I get a lot of these:

==29264== Conditional jump or move depends on uninitialised value(s) ==29264== at 0x84335A5: (within /usr/lib/libjpeg.so.62.0.0) ==29264== by 0x8430FC9: (within /usr/lib/libjpeg.so.62.0.0) ==29264== by 0x842FEF5: (within /usr/lib/libjpeg.so.62.0.0) ==29264== by 0x842CDFE: jpeg_write_scanlines (in /usr/lib/libjpeg.so.62.0.0) ==29264== by 0x822015C: image_jpeg_encode (image_jpeg.c:912) ==29264== by 0x44B132: low_mega_apply (apply_low.h:225) ==29264== by 0x445B7A: eval_instruction (interpret_functions.h:2065) ==29264== by 0x44DDA8: catching_eval_instruction (interpret.c:2225) ==29264== by 0x440C37: eval_instruction (interpret_functions.h:1286) ==29264== by 0x44DD26: mega_apply (interpret.c:2195) ==29264== by 0x51D4FA: call_pike_initializers (object.c:333) ==29264== by 0x51D925: parent_clone_object (object.c:416)

but they don't seem to be harmful?