On Tue, Jan 17, 2017 at 03:37:03PM +0100, Jan Kara wrote: > Well, the situation with NVM is more like with DRAM AFAIU. It is quite > reliable but given the size the probability *some* cell has degraded is > quite high. And similar to DRAM you'll get MCE (Machine Check Exception) > when you try to read such cell. As Vishal wrote, the hardware does some > background scrubbing and relocates stuff early if needed but nothing is 100%. Based on publically available papers and little information leaks there is no persistent NVM that comes even close to the error rate for DRAM - they all appear to be magnitudes worse. -- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
