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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - Pulseaudio daemon aborts when client tries to playback at less than 6Hz"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=68616">68616</a>
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>lennart@poettering.net
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>pulseaudio-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Pulseaudio daemon aborts when client tries to playback at less than 6Hz
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>pulseaudio-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>anssi@mageia.org
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>daemon
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>PulseAudio
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=84721" name="attach_84721" title="Daemon debug log of git master with "pacat --rate=5"">attachment 84721</a> <a href="attachment.cgi?id=84721&action=edit" title="Daemon debug log of git master with "pacat --rate=5"">[details]</a></span>
Daemon debug log of git master with "pacat --rate=5"

Pulseaudio daemon aborts when a client tries to play back audio at sample rate
range 1Hz..5Hz.

The following commandline triggers the issue on 4.0 and on git master:
$ echo foobar | pacat --rate=1

The error is:
E: [null-sink] sink-input.c: Assertion 'tchunk.length > 0' failed at
pulsecore/sink-input.c:933, function pa_sink_input_peek(). Aborting.

This happens on both null-sink and on alsa-sink.

Debug log is attached (null-sink case).</pre>
        </div>
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