On Fri, May 29, 2015 at 17:17:07 +0800, Wang Yufei wrote: > From: Zhang Bo <[email protected]> > > when we run the command 'virsh dommemstat xxx', > althrough memballoon's model is set 'none' in vm's XML, > it still reports an error in libvirtd.log. > error : qemuMonitorFindBalloonObjectPath:1042 : internal error: Cannot > determine balloon device path > Apparently, if we don't set memballoon, we don't need to > set balloon device path. > > Signed-off-by: Wang Yufei <[email protected]> > Signed-off-by: Zhang Bo <[email protected]> > --- > .gnulib | 2 +- > src/qemu/qemu_monitor.c | 4 +++- > 2 files changed, 4 insertions(+), 2 deletions(-) > > diff --git a/.gnulib b/.gnulib > index 875ec93..106a386 160000 > --- a/.gnulib > +++ b/.gnulib > @@ -1 +1 @@ > -Subproject commit 875ec93e1501d2d2a8bab1b64fa66b8ceb51dc67 > +Subproject commit 106a3866d01f9dd57ab4f10dbeb0d5a8db73a9f7
Regular patches should not change the gnulib commit id. Also it is
probably decreasing version of gnulib. Please make sure to update the
submodule before commiting code.
> diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c
> index f959b74..c72702d 100644
> --- a/src/qemu/qemu_monitor.c
> +++ b/src/qemu/qemu_monitor.c
> @@ -1711,7 +1711,9 @@ qemuMonitorGetMemoryStats(qemuMonitorPtr mon,
> QEMU_CHECK_MONITOR(mon);
>
> if (mon->json) {
> - ignore_value(qemuMonitorFindBalloonObjectPath(mon, "/"));
> + if (mon->vm->def->memballoon &&
> + mon->vm->def->memballoon->model !=
> VIR_DOMAIN_MEMBALLOON_MODEL_NONE)
> + ignore_value(qemuMonitorFindBalloonObjectPath(mon, "/"));
The qemu monitor code is not the right place to do this check. The API
that is calling the function should make sure that it makes sense to do
this call.
> mon->ballooninit = true;
> return qemuMonitorJSONGetMemoryStats(mon, mon->balloonpath,
> stats, nr_stats);
Peter
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