Target and prevblockhash need to be reversed from GBT variables.
diff --git a/cgminer.c b/cgminer.c
index fc501fe..ef23e63 100644
--- a/cgminer.c
+++ b/cgminer.c
@@ -1468,17 +1468,19 @@ static void calc_diff(struct work *work, int known);
static void gen_gbt_work(struct pool *pool, struct work *work)
{
- unsigned char *merkleroot;
+ unsigned char *merkleroot, hash_swap[32];
char *cbhex;
mutex_lock(&pool->gbt_lock);
__build_gbt_coinbase(pool);
merkleroot = __gbt_merkleroot(pool);
memcpy(work->data, &pool->gbt_version, 4);
- hex2bin(work->data + 4, pool->previousblockhash, 32);
+ hex2bin(hash_swap, pool->previousblockhash, 32);
+ swap256(work->data + 4, hash_swap);
memcpy(work->data + 4 + 32 + 32, &pool->curtime, 4);
hex2bin(work->data + 4 + 32 + 32 + 4, pool->gbt_bits, 4);
- hex2bin(work->target, pool->gbt_target, 32);
+ hex2bin(hash_swap, pool->gbt_target, 32);
+ swap256(work->target, hash_swap);
cbhex = bin2hex(pool->gbt_coinbase, pool->coinbase_len);
sprintf(work->gbt_coinbase, "%s", cbhex);
free(cbhex);