looks entirely correct, so I suspect there is a Boost
problem with mutexes in 1.46.

I can't say whether or not this is the cause of the issue you're hearing
about.  If so, a current master build with proper and verified cleansing of
the old UHD/GNU Radio libraries should make the symptoms go away.

Johnathan
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