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[Xen-devel] Live migration leaves page tables read-only?
| To: | xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
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| Subject: | [Xen-devel] Live migration leaves page tables read-only? |
| From: | John Byrne <john.l.byrne@xxxxxx> |
| Date: | Tue, 28 Nov 2006 16:13:25 -0800 |
| Delivery-date: | Tue, 28 Nov 2006 16:13:38 -0800 |
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I have been trying to debug a problem live-migrating SAP on Xen-3.0.3 x86-64 (I also tested Xen-unstable changeset 12548) without success. SAP seems to run fine on a given host; live-migrating it to another host causes the guest to almost immediately panic in the mprotect() call in the change_pte_range() routine in the set_pte_at() macro because the page table page it is trying to update is write-protected. My attempts at understanding where this is coming from have come to naught. Any help in running this down would be appreciated. I am perfectly willing/able to write some debugging code if I am given a few clues what to look for. Thanks, John Byrne _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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