Dear Dr. Daigle,
If you remember I told you that I rewrote the transmission side of my
system
such that there is no usrp involved. But this system doesn’t work and it
shows an error that I can’t resolve. The error is as shown below,
gr_fir_fff: using SSE
gr_vmcircbuf_sysv_shm: shmget (0): No space left on device
gr_buffer::allocate_buffer: failed to allocate buffer of size 64 KB
terminate called after throwing an instance of ‘std::bad_alloc’
what(): std::bad_alloc
Aborted
Apparently, this is due to failure in allocation of enough memory. When
I
commented out the lines in the original transmit_path.py that involves
usrp
and replaced the usrp_sink with a file_sink I get the same error. Any
ideas?
I first tried to use your model of qa_test to write a transmitter but I
am
wasn’t sure about the way to pass multiple packets to the message_queue.
I
may need some help on this.
Thanks,
Ali