[LAD] Memory corruption&coredump on Exit in my first vala program spekle

Anybody have any ideas on http://code.google.com/p/spekle/wiki/EvidenceOfMemoryCorruptionOnExit (warning contains large images, http://spekle.googlecode.com/svn/wiki/evidence-of-memory-corruption-on-exit… for error text only). issue: http://code.google.com/p/spekle/issues/detail?id=1 Summary: after successfully writing a spectrogram image in my first Vala programming http://spekle.googlecode.com/ (a displayless-version of Alexander Kojevnikov's http://www.spek-project.org/ ) I get the following error, despite not explicitly calling free() out of my Vala code: Spekle: saving 'j_s_bach-d_minor_invention.ogg.png'... DONE! *** glibc detected *** spekle: free(): invalid pointer: 0x00007fa7e05ca010 *** ======= Backtrace: ========= /lib64/libc.so.6[0x3ac0874ac6] /usr/lib64/libpixman-1.so.0(pixman_image_unref+0x83)[0x3ac9e161b3] /usr/lib64/libcairo.so.2[0x359c016b85] /usr/lib64/libcairo.so.2(cairo_surface_finish+0x36)[0x359c02c9d6] /usr/lib64/libcairo.so.2(cairo_surface_destroy+0x55)[0x359c02ca45] spekle[0x406b1e] /lib64/libgobject-2.0.so.0(g_object_unref+0x15f)[0x3ac380da1f] spekle[0x407d3d] /lib64/libgobject-2.0.so.0(g_object_unref+0x15f)[0x3ac380da1f] spekle[0x403857] /lib64/libc.so.6(__libc_start_main+0xfd)[0x3ac081eb1d] spekle[0x403439] The errors seems to occur intermittently, and more often when using media that is ogg. Retrieving via HTTP seems to reduce the error potential, but it still happens that way too... The relevant libraries and compiler I'm using: vala-0.9.3-1.fc12.x86_64 vala-tools-0.9.3-1.fc12.x86_64 vala-devel-0.9.3-1.fc12.x86_64 libpng-devel-1.2.44-1.fc12.x86_64 libpng-1.2.44-1.fc12.x86_64 gtk2-devel-2.18.9-3.fc12.x86_64 gtk2-2.18.9-3.fc12.x86_64 ffmpeg-0.6-2.fc12.x86_64 ffmpeg-libs-0.6-2.fc12.x86_64 ffmpeg-devel-0.6-2.fc12.x86_64 See http://spekle.googlecode.com/svn/trunk/README for instructions on obtaining by 'svn' and building on Linux. Niels http://nielsmayer.com