[ltp] hard disk spindown related lockups

[linux-thinkpad@linux-thinkpad.org]

On Mon, Feb 28, 2005 at 03:48:29PM +0000, Justin Mason wrote:
> FWIW, I had the same problem -- Debian unstable, ext3, then Ubuntu Hoary,
> ext3.
> 
> The issue was laptop-mode, which I tried on Debian and now seems to be
> default on Hoary.  "cat /proc/sys/vm/laptop_mode" will immediately tell
> you if that's active (outputs a value != 0 if it is).
> 
> as far as I can see it's something to do with both laptop-mode and
> madwifi.  Once the madwifi drivers are loaded, this will happen.  I've
> managed to repro it on AC too, iirc.   Turning off laptop-mode (and
> uninstalling the tool outright!) has fixed the problem for me.

I can definitely say that the madwifi drivers alone don't cause the problem.
My thinkpad has the centrino wireless, so I don't use madwifi at all but I
still have the problem.

I'll try disabling laptop_mode. How has doing that affected your battery
runtime?