Re: [Discuss-gnuradio] Segmentation fault in volk_32f_s32f_multiply_32f_a_sse

[Alexandru Csete]

On Sat, Apr 7, 2012 at 4:13 PM, Tom Rondeau <address@hidden> wrote:
> On Sat, Apr 7, 2012 at 9:48 AM, Alexandru Csete <address@hidden> wrote:
>> Greetings,
>>
>> I'm getting segmentation faults in a C++ application when I restart
>> the flow graph, i.e by doing:
>>
>> tb->start()
>>  ...
>> tb->stop()
>> tb->wait()
>> ...
>> tb->start()
>> (crashes)
>>
>> Running the application through a debugger suggests it is
>> volk_32f_s32f_multiply_32f_a_sse which is used by a gr_multiply_ff()
>> block. I end up with the attached assembly dump with a marker
>> highlighting line 19.
>>
>> I have attached a simple python flow graph, which also crashes for me.
>> Note that the python code was originally generated by GRC and it used
>> gr.multiply_const_vff which didn't crash. I manually changed it to
>> gr.multiply_const_ff to provoke the crash.
>>
>> This is happening on Ubuntu 11.04 64 bit and intel i7 processor. I'm
>> also seeing the message "Using Volk machine: sse4_2_64" when I start
>> the graph. GNU Radio is built using cmake.
>>
>> Alex
>
> What version of GNU Radio are you using? This sounds like a bug that
> was fixed a little while ago and is not a release version yet (will be
> in 3.5.3).
>

Hi Tom,

I pulled from origin/master earlier today. Git describe says
v3.5.2.1-103-gfaf1d33
Is there another branch I can try?

Alex