Hi, On Sat, Jul 20, 2019 at 09:41:24PM -0500, davidc502 wrote: > Hello, > > I've assembled a X570 board with a 1TB AORUS NVMe Gen4 SSD. > > When attempting to fstrim the NVMe, I receive the following error. > davidc502@Ryzen-3900x:~$ sudo fstrim -a -v > fstrim: /boot/efi: FITRIM ioctl failed: Input/output error > fstrim: /: FITRIM ioctl failed: Input/output error > > Anyhow, I have put some details below which might be helpful. Note that > this NVMe is supposed to be TRIM and SMART compliant. The SMART outputs are > available using the utility “nvme-cli”. > I am willing to provide whatever command outputs that are needed to help > solve this issue. > > OS= Ubuntu 18.4.2 LTS > Different Kernels I’ve tried = 5.1.16, 5.2 rc7, and 4.18 > fstrim version = fstrim from util-linux 2.31.1 > Firmware version for Aorus NVMe = EGFM11.0 > I saw discard timeout on HGST 1.6TB NVMe, not sure if yours is same with that one. Could you collect logs via the following steps? Suppose your nvme disk name is /dev/nvme0n1: 1) queue limits log: #(cd /sys/block/nvme0n1/queue && find . -type f -exec grep -aH . {} \;) 2) NVMe IO trace - enable nvme IO trace before running fstrim: #echo 1 > /sys/kernel/debug/tracing/events/nvme_setup_cmd/enable #echo 1 > /sys/kernel/debug/tracing/events/nvme_complete_rq/enable - run fstrim - after the fstrim failure is triggered, disable the nvme io trace & post the log: #echo 0 > /sys/kernel/debug/tracing/events/nvme_setup_cmd/enable #echo 0 > /sys/kernel/debug/tracing/events/nvme_complete_rq/enable #cp /sys/kernel/debug/tracing/trace /root/nvme_io_trace.log thanks, Ming