John Bratteli wrote: > I brought this up some time ago, but no one was able > to help me. I have a little more information now, so > maybe we can make progress. > > In the application we are working on, we would like to > perform continuous split-second captures from the USRP > over days at a time. Unfortunately, it hangs after an > indeterminate amount of time. The power of the > computer running the program seems to have some > bearing on the time before crash, but it is still > pretty random. We have run times from 2min to 23hrs. > I had a similar problem and it was really nasty to figure out, as far as I remember it turns out it was due to memory fragmentation in the Kernel USB buffer causing the USB bus to be starved of data. I think it was Johnathan and Eric that tracked it down so they might have more information.
Possibly more importantly the fix was to change the usrp.source to include fusb_block_size=4096 and fusb_nblock=16. Hope that helps. Toby _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
