altera DMA stuck in busy state

As an additional observation to the earlier post,

I have also observed that when the when the length(in bytes) is given as the exact same number of bursts(in words),

the length register decrements to 0 but the transactions continue to happen.

Example: If I have given the burst as 256 words(32 bit) and length as 1024(bytes) and then issue a go, the length is decremented to 0 but the number of transactions that occurred is incrementing continuously.

I could also see the data being written in the destination until the length goes to 0, and later overwritten by some junk values.