This a duplicated bug from https://bugs.launchpad.net/ubuntu/+source/linux/+bug/204996.
The problem begin in the linux version 2.6.22 and is fixed in the 2.6.25
This a duplicated bug from https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/204996.
The problem begin in the linux version 2.6.22 and is fixed in the 2.6.25