This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


[Xen-devel] Re: [PATCH 0/3] xen: Fix oops when mapping/unmapping addr ab

To: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Subject: [Xen-devel] Re: [PATCH 0/3] xen: Fix oops when mapping/unmapping addr above 1Gb
From: Mark McLoughlin <markmc@xxxxxxxxxx>
Date: Wed, 02 Apr 2008 15:35:43 +0100
Cc: Ingo Molnar <mingo@xxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, "H. Peter Anvin" <hpa@xxxxxxxxx>
Delivery-date: Wed, 02 Apr 2008 07:36:38 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <47F0FB5F.2000908@xxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <1206722297-11763-1-git-send-email-markmc@xxxxxxxxxx> <20080331131442.GF14636@xxxxxxx> <47F0FB5F.2000908@xxxxxxxx>
Reply-to: Mark McLoughlin <markmc@xxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
On Mon, 2008-03-31 at 07:55 -0700, Jeremy Fitzhardinge wrote:
> Ingo Molnar wrote:
> > * Mark McLoughlin <markmc@xxxxxxxxxx> wrote:
> >   
> >>         In Fedora rawhide we're currently seeing oopses whenever a 
> >> processes dlopen()s a library which prelink() has previously relocated 
> >> above 1Gb. Some more details at:
> >>
> >>   https://bugzilla.redhat.com/436453
> >>
> >>         The issue seems to be that during xen_pgd_pin(), we only pin 
> >> PTE pages, but xen's release_pmd() tries to unpin PMD pages too.
> >>
> >>         The following series of patches is against the latest x86 
> >> tree.
> >>     
> >
> > thanks, i've picked them up to get them tested - but it would be nice to 
> > have an ack from Jeremy as well. This seems like v2.6.25 material as 
> > well, right?
> Didn't I reply?  Anyway, the patch looks good.  It's definitely 2.6.25 
> material; its fallout from the changes I did to dynamically 
> allocate/deallocate pmds rather than always do them with the pgd.

Okay, here are the patches rebased to 2.6.25-rc8.

I've reproduced the issue with plain -rc8 and confirmed the patches fix


Xen-devel mailing list

<Prev in Thread] Current Thread [Next in Thread>