Re: 2.5.64-mm6

[Andrew Morton]

Helge Hafting <[e-mail]> wrote:
>
> Andrew Morton wrote:
> >   This might cause weird thing to happen, especially on small-memory machines.
> 
> Weird things happened.
> mm1 (and mm2 on smp) have been running very fine for me. So I decided to 
> try mm6 on UP.  The machine have 512M, and uses soft raid-1 on /  The
> rest is plain ide disk partitions, all using ext2.
> 
> It booted fine.
> I fired up openoffice, a 2x-3x speedup ought to be noticeable.
> It didn't start, but got stuck with the annoying on-top-of-everything 
> splash screen showing.  ps aux showed lpd in D state - perhaps
> oo queries lpd.  I also tried mozilla, and it got stuck in D state too.
> Openoffice was only in sleep so I killed it.  Mozilla was unkillable
> as expected from the D state.

The elevator bug.  I'll make deadline the deefault until we get this sorted.
Booting with "elevator=deadline" should be OK.