[Bug 85303] No warning before reboot, when harddrive full

[Sokraates]

Public bug reported:

Kubuntu 6.10, new installation, no upgrade, KDE 3.5.6 installed.

During a session my /home-partition became full or almost full. There
was no warning.

After a reboot KDM started, but I couldn't log in. I would always be
thrown back to KDM without any explanation. After a lot of work I
figured out, that the /home-partition was full. Starting the desktop
from the terminal finally showed a popup, telling me. I had to restart
the desktop again to read the message, because the popup was quickly
covered by the splashscreen, which then simply hung.

It may be, that the /home-partition was not yet full when I rebooted and
that starting of the desktop finally filled it. The problem is, that
there was no warning before reboot and the popup didn't appear when I
tried to login from KDM.

So either the reporting of a 9x%-full partition is broken or it is missing. The correct solution should be to 
1) check the partitions and report, as soon as they become 95% full or more
2) tell the user, that he runs the risk of no longer being able to login
3) modify KDM to show why the login failed or have a dialog-box appear instead of going back to KDM

Of course we don't want 3) to happen, since novice users will have a
hard time deleting stuff from the terminal.

** Affects: kdebase (Ubuntu)
     Importance: High
         Status: Confirmed

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No warning before reboot, when harddrive full
https://launchpad.net/bugs/85303