[Xen-devel] Re: [PATCH 0/3] xen: Fix oops when mapping/unmapping addr above 1Gb - Jeremy Fitzhardinge - com.xensource.lists.xen-devel

11 messages in com.xensource.lists.xen-devel[Xen-devel] Re: [PATCH 0/3] xen: Fix ...

From	Sent On	Attachments
Mark McLoughlin	28 Mar 2008 09:37
Mark McLoughlin	28 Mar 2008 09:37
Mark McLoughlin	28 Mar 2008 09:37
Mark McLoughlin	28 Mar 2008 09:37
Jeremy Fitzhardinge	28 Mar 2008 11:02
Ingo Molnar	31 Mar 2008 06:14
Jeremy Fitzhardinge	31 Mar 2008 07:55
Mark McLoughlin	02 Apr 2008 07:35
Mark McLoughlin	02 Apr 2008 07:36
Mark McLoughlin	02 Apr 2008 07:36
Mark McLoughlin	02 Apr 2008 07:36

Subject:	[Xen-devel] Re: [PATCH 0/3] xen: Fix oops when mapping/unmapping addr above 1Gb
From:	Jeremy Fitzhardinge (jer...@goop.org)
Date:	03/31/2008 07:55:04 AM
List:	com.xensource.lists.xen-devel

Ingo Molnar wrote:

* Mark McLoughlin <mar...@redhat.com> 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.