exFat, 128GB, f_mkfs->F_INT_ERR

[ErickWangZY]

Test Enviroment:

128GB TF card; freespace: 20GB; 1000 files in root directory, 100MB for each file; exFat

Issue:

1. try to create a new directory with f_mkfs, and it returns FR_INT_ERR
2. tracked the code, it has been found that the FR_INT_ERR was from the function load_xdir(). And according to the code comments, there is an invalid order which result in the FR_INT_ERR.

Question:

Is there some parameter must be configured, or some parameter must be given a specific value?