[Libvisual-devel] Re: free errors in libvisual.

[Duilio J. P. <dp...@fc...>]

> On quit running valgrind ./simplesdl:
> 
> 
> ==26715==
> ==26715== Invalid free() / delete / delete[]
> ==26715==    at 0x3C01F918: free (vg_replace_malloc.c:127)
> ==26715==    by 0x3C10B502: visual_list_free
> (in /usr/lib/libvisual.so.0.0.0)
> ==26715==    by 0x3C107D2C: visual_plugin_ref_list_destroy
> (in /usr/lib/libvisual.so.0.0.0)
> ==26715==    by 0x3C10C3A2: visual_quit (in /usr/lib/libvisual.so.0.0.0)
> ==26715==  Address 0x3CB57A34 is 0 bytes inside a block of size 12
> free'd
> ==26715==    at 0x3C01F918: free (vg_replace_malloc.c:127)
> ==26715==    by 0x3C10B502: visual_list_free
> (in /usr/lib/libvisual.so.0.0.0)
> ==26715==    by 0x3C10B5A7: visual_list_destroy
> (in /usr/lib/libvisual.so.0.0.0)
> ==26715==    by 0x3C107D22: visual_plugin_ref_list_destroy
> (in /usr/lib/libvisual.so.0.0.0)
> ==26715==
> ==26715== Jump to the invalid address stated on the next line
> ==26715==    at 0x0: ???
> ==26715==    by 0x3C10C3C0: visual_quit (in /usr/lib/libvisual.so.0.0.0)
> ==26715==    by 0x8049E87: main
> (in /usr/src/libvis-newcvs/libvisual/examples/simplesdl)
> ==26715==  Address 0x0 is not stack'd, malloc'd or free'd
> ==26715==
> ==26715== Process terminating with default action of signal 11
> (SIGSEGV): dumping core
> ==26715==  Access not within mapped region at address 0x0
> ==26715==    at 0x0: ???
> ==26715==    by 0x3C10C3C0: visual_quit (in /usr/lib/libvisual.so.0.0.0)
> ==26715==    by 0x8049E87: main
> (in /usr/src/libvis-newcvs/libvisual/examples/simplesdl)
> ==26715==
> 
> 
> 
> Maybe this also causes some xmms plugin borkage that we've been seeing,
> not sure tho...

That problem with visual_list_destroy() is exactly the same we have
in XMMS plugin, and that's the reason I will wait to catch the errors 
on plugin's quit until libvisual code revision has be done (after
0.1.6).


Duilio.