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| author | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2017-05-17 17:58:09 +0100 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2017-05-18 18:04:53 +0200 |
| commit | 1eb3fc0a0b61b5d22adee2a9add3162a6c03a47e (patch) | |
| tree | f52c213e3456aa91214d9ee05db39a02213810ff /scripts/qemu.py | |
| parent | 56821559f0ba682fe6b367815572e6f974d329ab (diff) | |
| download | focaccia-qemu-1eb3fc0a0b61b5d22adee2a9add3162a6c03a47e.tar.gz focaccia-qemu-1eb3fc0a0b61b5d22adee2a9add3162a6c03a47e.zip | |
migration: Fix non-multiple of page size migration
Unfortunately it's legal to create a VM with a RAM size that's
not a multiple of the underlying host page or huge page size.
Recently I'd changed things to always send host sized pages,
and that breaks if we have say a 1025MB guest on 2MB hugepages.
Unfortunately we can't just make that illegal since it would break
migration from/to existing oddly configured VMs.
Symptom: qemu-system-x86_64: Illegal RAM offset 40100000
as it transmits the fraction of the hugepage after the end
of the RAMBlock (may also cause a crash on the source
- possibly due to clearing bits after the bitmap)
Reported-by: Yumei Huang <yuhuang@redhat.com>
Red Hat bug: https://bugzilla.redhat.com/show_bug.cgi?id=1449037
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'scripts/qemu.py')
0 files changed, 0 insertions, 0 deletions