Re: migration cache, updated

[Hirokazu Takahashi <taka@valinux.co.jp>]

Hi Ray,

> >>If I take out the migration cache patch, this "VM: killing ..." problem
> >>goes away.   So it has something to do specifically with the migration
> >>cache code.
> > 
> > 
> > I've never seen the message though the migration cache code may have
> > some bugs. May I ask you some questions about it?
> > 
> >  - Which version of kernel did you use for it?
> 
> 2.6.10.  I pulled enough of the mm fixes (2 patches) so that the base
> migration patch from the hotplug tree would work on top of 2.6.10.  AFAIK
> the same problem occurs on 2.6.11-mm2 which is where I started with the
> migration cache patch.  But I admit I haven't tested it there recently.

(snip)

> >  - Is it possible to make the same problem on my machine?
> 
> I think so.  I'd have to send you my system call code and test programs.
> Its not a lot of code on top of the existing page migration patch.

Ok, would you post the code on the list?
I'll take a look at it and run on my box.

> > And, would you please make your project proceed without the
> > migration cache code for a while?
> 
> I've already done that.  :-)

Thanks,
Hirokazu Takahashi.
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