[libvirt] [PATCH] qemuDomainSnapshotCreateActiveExternal: Remove memory snapshot on failure less frequently

Michal Privoznik mprivozn at redhat.com
Thu Aug 30 09:22:35 UTC 2018


https://bugzilla.redhat.com/show_bug.cgi?id=1589115

When creating a memory snapshot the domain is suspended and qemu
is told to dump memory into the desired file. After that we set a
flag so that the file is not left behind if a failure occurs at
some later point (e.g. when creating disk snapshot fails).
However, the way we currently handle the memory snapshot file is
way too aggressive. For instance, if resuming domain vCPUs fails
after all snapshots were done successfully, we still remove the
memory snapshot (even though we leave disk snapshot be).

Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
---
 src/qemu/qemu_driver.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index a0f7c71675..2eae3dd49d 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -15248,6 +15248,7 @@ qemuDomainSnapshotCreateActiveExternal(virQEMUDriverPtr driver,
         virObjectEventStateQueue(driver->domainEventState, event);
     }
 
+    memory_unlink = false;
     ret = 0;
 
  cleanup:
-- 
2.16.4




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