Re: [Discuss-gnuradio] Problem with thread scheduler

[Josh Blum]

On 07/31/2012 09:27 AM, cdong8812 wrote:
> 
> Hi Josh,
> Thank you for the quick reply. I have went through previous post and find
> one that had been fixed by your latest UHD build then. However I found this
> annoying problem again with latest master build and N210. The structure of
> my code is as follows:
> Class Wimax_Receiver(gr.top_block):
> ...
>     def add_fft_cal(self, fft_cal_block):
>         
>         # Get new block
>       self.FFT_calculate = fft_cal_block
>               
>       # Add FFT to output of USRP
>       self.connect(self.u, self.FFT_calculate)
> 
> class FFT_Calculation(gr.top_block):
> ...
>         self.wr = Wimax_Receiver()
>         self.wr.add_fft_cal(self.s2v)
>         self.connect(self.s2v, self.fft_cal, self.c2mag, self.log,
> self.stats)
>       self.connect(self.wr)
> 
> 
> Below is the error message:
> 
> http://old.nabble.com/file/p34235614/QQ%25E6%2588%25AA%25E5%259B%25BE20120731121754.jpg
>  
> 
> 

Well, unless I am misreading, it seems like the flow graph finished
execution.

Are you on ubuntu 10.04 by any chance? I know that the boost on that
version, well its thread interrupt causes the various blocking mutex,
cond, locks, etc to throw uncatchable exceptions... its unfortunate.

If thats not the explanation and its bombing, do you know what call,
what line is the cause?

-josh

> 
> 
> 
> Josh Blum-3 wrote:
>>
>>
>>
>> On 07/29/2012 03:57 PM, cdong8812 wrote:
>>>
>>> I have a problem with the thread scheduler in GNU Radio. I am using USRP
>>> N210
>>> + RFX 2400 daughterboards with UHD. When I run my spectrum sensing codes,
>>> if
>>> I stop the flowgraph it will show the thread-per-block number mismatch
>>> error
>>> message on screen. I wonder if there is any way to get rid of this
>>> problem.
>>
>>
>> Can you post the error message?
>>
>> -josh
>>
>>> My BOOST version is 1.40 and I am using Ubuntu 10.04. UHD information is
>>> shown below:
>>>
>>> address@hidden:/usr/local/src/gnuradio/build# uhd_find_devices
>>> linux; GNU C++ version 4.4.3; Boost_104000; UHD_003.004.002-181-g25649781
>>>
>>
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>>
>