On 11/25/21 2:05 PM, Kenneth R. Crudup wrote: > > On Tue, 23 Nov 2021, Jens Axboe wrote: > >> It looks like some missed accounting. You can just disable wbt for now, would >> be a useful data point to see if that fixes it. Just do: > >> echo 0 > /sys/block/nvme0n1/queue/wbt_lat_usec > >> and that will disable writeback throttling on that device. > > It's been about 48 hours and haven't seen the issue since doing this. Great, thanks for verifying. From your report 5.16-rc2 has the issue, is 5.15 fine? -- Jens Axboe
