Audacious - OLD, PLEASE USE GITHUB DISCUSSIONS/ISSUES

I am using Ubuntu 10.04 Lucid and I build audacious thanks to the tarball on the website.

Out of curiosity, is there a reason you are using the ALSA output plugin to access PulseAudio via its ALSA emulation layer, rather than using the native PulseAudio output plugin?

Thanks for the reply. The only reason I used ALSA rather than pulseaudio output plugin is that it consumes less CPU. I tried using pulseaudio, and the error occurs less often, but I got a different stack after a while :

======= Backtrace: =========
/lib/tls/i686/cmov/libc.so.6(+0x6b591)[0x2ec591]
/lib/tls/i686/cmov/libc.so.6(+0x6cde8)[0x2edde8]
/lib/tls/i686/cmov/libc.so.6(cfree+0x6d)[0x2f0ecd]
/usr/lib/libX11.so.6(XFree+0x1d)[0x51845d]
/usr/lib/libpulsecommon-0.9.21.so(pa_x11_get_prop+0xae)[0xb4648e]
/usr/lib/libpulse.so.0(+0x381a9)[0x7fb1a9]
/usr/lib/libpulse.so.0(pa_context_new_with_proplist+0x19b)[0x7d0a2b]
/usr/lib/libpulse.so.0(pa_context_new+0x2c)[0x7d0b3c]
/usr/local/lib/audacious/Output/pulse_audio.so(+0x2e2f)[0x6e1e2f]
audacious[0x805a28f]
/usr/local/lib/audacious/Input/madplug.so(+0x2438)[0x807438]
audacious[0x805b822]
/lib/tls/i686/cmov/libpthread.so.0(+0x596e)[0x9f496e]
/lib/tls/i686/cmov/libc.so.6(clone+0x5e)[0x34ea4e]

Is there any workaround to avoid this ?

Okay, another X11-related crash within pa_context_new(). I searched Google a bit last night, and I think the problem here is that Xlib is not thread-safe. Hence, its use within pa_context_new() (or within an output plugin, period) is dangerous. So this is a problem that needs to be fixed either in PulseAudio (stop using Xlib) or X11 (make Xlib thread-safe). For a workaround, I can't think of much at the moment ... uninstall PulseAudio?

Found this: http://pulseaudio.org/ticket/799

What version of PulseAudio do you have? EDIT: Looked at your backtrace again, you have 0.9.21. Upgrade PulseAudio to 0.9.22 or newer. Closing.

I have 0.9.21 indeed. I will try to upgrade it. Thanks for your support.

Hello,

I uninstalled pulseaudio and chose Alsa as output. I get the same error, here is the backtrace :

======= Backtrace: =========
/lib/tls/i686/cmov/libc.so.6(+0x6b591)[0x782591]
/lib/tls/i686/cmov/libc.so.6(+0x6e395)[0x785395]
/lib/tls/i686/cmov/libc.so.6(__libc_calloc+0xab)[0x78670b]
/usr/lib/libasound.so.2(snd_config_update_r+0x477)[0x137ca17]
/usr/lib/libasound.so.2(snd_config_update+0x48)[0x137cdc8]
/usr/lib/libasound.so.2(snd_pcm_open+0x39)[0x13a3bc9]
/usr/local/lib/audacious/Output/alsa.so(alsa_open_audio+0xd9)[0xe65e79]
audacious[0x805a28f]
/usr/local/lib/audacious/Input/madplug.so(+0x2438)[0x5c3438]
audacious[0x805b822]
/lib/tls/i686/cmov/libpthread.so.0(+0x596e)[0xa6596e]
/lib/tls/i686/cmov/libc.so.6(clone+0x5e)[0x7e4a4e]

Then, still with pulseaudio uninstalled, I tried selecting "No Input" as output. I get the backtrace:

• glibc detected * audacious: free(): invalid next size (normal): 0xb4cbf148 * ======= Backtrace: =========
  /lib/tls/i686/cmov/libc.so.6(+0x6b591)[0x25f3591]
  /lib/tls/i686/cmov/libc.so.6(+0x6cde8)[0x25f4de8]
  /lib/tls/i686/cmov/libc.so.6(cfree+0x6d)[0x25f7ecd]
  /lib/libglib-2.0.so.0(g_free+0x36)[0x838fc6]
  audacious[0x805960b]
  audacious[0x8059cbb]
  /usr/local/lib/audacious/Input/madplug.so(+0x274f)[0x6ce74f]
  audacious[0x805b822]
  /lib/tls/i686/cmov/libpthread.so.0(+0x596e)[0x2b296e]
  /lib/tls/i686/cmov/libc.so.6(clone+0x5e)[0x2655a4e]

These crashes still happen randomly (every 3-4 songs).
Is this really a pulseaudio-related issue?

Please note that after falling back to audacious 2.5.3, the problem does not occur anymore.

Different backtraces = different problems. Open a new bug report, don't confuse things by commenting on an old one.