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
On 11/21/2013 06:17 PM, Paul B. Huter 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
What architecture are you running on?
Philip
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
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!