WARNING: SoapySDR::Device::readStream timeout!

[alexFab]

Describe the bug
waterfall in web-gui stops.

SDR-Hardware
USRP B210

To Reproduce
It happens after 10 - 60 min. At a sample rate of 4Msps and much earlier using 8Msps .

Installation method

• i7, 16GB ram
• Ubuntu 19.10
• everything freshly complied from Source.
  • https://github.com/pothosware/SoapySDR
  • https://github.com/pothosware/SoapyUHD
  • https://github.com/jketterl/owrx_connector

Versions
latest master branch

Log messages
WARNING: Soapy overflow
WARNING: SoapySDR::Device::readStream timeout!
WARNING: SoapySDR::Device::readStream timeout!
WARNING: SoapySDR::Device::readStream timeout!
WARNING: SoapySDR::Device::readStream timeout!
WARNING: SoapySDR::Device::readStream timeout!
WARNING: SoapySDR::Device::readStream timeout!
WARNING: SoapySDR::Device::readStream timeout!
WARNING: SoapySDR::Device::readStream timeout!

Additional context
I'm not sure where the error is coming from. SoapySDR? SoapyUHD? owrx_connector? openwebrx? Or just some miss configuration?

thx a lot!

[jketterl]

That's an error reported by the SoapySDR API, nothing OpenWebRX can handle. Please contact the developers of the SoapyUHD module.

[n1zzo]

Hi @jketterl,
sorry for bringing this up again, but I believe that although the timeout is caused by the soapy library,
openwebrx is currently unable to recover after such an error.
Even in my issue: #219 , restarting soapyremote has no effect, and waterfall resumes only when openwebrx is restarted.
I believe that the issue should be solved by both sides, investigating the timeout cause, but also properly recovering from them on the openwebrx side.

[jketterl]

Funny story, but the fact that the waterfall just stops without the device going into the "failed" state is because that already is a workaround that allows airspyhf devices to recover. They run into timeouts whenever certain parameters are changes. If that workaround wasn't in place, they would fail on profile switches.

Other than that, OpenWebRX is currently not designed to recover any device after a critical failure.