20587 segmentation fault (core dumped) friture #410

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1. Mistera91 commented on Mar 30, 2026

   

   Mistera91

   on Mar 30, 2026

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   I tried to trace this for a bit.

   My findings :
   The segfault occurs line 688 of sounddevice.py, if it was an Exception instead of a segfault, the traceback would look like this :

   Traceback (most recent call last):
     File "/friture/friture/audiobackend.py", line 101, in __init__
       (self.stream, self.ringBuffer, self.action, self.nchannels_max) = self.open_stream(device)
                                                                         ~~~~~~~~~~~~~~~~^^^^^^^^
     File "/friture/friture/audiobackend.py", line 321, in open_stream
       self.log_supported_input_formats(device)
       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^
     File "/friture/friture/audiobackend.py", line 361, in log_supported_input_formats
       sounddevice.check_input_settings(
       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
           device=device['index'],
           ^^^^^^^^^^^^^^^^^^^^^^^
       ...<2 lines>...
           extra_settings=None,
           ^^^^^^^^^^^^^^^^^^^^
           samplerate=samplerate)
           ^^^^^^^^^^^^^^^^^^^^^^
     File "/lib/python3.14/site-packages/sounddevice.py", line 688, in check_input_settings
       _check(_lib.Pa_IsFormatSupported(parameters, _ffi.NULL, samplerate))
              ~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   

   Note that the call to _check is never made : what fails is the call to _lib.Pa_IsFormatSupported.

   The content of parameters (<cdata 'struct PaStreamParameters *' owning 32 bytes>) :

   parameters {
       channelCount: 2,
       device: 18,
       hostApiSpecificStreamInfo: <cdata 'void *' NULL>,
       sampleFormat: 1,
       suggestedLatency: 0.0
   }
   

   (and samplerate is set to 22050).

   I may have more time in the future but for now I’ll stop there, hope it can help anyone.
2. Ja4e commented on Mar 30, 2026

   

   Ja4e

   on Mar 30, 2026

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   to be honest commenting out one line does fix for me

   👍React with 👍1Reacted by Misutera