I also see this issue with the following drive, nvme1 on my system: Model Number: Samsung SSD 970 EVO Plus 1TB Firmware Version: 2B2QEXM7 PCI Vendor/Subsystem ID: 0x144d
This has been going on for months and until recently the output of `smartctl -l error /dev/nvme1` showed === START OF SMART DATA SECTION === Error Information (NVMe Log 0x01, 16 of 64 entries) No Errors Logged However now it shows === START OF SMART DATA SECTION === Error Information (NVMe Log 0x01, 16 of 64 entries) Num ErrCount SQId CmdId Status PELoc LBA NSID VS 0 3401 0 0x0006 0x4004 - 0 0 - `nvme smart-log /dev/nvme1` shows ................. Entry[ 0] ................. error_count : 3401 sqid : 0 cmdid : 0x6 status_field : 0x4004(INVALID_FIELD: A reserved coded value or an unsupported value in a defined field) parm_err_loc : 0xffff lba : 0 nsid : 0 vs : 0 trtype : The transport type is not indicated or the error is not transport related. cs : 0 trtype_spec_info: 0 ................. The other entries are not populated, they all have status_field : 0(SUCCESS: The command completed successfully) The same system also has another drive, /dev/nvme0: Model Number: Samsung SSD 980 PRO 1TB Firmware Version: 2B2QGXA7 PCI Vendor/Subsystem ID: 0x144d That drive does not show this problem, `smartctl -A /dev/nvme0` remains at Error Information Log Entries: 0 In my case this is a dual boot system; nvme1 is used for Windows 10 and rarely mounted in Linux. However in the past I was also using nvme1 for my linux root partition and the error count was also increasing. Like others have said, the error count on nvme1 seems to increase after reboots though not systematically. I have edited /etc/smartmontools/run.d/10mail to filter out the messages about nvme1 error log entries.
