Editing that file did not work, but I was able to write a quick script that
ran that last line and then ran GNURadio.

Thanks!


On Thu, Nov 21, 2013 at 5:51 PM, Ian Buckley <i...@ionconcepts.com> wrote:

> Paul, I read that as lack of available shared memory. I'm curious what
> result you get if you run the following at the command line:
> sysctl kernel.shmmax
>
> Not sure how you installed gnu radio, but if you used Marcus's
> build_gnuradio script then the following changes should have been made in
> /etc/sysctl.conf:
>
> # Updates for Gnu Radio
> net.core.rmem_max = 1000000
> net.core.wmem_max = 1000000
> kernel.shmmax = 2147483648
>
> These would be considered good starting values for general GNUradio with a
> USRP work.
>
> You can experiment at the command line to see if it solves your issue with:
>
> sudo sysctl -w kernel.shmmax=2147483648
>
>
> -Ian
>
>
>
> On Nov 21, 2013, at 3:17 PM, Paul B. Huter <paul.b.hu...@gmail.com> wrote:
>
> I am trying to play back my recorded data and I get the following:
>
> 3 instances of vmcircbuf_sysv_shm: shmget(1): Invalid argument
>
> allocate_buffer: failed to allocate buffer size of 25784 KB
>
> Those four lines are repeated, then
>
> terminate called after throwing an instance of 'std::bad_alloc'
> what(): std::bad_aloc
>
> My flow is a file source to a throttle to a frequency xlating fir filter
> to a wx gui fft sink. Sample rate is 50M.
>
> Any ideas?
>
> Paul B. Huter
> _______________________________________________
>
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> Discuss-gnuradio@gnu.org
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>
>
>
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