ureadahead debugfs eating disk space

[naiad]

Hi:

#uname -a
Linux box 2.6.32-21-generic-pae #32-Ubuntu SMP Fri Apr 16 09:39:35 UTC 2010 i686 GNU/Linux

#df

/dev/sda1 73744616 5696296 64302272 9% /
none 1004168 212 1003956 1% /dev
none 1008756 0 1008756 0% /dev/shm
none 1008756 324 1008432 1% /var/run
none 1008756 0 1008756 0% /var/lock
none 1008756 0 1008756 0% /lib/init/rw
none 73744616 5696296 64302272 9% /var/lib/ureadahead/debugfs

# ls -al /var/lib/ureadahead/
total 328
drwxr-xr-x 3 root root 4096 2010-07-28 09:39 .
drwxr-xr-x 47 root root 4096 2010-07-27 06:46 ..
drwxr-xr-x 2 root root 4096 2010-02-17 15:26 debugfs
-rw------- 1 root root 323272 2010-07-28 09:39 pack

# ls -al /var/lib/ureadahead/debugfs
total 8
drwxr-xr-x 2 root root 4096 2010-02-17 15:26 .
drwxr-xr-x 3 root root 4096 2010-07-28 09:39 ..


Althought /var/lib/ureadahead/debugfs is not mounted in any hard disk, it's a virtual drive, it's eating all disk space of / , and it's growing very fast.

When it reaches 100%, I can not do anything, since the / is full

What is that and how can I disable it ?

The only way to stop it is to reboot ! and then it's free again, but in about 2 hours is full again ...

I've been googling this, but I find no solution

Thank you

[JosePF]

Hello,
i can see that it is a bug in boot time: ureadahead & debugfs.
In principle this should only use the kernel at boot time and end after booting.
See man ureadahead
(and man debugfs)

Regards