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Re: [Discuss-gnuradio] tunnel.py buffer crash

From: yyzhuang
Subject: Re: [Discuss-gnuradio] tunnel.py buffer crash
Date: Wed, 25 Mar 2009 20:14:32 -0700 (PDT)

Hi Eric,

We've made a stupid mistake. My friend installed gnuradio from trunk in
their lab. I just figure out this problem. After we reinstalled there's no
buffer problem anymore.


Eric Blossom wrote:
> On Thu, Mar 19, 2009 at 09:12:00PM -0700, Eric Blossom wrote:
>> On Thu, Mar 19, 2009 at 08:50:13PM -0700, yyzhuang wrote:
>> > 
>> > I'm sorry. 
>> > 
>> > If we do ./tunnel and ping between two boxes over the air, both tx and
>> rx
>> > breaks after a few ICMP packets exchange. They don't break at the same
>> time
>> > though, but it does happen every time. If we do over channel emulator
>> (by
>> > connecting the antenna of USRP to the emulator), we can ping the two
>> > machines much longer, but it still breaks.
>> > 
>> > Sorry again, no offense. I didn't mean to be rude or something.
>> No problem.  I didn't take it that way.
>> I'm busy with something else right now, but I think I can get you some
>> instrumented code that will locate the offending block sometime
>> tomorrow.  It's great news that it fails regularly for you!
>> Eric
> We fixed a bug yesterday in gr_clock_recovery_mm_ff.cc [10646], which
> is used by the GMSK demodulator, and which could be causing the
> problem you are seeing.
> Can you please checkout a copy of the trunk, build and install it and
> try to reproduce the problem you've been seeing?
> Thanks!
> Eric
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