Libsoup Assertion

[Henry Högelow <h hoegelow raumfeld com>]

Hi,

I am Henry, working as Software Developer for Raumfeld (www.raumfeld.com).  
We are developing a multi room audio solution.

Currently, users tell us that audio streams are suddenly stopping and the  
system became less stable in general. We could see that all the users  
reporting such problems had the same critical libsoup message in their  
logs:

soup_message_queue_destroy: assertion `queue->head == NULL' failed

I found out, that the problem arises in soup_session_abort. The method  
tries to flush the message queue by canceling each of the pending  
messages. Obviously the developer assumed, that canceling a message will  
indirectly remove it from the queue.  This is not always true. I could  
nail down a reproduction scenario to this command line call:

gst-launch-0.10 souphttpsrc location="http://www.google.com/"; ! fakesink

It doesn't matter there is no audio stream at the given location. The  
assertion is triggered when the gstreamer gives up the attempt to play the  
stream and destroys the SoupSession.

I am not sure, the assertion and our problems are related, but at least an  
assertion is normally a good start point to find out.

Best, Henry


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