CRC errors and DMA

Lucas Correia Villa Real lucasvr at gobolinux.org
Fri Aug 13 17:55:16 EDT 2004


Hi,

What happens when the processor tryies to read data from memory while the bus 
is being used for DMA transfers by another device? Is it possible that this 
kind of situation turns into CRC errors when trying to read data from a flash 
device (JFFS2)?

Given that this problem can happen, is there a way to make JFFS2, or the MTD 
subsystem to try to execute the operation again?

Any suggestion is very welcome.

Thanks in advance,
Lucas




More information about the linux-mtd mailing list