Comment 6 for bug 1060296

The mountall output here looks perfectly normal:

mount /sys/fs/fuse/connections [320] exited normally
[...]

mount /sys/kernel/debug [341] exited normally
[...]
mount /sys/kernel/security [344] exited normally
[...]
mount /run/lock [345] exited normally
[...]
mount /run/shm [346] exited normally
[...]
mount /run/user [347] exited normally
[...]
mounting event handled for /
remounting /
mount / [348] exited normally
[...]
mount /proc [350] exited normally
mount /sys [351] exited normally
mount /sys/fs/fuse/connections [352] exited normally
mount /dev [353] exited normally
mount /dev/pts [354] exited normally
mount /run [355] exited normally

Each of those repeated 'mount' commands following the remount of / is there to update /etc/mtab with mount -f. Are you sure nothing else on the system is editing the mtab?