From: Kip Macy <kmacy@eventdriven.org>
To: Keir Fraser <Keir.Fraser@cl.cam.ac.uk>
Cc: Ian Pratt <Ian.Pratt@cl.cam.ac.uk>, xen-devel@lists.sourceforge.net
Subject: Re: Never mind Re: Re: Xen reboots when trying to start new domain
Date: Thu, 9 Sep 2004 20:09:43 -0700 (PDT) [thread overview]
Message-ID: <20040909200509.X56335@demos.bsdclusters.com> (raw)
In-Reply-To: <E1C5bX6-00021E-00@mta1.cl.cam.ac.uk>
>
> Note that we don't support direct writing to pde's (yet), only to leaf
> entries in the multi-level page table.
Ahh - then it wouldn't help with this particular problem. I'm getting
an error when I unpin a page as an L2 table and then immediately re-pin
it as an L1.
-Kip
>
> -- Keir
>
> > I'm hitting a bug in the pmap code when switching to multi-user mode. It
> > looks to me like a bug in Xen, but I don't know for sure yet. I'd like
> > to try turning on writable pagetables and use the stock i386 pmap.c code
> > to see how much mileage I get out of that. Is there any documentation on
> > the writable pagetable interfaces other than wading through the
> > changesets?
> >
> >
> > Thanks.
> >
> > -Kip
> >
> >
> >
> > On Fri, 10 Sep 2004, Keir Fraser wrote:
> >
> > > > I just burned an extra page so I'm not aliasing the page table - so now
> > > > it comes up.
> > > >
> > > >
> > > > -Kip
> > > >
> > >
> > > Excellent! I'd encourage you to continue to avoid the aliasing, as it
> > > may lead to performance degradation in the future. Once you're up can
> > > you kill the low mappings and free the extra page?
> > >
> > > -- Keir
> > >
> > >
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>
>
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next prev parent reply other threads:[~2004-09-10 3:09 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-01 2:50 Question about starting a domain Kathy Chen
2004-09-01 7:20 ` Steven Hand
2004-09-01 19:15 ` Kathy Chen
2004-09-01 19:51 ` Ian Pratt
2004-09-01 20:22 ` Kathy Chen
2004-09-08 23:43 ` Xen reboots when trying to start new domain Kip Macy
2004-09-09 0:10 ` Keir Fraser
2004-09-09 0:14 ` Kip Macy
2004-09-09 0:27 ` Keir Fraser
2004-09-09 23:52 ` Kip Macy
2004-09-10 0:28 ` Keir Fraser
2004-09-10 13:51 ` Ronald G. Minnich
2004-09-10 16:31 ` Kip Macy
2004-09-09 0:18 ` world doesn't compile with debug enabled Kip Macy
2004-09-09 0:25 ` Keir Fraser
2004-09-09 0:18 ` Re: Xen reboots when trying to start new domain Kip Macy
2004-09-09 0:19 ` Keir Fraser
2004-09-09 0:25 ` Kip Macy
2004-09-09 0:28 ` Keir Fraser
2004-09-09 0:36 ` Keir Fraser
2004-09-09 1:02 ` Keir Fraser
2004-09-09 1:52 ` Ian Pratt
2004-09-09 5:21 ` Kip Macy
2004-09-10 0:11 ` Never mind " Kip Macy
2004-09-10 0:29 ` Keir Fraser
2004-09-10 0:41 ` Kip Macy
2004-09-10 0:50 ` Kip Macy
2004-09-10 2:53 ` Keir Fraser
2004-09-10 3:09 ` Kip Macy [this message]
2004-09-10 4:41 ` Keir Fraser
2004-09-10 5:34 ` Kip Macy
[not found] <41419F96.3090106@melon.dk>
2004-09-10 14:19 ` Keir Fraser
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