rx_fm with airspy won't terminate

[Nikotine1]

Hi,

I'm using rx_fm with an Airspy Mini.
The problem is that it won't terminate, the process stays there, using 100% of a processor.
I never get the prompt back, it just sits at Signal caught, exiting.

pi@rpi-rtl-sdr:~ $ /usr/bin/timeout 10 /home/pi/sdr/rx_tools/rx_fm -d driver=airspy -f 137.1M -s 60k -g 30 -p -2 -E deemp -F 9 - | /usr/bin/sox -t raw -e signed-integer -b 16 -r 60k -c 1 - rx_fm.wav rate 11025
Using device Airspy: serial=b5ac67dc2b128913
Found 1 channel(s) :
Channel 0 :
  Found 1 antenna(s): RX
  Found 3 gain(s): LNA MIX VGA
  Found 1 frequencies: RF
  Found 2 sample rates: 6000000 3000000
  Found 0 bandwidths:
[INFO] Using format CS16.
Tuner gain set to 30.00 dB.
Tuner error set to -2 ppm.
Bandwidth set to automatic resulted in 0 Hz.
Tuned to 137580000 Hz.
Oversampling input by: 32x.
Oversampling output by: 1x.
Buffer size: 4.27ms
Sampling at 1920000 S/s.
Output at 60000 Hz.
Signal caught, exiting!

I eventually have to sigkill the process.

I should add that while the above example uses timeout to terminate after 10 seconds, the same happens if I just stop it with ctrl+c.

This doesn't happen with rx_fm and an RTL-SDR.

This is on a Raspberry Pi 3B, completely up to date.
Fresh install from source code of SoapySDR, its Airspy module and rx_tools.

[Nikotine1]

Reading the code, I realize this will probably be an issue with SoapySDR. I'll copy the question to their issue tracker later, and remove it here.

[Nikotine1]

Closing, as posted here.