Re: gupnp_device_info_get_udn: assertion 'GUPNP_IS_DEVICE_INFO (info)' failed

[Jens Georg <mail jensge org>]

> I've written a program using libgupnp and libvlc to access a Ceton
> eth6 
> TV tuner. The user program has not been changed for months and has 
> worked well.
> I've suddenly started getting the following error:
>
> (CetonPlay:21673): GLib-GObject-WARNING **: invalid uninstantiatable 
> type '<unknown>' in cast to 'GUPnPDeviceInfo'

Do you remember from which version to which version you updated?
Package versions would be more helpful than so names, I'm afraid.

Smells a bit like memory corruption, the <unknown> looks like the
contents of the list are not what it expects.

Are you comfortable with using valgrind?

> ** (CetonPlay:21673): CRITICAL **: gupnp_device_info_get_udn:
> assertion 
> 'GUPNP_IS_DEVICE_INFO (info)' failed
> Segmentation fault (core dumped)
>
> These errors trace back to:
>
> resource_expire() at gssdp-resource-browser.c:662
> (a screenshot of the trace is attached)
>
> The obvious (to me) suspect is a change in a system library
> (libgssdp, 
> libgupnp, libgobject, ...) but I can find no sign that any of these
> has 
> been updated recently.
>
> I'm not sure how to go at this so any pointers appreciated.
>
> I am running Linux Mint 17 with the following gupnp libraries
> installed 
> from the Mint repository:
> libgssdp-1.0.a
> libgssdp-1.0.so
> libgssdp-1.0.so.3
> libgssdp-1.0.so.3.0.0
>
> libgupnp-1.0.a
> libgupnp-1.0.so
> libgupnp-1.0.so.4
> libgupnp-1.0.so.4.0.0
> libgupnp-av-1.0.a
> libgupnp-av-1.0.so
> libgupnp-av-1.0.so.2
> libgupnp-av-1.0.so.2.0.0
> libgupnp-dlna-2.0.so.3
> libgupnp-dlna-2.0.so.3.0.0
> libgupnp-dlna-gst-2.0.so.3
> libgupnp-dlna-gst-2.0.so.3.0.0
>
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