Re: [Ekiga-devel-list] Crash in opal-gmconf-bridge.cpp

[Matthias Schneider <matthias schneider TU-Ilmenau DE>]

Quoting Julien Puydt <jpuydt free fr>:

> Hi,
>
> again, there is a problem with the bridge : it gets something from
> gmconf, doesn't check before use, and triggers a floating point exception.
>
> I'm not sure whether the issue is in ekiga or in opal though :
> 0x08132c71 in GMManager::set_video_options (this=0x8303238,
>      options= 0xbfba9fec) at /usr/include/opal/opal/mediafmt.h:877
> 877	    ) { PWaitAndSignal m(_mutex); MakeUnique(); return m_info !=
> NULL && m_info->SetOptionInteger(name, value); }
> (gdb) bt
> #0  0x08132c71 in GMManager::set_video_options (this=0x8303238,
>      options= 0xbfba9fec) at /usr/include/opal/opal/mediafmt.h:877
> #1  0x0814d3d8 in Opal::ConfBridge::on_property_changed (this=0x8319728,
>      key= 0xbfbaa084, entry=0x8290e60) at
> endpoints/opal-gmconf-bridge.cpp:127
>
> The lines 126 and 127 of the bridge read like :
>      options.maximum_frame_rate = gm_conf_entry_get_int (entry);
>      manager.set_video_options (options);
> if for some reason zero is returned, then we have a crash.
>
> Snark

Sorry Snark,
this is my fault, I renamed that setting yesterday assuming its only used by the
 vidinput-gmconf-bridge, where correct checks preventing your issue are being
done. I can offer to fix it tonight, or you can simply copy and paste the
section where its being read in the vidinput-gmconf-bridge to the opal bridge.

Matthias



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