OOM because chunks get buffered indefinitely

[entropia1]

I have snapclient running on Linux, connected to a USB audio device. Whenever I turn off the audio device, it gets disconnected entirely, so ALSA doesn‘t know about it anymore. The first thing you notice is a whole lot of error messages like the following:

[Error] (Alsa) Exception in initAlsa: Can't open front:CARD=Device,DEV=0, error: No such device

The bigger problem, though, is that snapclient continues to buffer audio chunks, but never gets to use any of them, so the system quickly runs out of memory.

[badaix]

Actually, snapclient discards chunks older than 5 seconds. Does it really run out of memory on your system?

[entropia1]

I logged the stream_‘s chunks_.size() right where the above error gets logged and it kept increasing. It gets reset whenever I reconnect the USB device and playback resumes.