Signed-off-by: Alexandre Derumier <aderum...@odiso.com>
---
 PVE/QemuServer.pm | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm
index 05edd7a..ec8df94 100644
--- a/PVE/QemuServer.pm
+++ b/PVE/QemuServer.pm
@@ -5933,8 +5933,11 @@ 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};
+
+           my $kvmver = kvm_user_version();
+           if (!qemu_machine_feature_enabled (undef, $kvmver, 2, 7)) {
+               die "drive-mirror with iothread only works since qemu 2.7" if 
$drive->{iothread};
+           }
 
            qemu_drive_mirror($vmid, $drivename, $newvolid, $newvmid, 
$sparseinit);
        }
-- 
2.1.4

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