Comment 4 for bug 67453

This happens when the system does the fscking after mounting partitions, I mean that fsck that is always done. In my system there's no noticable inactivity before the switch.

My fstab is:
# /etc/fstab: static file system information.
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0

# /dev/sda3
UUID=6042b87d-09b3-488e-a4db-474d6dbb8572 / ext3 defaults,errors=remount-ro 0 1

# /dev/sda1
UUID=988456928456732C /media/sda1 ntfs defaults,user,noauto,umask=007,gid=46 0 1

# /dev/sda5
UUID=46D4-801B /media/sda5 vfat defaults,user,utf8,umask=007,gid=46 0 1

# /dev/sda2
UUID=5a60178e-801d-4bbc-aac2-cab8e9221f56 none swap sw 0 0

# cdrom
/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec 0 0