Quality of programs on Ubuntu 12.04

GNU Radio
1

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.

I cannot recreate this, so I was curious if others have seen similar
issues in their setups.

Thanks,
Tom

2

Any programs or circumstances in particular? I use two machines with
12.04, and I haven’t seen any issues on either.

3

On 06/13/2012 08:09 AM, Tom R. 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.

I cannot recreate this, so I was curious if others have seen similar
issues in their setups.

Just a possibility: the OS went through an upgrade and the gnuradio and
or uhd install was built against an older/incompatible boost?

-josh

4

On Wed, Jun 13, 2012 at 11:27 AM, Josh B. [email protected] wrote:

Just a possibility: the OS went through an upgrade and the gnuradio and
or uhd install was built against an older/incompatible boost?

-josh

Definitely possible. I’ll send it along as a suggestion.

Tom

5

On Wed, Jun 13, 2012 at 8:09 AM, Tom R. [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

6

On Wed, Jun 13, 2012 at 11:26 AM, Nicholas C.
[email protected] wrote:

Any programs or circumstances in particular? I use two machines with 12.04,
and I haven’t seen any issues on either.

Custom apps, I think. I’ll inquire if they can test with uhd_fft or
something.

Tom