[ltp] hard disk spindown related lockups

[Justin Mason]

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sltp@rhythm.cx writes:
> 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?

To be honest, I ran into this pretty quickly after enabling laptop
mode so I have no idea how long it might last with it on ;)

- --j.
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