Errors can occur during DMA handling.
If READER.PTR or WRITER.PTR is not pointing to a valid memory region, an EasyDMA transfer could HardFault or cause RAM corruption. See Memory for more information about the different memory regions.
An EasyDMA channel is an AHB bus Manager. If several AHB Managers try to access the same AHB Subordinate at the same time, AHB bus congestion can occur. Depending on the peripheral, the peripheral could either stall and wait for access to be granted, or lose data.