From 2af848a2dae5e958784c4ab037c6cf6ff5ef3354 Mon Sep 17 00:00:00 2001
From: Alexandre Derumier <aderumier@odiso.com>
Date: Sat, 20 Aug 2016 10:02:29 +0200
Subject: [PATCH] disable drive-mirror when iothread is enabled

drive-mirror is not working with qemu 2.6 when iothread is enabled.

with virtio-blk : mirror is working, but block-job-completed crash the vm
with virtio-scsi : mirror hang at start.

This should be fixed in qemu 2.7

Signed-off-by: Alexandre Derumier <aderumier@odiso.com>
---
 PVE/QemuServer.pm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm
index 2414fd86..46f8fdcc 100644
--- a/PVE/QemuServer.pm
+++ b/PVE/QemuServer.pm
@@ -5761,6 +5761,9 @@ sub clone_disk {
 	if (!$running || $snapname) {
 	    qemu_img_convert($drive->{file}, $newvolid, $size, $snapname, $sparseinit);
 	} else {
+	    #qemu 2.6
+	    die "drive-mirror is not working currently when iothread is enabled" if $drive->{iothread};
+
 	    qemu_drive_mirror($vmid, $drivename, $newvolid, $newvmid, $sparseinit);
 	}
     }