In qemuDomainGetXMLDesc, if cur_balloon is bigger than max_balloon,
max_balloon should be updated too, otherwise the currentMemory is
bigger than memory in dumped xml, which will produce invalid
checkpoint by virsh-save.
The bug appears like this below:
$virsh save vm-num foo.ckp
$virsh restore foo.ckp
error: XML error: current memory '824320k' exceeds maximum '824288k'
Signed-off-by: Zhou Peng <ailvpeng25(a)gmail.com>
---
src/qemu/qemu_driver.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 0d3b0bd..96d3219 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -4485,7 +4485,13 @@ endjob:
if (err < 0)
goto cleanup;
if (err > 0)
+ {
vm->def->mem.cur_balloon = balloon;
+ if (balloon > vm->def->mem.max_balloon)
+ {
+ vm->def->mem.max_balloon = balloon;
+ }
+ }
/* err == 0 indicates no balloon support, so ignore it */
}
}
--
1.7.7.6
