Still gives the same error message, only with ">gr::vmcircbuf_mmap_tmpfile:
mmap (1): Cannot allocate memory" instead of "
>gr::vmcircbuf_mmap_shm_open: mmap (1): Cannot allocate memory."
On Thu, Nov 21, 2019 at 1:36 PM Philip Balister <phi...@balister.org> wrote:
> Look in
>
> ${HOME}/.gnuradio/prefs/vmcircbuf_default_factory
>
> and see what is there and maybe change to this:
>
> gr::vmcircbuf_mmap_tmpfile_factory
>
> Philip
>
>
> On 11/21/19 4:59 AM, Eamon Heaney wrote:
> > I'm running the sample wifi_tx.grc flowchart from gr-ieee802.11,
> > substituting a null sink for the USRP sink to test it.
> >
> > When I try to run it, it fails with the following error message:
> > "
> >> set_min_output_buffer on block 7 to 207744
> >> set_min_output_buffer on block 9 to 2077440
> >> set_min_output_buffer on block 11 to 2077440
> >> set_min_output_buffer on block 12 to 207744
> >> set_min_output_buffer on block 13 to 415488
> >> set_min_output_buffer on block 14 to 207744
> >> set_min_output_buffer on block 26 to 262144
> >> set_min_output_buffer on block 27 to 96000
> >> set_min_output_buffer on block 31 to 100000
> >> gr::vmcircbuf_mmap_shm_open: mmap (1): Cannot allocate memory
> >> gr::buffer::allocate_buffer: failed to allocate buffer of size 1038720
> KB
> >> gr::vmcircbuf_mmap_shm_open: mmap (1): Cannot allocate memory
> >> gr::buffer::allocate_buffer: failed to allocate buffer of size 1038720
> KB
> >> Traceback (most recent call last):
> >> File "/home/vtti/working/wifi_tx.py", line 297, in <module>
> >> main()
> >> File "/home/vtti/working/wifi_tx.py", line 276, in main
> >> tb.start()
> >> File "/usr/local/lib/python3.6/dist-packages/gnuradio/gr/top_block.py",
> > line 111, >in start
> >> top_block_start_unlocked(self._impl, max_noutput_items)
> >> File
> > "/usr/local/lib/python3.6/dist-packages/gnuradio/gr/runtime_swig.py",
> line
> >> 5828, in top_block_start_unlocked
> >> return _runtime_swig.top_block_start_unlocked(r, max_noutput_items)
> >> RuntimeError: std::bad_alloc
> > "
> > Here's a picture of my flowchart:
> > [image: gnuradio-runtimeError-bad_alloc.png]
> >
> > Tested this on a different machine, and it works fine, so the problem
> isn't
> > with the flowchart itself. I'm working off the maint-3.8 branch,
> installed
> > from source.
> >
> > Any idea why I'm getting this error, or how I could resolve it? Thanks!
> >
>
--
Eamon Heaney
*Fleet Commander*
*President, Model UN at Virginia Tech*
