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From: Daniel Phillips <>
To: Dave McCracken <>,
	"Gerold J. Wucherpfennig" <>,
Subject: Re: Page table sharing
Date: Tue, 1 Oct 2002 15:08:12 +0200	[thread overview]
Message-ID: <E17wMl3-0005tY-00@starship> (raw)
In-Reply-To: <>

On Wednesday 25 September 2002 20:40, Dave McCracken wrote:
> --On Wednesday, September 25, 2002 20:12:36 +0200 "Gerold J. Wucherpfennig"
> <> wrote:
> > What about page table sharing? Does anybody still care about this?
> > 
> > The patch from Daniel Phillips
> > (
> > is a few month old and I can't see any progress.
> > 
> > Sorry, I'm not a kernel expert, so I can't help.
> > But page table sharing is still listed as betaware at the
> > Linux Kernel 2.5 Status page (
> > and Page Table sharing isn't marked post Halloween.
> > 
> > Some comments from Daniel Phillips or Dave McCracken?
> I'm working on it.  I sent out a patch to the mm list a few weeks ago, but
> it didn't have the locking right.  I'm in the proces of finishing an
> improved version with new locking.  I'll send a snapshot of it out when I
> can make it stop oopsing :)

Hi Dave,

I'm not sure how relevant page table sharing has to the halloween deadline
since it's not a feature per se, just an optimization.   It has more to do
with getting numa ia32 boxes to survive, so it's an ideal out-of-tree patch.

Anyway, I feel your pain - debugging these deep VM hacks can get very weird.
I just got back home, I'll have a read through your latest.


  parent reply	other threads:[~2002-10-01 13:02 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-09-25 18:12 Gerold J. Wucherpfennig
2002-09-25 18:40 ` Dave McCracken
2002-09-26 18:20   ` Gerold J. Wucherpfennig
2002-10-01 13:08   ` Daniel Phillips [this message]
2002-10-01 16:06     ` Martin J. Bligh
2002-10-01 16:28       ` Daniel Phillips

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