Re: [libvirt] [PATCH 02/20] Wait to receive QMP greeting before sending any monitor commands

From: "Daniel P. Berrange" <berrange(a)redhat.com&gt; Technically speaking we should wait until we receive the QMP greeting message before attempting to send any QMP monitor commands. Mostly we've got away with this, but there is a race in some QEMU which cause it to SEGV if you sent it data too soon after startup. Waiting for the QMP greeting avoids the race Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com&gt; --- src/qemu/qemu_monitor.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)

@@ -716,6 +721,8 @@ qemuMonitorOpen(virDomainObjPtr vm, mon->fd = -1; mon->vm = vm; mon->json = json; + if (json) + mon->wait_greeting = 1;