Re: [PATCH 0/3] xen: Fix oops when mapping/unmapping addr above 1Gb
From: Jeremy Fitzhardinge
Date: Mon Mar 31 2008 - 10:56:31 EST
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.
J
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