--- a/kernel/relay.c~kernel-relayc-drop-unneeded-initialization +++ a/kernel/relay.c @@ -1002,7 +1002,7 @@ static int relay_file_read_avail(struct size_t subbuf_size = buf->chan->subbuf_size; size_t n_subbufs = buf->chan->n_subbufs; size_t produced = buf->subbufs_produced; - size_t consumed = buf->subbufs_consumed; + size_t consumed; relay_file_read_consume(buf, 0, 0);