Comment 12 for bug 1539209

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David Henningsson (diwic) wrote : Re: pulseaudio crashed with SIGABRT in pa_alsa_path_set_volume()

Anyhow the first thing needed is probably an alsa-info: https://wiki.ubuntu.com/Audio/AlsaInfo
And if possible to reproduce while logging is on, this would be helpful too: https://wiki.ubuntu.com/PulseAudio/Log

Might not be enough to fix the bug, but should provide a few pointers w r t where to start looking..