On Apr 18, 2020, at 03:25, Chaitanya Kulkarni Chaitanya.Kulkarni@wdc.com wrote:
On 04/17/2020 01:37 AM, Kai-Heng Feng wrote:
After commit 6e02318eaea5 ("nvme: add support for the Write Zeroes command"), SK hynix SC300 becomes very slow with the following error message: [ 224.567695] blk_update_request: operation not supported error, dev nvme1n1, sector 499384320 op 0x9:(WRITE_ZEROES) flags 0x1000000 phys_seg 0 prio class 0]
Use quirk NVME_QUIRK_DEALLOCATE_ZEROES to workaround this issue.
Can you share nvme id-ctrl -H /dev/nvme0 | grep oncs -A 8 output?
$ sudo nvme id-ctrl -H /dev/nvme0 | grep oncs -A 8 oncs : 0x1f [7:7] : 0 Verify Not Supported [6:6] : 0 Timestamp Not Supported [5:5] : 0 Reservations Not Supported [4:4] : 0x1 Save and Select Supported [3:3] : 0x1 Write Zeroes Supported [2:2] : 0x1 Data Set Management Supported [1:1] : 0x1 Write Uncorrectable Supported [0:0] : 0x1 Compare Supported