(gdb) bt
#0 0x48ba7c41 in free () from /lib/tls/i686/cmov/libc.so.6
#1 0x48da0c2d in g_free () from /usr/lib/libglib-2.0.so.0
#2 0x0804aa9d in insert_context_header (fp=0x806b0c8, accessible=0x48c62038)
at appmap-gen.c:777
#3 0x0804abfe in create_appmap (fp=0x806b0c8, accessible=0x806b038,
application_name=0x804d008 "gaim") at appmap-gen.c:801
#4 0x0804adde in appmap_main (app_name=0x804d008 "gaim") at appmap-gen.c:875
#5 0x0804aeb3 in main (argc=2, argv=0x0) at appmap-gen.c:913