Re: [Discuss-gnuradio] gnuradio on ARM: gr_vmcircbuf_sysv_shm: shmat (3): Invalid argument

[Tom Rondeau]

On Thu, Apr 18, 2013 at 12:55 PM, Monahan-Mitchell, Tim
<address@hidden> wrote:
>>On Thu, Apr 18, 2013 at 8:57 AM, Philip Balister <address@hidden> wrote:
>>> On 04/17/2013 07:28 PM, Monahan-Mitchell, Tim wrote:
>>>> gnuradio maint branch, v.3.6.4.1
>>>>
>>>> 'make test' fails, due to gr-core-test-all failing.
>>>>
>>>> At first, I was getting an error due to the "shmat (2)" line above where 
>>>> this error occurs, but it has settled on (3).
>>>> I added a couple lines of extra debug output (source code is below the 
>>>> error output).
>>>
>>> I am digging into repressed memories here, so people cirrect me if I am
>>> wrong.
>>>
>>> GNU Radio allocates a large buffer to use for block input/output
>>> buffers. It has about three ways to do this, one of which uses shmem
>>> calls. These calls fail on arm due to some internal difference between
>>> x86 and arm. (I forget what the detail is)
>>>
>>> Since this fails, it tries another allocator that succeeds and saves
>>> this info in a dot file. I think you see the message from gnuradio once,
>>> then you do not see it again.
>>>
>>> Philip
>>
>>Yep, that's right.
>>
>>Tom
>
> OK, so I ran 'ctest -V' twice in a row without code changes or building, and 
> got the
> same error output below for gr-core-test-all each time:
>
> test 6
>         Start   6: gr-core-test-all
>
> 6: Test command: /bin/sh 
> "/src/gnuradio/build/gnuradio-core/src/tests/gr-core-test-all_test.sh"
> 6: Test timeout computed to be: 9.99988e+06
> 6: Testing gr_vmcircbuf_createfilemapping_factory...
> 6: gr_vmcircbuf_createfilemapping: createfilemapping is not available
> 6: ....... gr_vmcircbuf_createfilemapping_factory: Doesn't work
> 6: Testing gr_vmcircbuf_sysv_shm_factory...
> 6: gr_vmcircbuf_sysv_shm: shmat (2): Invalid argument
> 6: ....... gr_vmcircbuf_sysv_shm_factory: Doesn't work
> 6: Testing gr_vmcircbuf_mmap_shm_open_factory...
> 6: ....... gr_vmcircbuf_mmap_shm_open_factory: OK
> 6: Testing gr_vmcircbuf_mmap_tmpfile_factory...
> 6: ....... gr_vmcircbuf_mmap_tmpfile_factory: OK
> 6: ...........................NOTICE: test from c++ NOTICE
> 6: DEBUG: test from c++ DEBUG
> 6: INFO: test from c++ INFO
> 6: WARN: test from c++ WARN
> 6: ERROR: test from c++ ERROR
> 6: FATAL: test from c++ FATAL
> 6: .....Using Volk machine: generic
> 6:
> 6: NOTE: This is supposed to produce an error from gr_block_executor
> 6: Error: gr_block_executor: propagation_policy 'ONE-TO-ONE' requires ninputs 
> == noutputs
> 6:  [generic] [armv7_a]
> 6:  [generic] [armv7_a]
> 6:  [generic]
> 6:  [generic]
> 6:  [generic]
> 6:  [generic] [armv7_a]
> 6: >>> gr_fir_fff: using armv7_a
> 6: >>> gr_fir_ccf: using armv7_a
> 6: 
> ........................................................................F........
> 6:
>   6/222 Test   #6: gr-core-test-all .................***Failed   44.44 sec
>
> So what is the real error here?
>
> Thanks,
> Tim

Tim,

You can find out which error is failing by looking at the output xml
file from the tests here:
gnuradio-core/src/tests/.unittests/gnuradio_core_all.xml

Tom