Hi all, I've a small box, with Fedora 31 up-to-date.
The system has LUKS + LVM + f2fs. Since kernel 5.3.16-300.fc31.x86_64 the fstrim.service, triggered by the systemd service fstrim.timer or from command line, does return an error: Starting Discard unused blocks on filesystems from /etc/fstab... fstrim: /home: FITRIM ioctl failed: Read-only file system fstrim: /: FITRIM ioctl failed: Read-only file system fstrim.service: Main process exited, code=exited, status=32/n/a fstrim.service: Failed with result 'exit-code'. Failed to start Discard unused blocks on filesystems from /etc/fstab. Note the following: 1) Both /home and / are rw 2) LUKS and LVM allow discard to the underlying device 3) An other PC, with same layout, but ext4, does work as expected 4) kernel 5.4.7-200.fc31.x86_64 (latest for f31) has same result 5) fstrim -vA or -va does not return an error, exit code is 0, but it always says 0 (zero) bytes are trimmed: /home: 0 B (0 bytes) trimmed on /dev/mapper/fedora--server-home /: 0 B (0 bytes) trimmed on /dev/mapper/fedora--server-root 6) mount shows that the f2fs mounts have "discard" flag So, I suspect there is something with f2fs which somehow confuses the trimming process. I had a quick search, but I could not find any other similar report, except one about systemd, but that does not seem related. Any idea? Suggestions? Debugging possibilities? Thanks a lot in advance, bye, -- piergiorgio _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
