Jörg-Volker Peetz wrote on 05/20/2015 10:48: <snip> > after a few days of running the patch, I seem to have again two files with > changed mtime without touching them (only reading by rsync). > <snip> I can affirm this error, but am not sure where to hunt. I'm using several USB drives in a cycle for backup. I have a directory with a file originally older than a few years. Mount options are $ grep sda /proc/mounts /dev/sda2 /home ext4 rw,lazytime,relatime,nobarrier,errors=remount-ro 0 0 (using lazytime with relatime). As reported, while I started using lazytime, this file's mtime got changed. I reset the mtime with the "touch -r <intact_copy> <file>" command. After a backup to one of the USB drives with something like $ rsync -acv --exclude-from=<file> --delete-excluded <SRC> <DEST_ON_USB_DRIVE> the namely file had its mtime changed on the *source* device (the USB drive has an ext4 fs mounted without the lazytime option). I reset that again on the source SSD using "touch". Another file in the same was also modified. Next backup on another USB drive, same thing. I took a look into the file list on the backup medium before the backup. There the file also had a different mtime, but not the same mtime the file got after the backup. I'm confused. Any idea? -- Regards, Jörg. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html