USRP2 problem about shinysdr HOT 3 CLOSED

Note that 1190276 KiB is 1.1 GiB. So it's probably failing due to multiple allocations of that size, and even if the shared memory limit were big enough, you wouldn't want to actually operate under that condition. I'm going to guess that the OsmoSDR driver is defaulting to a very large sample rate and at least one of ShinySDR's buffers is scaling with the sample rate (shinysdr.top.MaxProbe is one I know does).

If you haven't already, I recommend setting a very low sample rate in your config file — say, 2 MS/s, or whatever is the lower limit for your USRP — and see if that works, then increase it.

config.devices.add(u'usrp', OsmoSDRSource('uhd', sample_rate=2000000))

Let me know what happens, and if the sample rate is clearly the problem, then I should start trying to diagnose what parts of ShinySDR are using too large buffers.

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Changed MaxProbe to use a power-of-2 size in commit d3a6c7b.

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Nothing heard recently, and I expect the MaxProbe change fixed/improved this.

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