Bug 74646 - segfault in pa_sink_input_new
Summary: segfault in pa_sink_input_new
Alias: None
Product: PulseAudio
Classification: Unclassified
Component: daemon (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: pulseaudio-bugs
QA Contact: pulseaudio-bugs
Depends on:
Reported: 2014-02-07 03:03 UTC by Sebastian Keller
Modified: 2014-02-14 14:10 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

backtrace (8.13 KB, text/plain)
2014-02-07 03:03 UTC, Sebastian Keller
Fix for the segfault (3.96 KB, patch)
2014-02-12 10:50 UTC, Tanu Kaskinen
Details | Splinter Review

Description Sebastian Keller 2014-02-07 03:03:08 UTC
Created attachment 93581 [details]

In Fedora 21 using pulseaudio 4.99.3 I'm getting a segfault of the pulseaudio daemon whenever I try to play something using gnome-music.

I'm attaching a backtrace of the problem.
Comment 1 Tanu Kaskinen 2014-02-12 09:35:36 UTC
Thanks for the report! The crash is easy enough to fix, but it looks like format negotiation with the default sink fails. The only situation where this should happen is when the client requests passthrough playback for some compressed format. What kind of file are you trying to play?

If the file that you're trying to play is just a regular mp3/vorbis/flac file, then there's some other bug in addition to the one that causes the crash. If I write a special debugging patch, will you be able to test it (build and install pulseaudio from source code)?
Comment 2 Tanu Kaskinen 2014-02-12 10:47:46 UTC
A fix for the crash has been sent to the mailing list: http://thread.gmane.org/gmane.comp.audio.pulseaudio.general/19697
Comment 3 Tanu Kaskinen 2014-02-12 10:50:29 UTC
Created attachment 93928 [details] [review]
Fix for the segfault

Here's the patch as an attachment too.
Comment 4 Tanu Kaskinen 2014-02-14 14:10:52 UTC
The fix is now in master: http://cgit.freedesktop.org/pulseaudio/pulseaudio/commit/?id=ee1a96499447d0bc3458ab5075d05dbefcee225c

About the suspected additional bug: this was sorted out in IRC, and it turned out that GStreamer's playbin tries to play mp3 in passthrough mode before falling back to PCM, so nothing abnormal was happening in PulseAudio (apart from the crash).

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