/boot keeps losing inodes after each reboot and df wrongly shows 100% used on /boot

Issue

• /boot keeps losing inodes after each reboot, the number of inodes reduces from default 524288 to 512.

# df -i /boot
Filesystem     Inodes IUsed IFree IUse% Mounted on
/dev/sda1         512   325   187   64% /boot

• df wrongly reports /boot is 100% used, but du only reports around 100MB used on /boot.

# df -h | egrep 'boot|Use'
Filesystem                        Size  Used  Avail Use% Mounted on
/dev/sda1                         1014M 1014M     0 100% /boot

# du -sxkh /boot
112M    /boot