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[Xen-devel] [PATCH] PoD: Handle operations properly when domain is dying
| To: | xen-devel@xxxxxxxxxxxxxxxxxxx |
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| Subject: | [Xen-devel] [PATCH] PoD: Handle operations properly when domain is dying |
| From: | George Dunlap <George.Dunlap@xxxxxxxxxxxxx> |
| Date: | Wed, 11 Nov 2009 15:08:04 +0000 |
| Delivery-date: | Wed, 11 Nov 2009 07:08:27 -0800 |
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Handle PoD operations properly when a domain is dying. No populate-on-demand activities should happen when a domain is dying. Especially, it is a bug for memory to be added to the PoD cache when d->is_dying is non-zero, since if this happens after the cache has been emptied, these pages will never be freed. This may cause "zombie domains" to linger. Signed-off-by: George Dunlap <george.dunlap@xxxxxxxxxxxxx>
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