in cooker
cat /etc/cron.d/kmod
# modprobe -r is a two-hand sweep module cleaner
*/10 * * * * root /sbin/modprobe -rs
On Saturday 08 September 2001 07:43 pm, you wrote:
> Hello,
>
> If you run Cooker, and use NVidia's driver, then you may read the
> following. I have experienced a bug related to module NVdriver in
> Mandrake 8.0 and I would like to know whether this bug could still
> happen in Cooker or not.
>
> *Abstract* : The problem is that I tried a game called "Cannon Smash"
> this afternoon, and it suddenly freezed my X server. Thanks to Guillaume
> (gc), I checked the log and found that in /etc/cron.d/kmod, there's a
> script that runs "rmmod -as" every 10 minutes. That command is here to
> unload all unused kernel modules if they have the attribute "autoclean"
> set (which is shown in "lsmod"). Unfortunately, when playing "Cannon
> Smash", X freezed on my machine after a few minutes of a fantastic match
> (cough). So, what I think has happened is that "rmmod -as" unloaded
> NVdriver module *even though* it was still being used. Which freezes X
> instantly.
>
> If you want to help me to know if this bug is reproduceable on other
> machines, please do the following steps:
>
> *Testcase*
>
> 1 - please reboot your PC (for safety)
>
> 2 - switch to runlevel 5 if not already
>
> 3 - check that /etc/cron.d/kmod contains the line:
> */10 * * * * root /sbin/rmmod -as
>
> 4 - launch Cannon Smash as a simple user, with defaults options
>
> 5 - play a few matches (you should use the *right* mouse button
> otherwise you will feel very bad). Then, one of the following will happen:
>
> 6a - suddenly X freezes (after a somewhat long period, many minutes), do
> not swear, and do the following : press "SysRq K", which should restart
> KDM (SysRq is "Alt PrintScreen" on my computer). If not, then try to do
> "SysRq S" which will sync your disk. Hopefully, a hard reboot won't
> screw up your partition (don't quote me on that).
>
> 6b - nothing happens, you can play the game for hours.
>
> 7 - In both situations, please send me a mail, that's interesting.
>
> Thanks for your help.
>
> Grégoire
>
> PS : if you see the bug, comment out the line in "kmod" file and you
> should be safe from this freeze. Try it out and see, it works for me.
