if (c != vh->crc32) {
log_err("crc32c: verify failed at %llu/%u\n",
io_u->offset + header_num * hdr->len, hdr->len);
log_err("crc32c: wanted %x, got %x\n", vh->crc32, c);
if (c != vh->crc32) {
log_err("crc32c: verify failed at %llu/%u\n",
io_u->offset + header_num * hdr->len, hdr->len);
log_err("crc32c: wanted %x, got %x\n", vh->crc32, c);