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[Xen-devel] if p2m_is_paging then p2m_mem_paging_populate
| To: | Patrick Colp <pjcolp@xxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] if p2m_is_paging then p2m_mem_paging_populate |
| From: | Olaf Hering <olaf@xxxxxxxxx> |
| Date: | Tue, 31 Aug 2010 22:32:26 +0200 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Tue, 31 Aug 2010 13:33:18 -0700 |
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Patrick, when should p2m_mem_paging_populate() get called? Currently there is a mix of p2m_is_paged and p2m_is_paging in xen-unstable. The latter would mean that any of the paging states will reset the flag to p2m_ram_paging_in_start. Well, unless its p2m_ram_paging_out which is checked in p2m_mem_paging_populate itself. I could prepare a patch to convert all callers to if p2m_is_paged() then p2m_mem_paging_populate(). My guess is that the busy loop I see in my testing is caused by some race where p2mt is reset to p2m_ram_paging_in_start so that xen itself doesnt make any progress after a while. I'm currently debug that sort of hang. Olaf _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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