Nothing that could happen during networkNotifyActualDevice() could justify unceremoniously killing the qemu process, but that's what we were doing. In particular, new code added in commit 85bcc022 (first appearred in libvirt-3.2.0) attempts to reattach tap devices to their assigned bridge devices when libvirtd restarts (to make it easier to recover from a restart of a libvirt network). But if the network has been stopped and *not* restarted, the bridge device won't exist and networkNotifyActualDevice() will fail. This patch changes qemuProcessNotifyNets() to return void, so that qemuProcessReconnect() will soldier on regardless of what happens (any errors will still be logged, but we won't terminate the guest). Partially resolves: https://bugzilla.redhat.com/1442700 --- NB: there are many other things that might fail during reconnection of a qemu process that shouldn't lead to killing the qemu process. qemuProcessReconnect() could use a good audit to change what happens when certain items fail. src/qemu/qemu_process.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index 53170d7..fcb5763 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -2825,7 +2825,7 @@ int qemuProcessStopCPUs(virQEMUDriverPtr driver, -static int +static void qemuProcessNotifyNets(virDomainDefPtr def) { size_t i; @@ -2840,10 +2840,8 @@ qemuProcessNotifyNets(virDomainDefPtr def) if (virDomainNetGetActualType(net) == VIR_DOMAIN_NET_TYPE_DIRECT) ignore_value(virNetDevMacVLanReserveName(net->ifname, false)); - if (networkNotifyActualDevice(def, net) < 0) - return -1; + networkNotifyActualDevice(def, net); } - return 0; } static int @@ -3480,8 +3478,7 @@ qemuProcessReconnect(void *opaque) if (qemuSecurityReserveLabel(driver->securityManager, obj->def, obj->pid) < 0) goto error; - if (qemuProcessNotifyNets(obj->def) < 0) - goto error; + qemuProcessNotifyNets(obj->def); if (qemuProcessFiltersInstantiate(obj->def)) goto error; -- 2.9.3 -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list
