>>> On Tue, Aug 15, 2017 at 7:12 PM, Paulo Dias <paulo.miguel.dias@xxxxxxxxx> wrote: Device Model: Samsung SSD 850 EVO M.2 500GB Serial Number: S33DNX0H812686V LU WWN Device Id: 5 002538 d4130d027 Firmware Version: EMT21B6Q >>> Unfortunately no firmware updates listed with Samsung for this model. It's worth filing a bug report with them, and then try not using either fstrim or discard for a while and see if the problem reoccurs. If not, then that suggests trim bug in the firmware. If it does still occur it could just be defective hardware. Does smartctl -x reveal any issues? -- Chris Murphy -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
