#0  0x00007f6fffbb8b2c in ?? ()
No symbol table info available.
#1  0x00000000000000ea in ?? ()
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#2  0x00007f70018a500e in ev_document_misc_surface_rotate_and_scale () from /tmp/apport_sandbox_rJORCp/usr/lib/x86_64-linux-gnu/libatrildocument.so.3
No symbol table info available.
#3  0x00007f6ff9c65b05 in epub_document_thumbnails_get_thumbnail () from /tmp/apport_sandbox_rJORCp/usr/lib/x86_64-linux-gnu/atril/3/backends/libepubdocument.so
No symbol table info available.
#4  0x0000000000401b2a in atril_thumbnail_pngenc_get ()
No symbol table info available.
#5  0x000000000040177c in main ()
No symbol table info available.