Bug: DMA Initialization Increments Refresh Counter for Certain Rows

[biecho]

While testing row initialization with DMA, I observed that the refresh counter unexpectedly increments for certain rows, even when refresh is explicitly disabled. This behavior affects approximately 5–10% of rows and results in increments varying between 1 and 5.

Steps to Reproduce:

1. Disable refresh.
2. Record the refresh counter.
3. Initialize a row using DMA.
4. Record the refresh counter again.

Observed Behavior:

For certain rows (around 5–10% of the tested rows), the DMA initialization step increments the refresh counter. The increment values vary between 1 and 5. The remaining rows show no increment in the refresh counter.

Expected Behavior:

The DMA initialization step should not influence the refresh counter, as refresh operations are disabled.