To aid in troubleshooting add some debug messages wrt bandwidth settings and networks. Signed-off-by: Daniel P. Berrangé <berrange(a)redhat.com&gt; --- src/network/bridge_driver.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c index 6a97bb17e2..c54be96407 100644 --- a/src/network/bridge_driver.c +++ b/src/network/bridge_driver.c @@ -5192,9 +5192,14 @@ networkCheckBandwidth(virNetworkObjPtr obj, return -1; } + if (!netBand || !netBand->in) { + VIR_DEBUG("No network bandwidth controls present"); + /* no QoS required, claim success */ + return 1; + } if (((!ifaceBand || !ifaceBand->in || !ifaceBand->in->floor) && - (!oldBandwidth || !oldBandwidth->in || !oldBandwidth->in->floor)) || - !netBand || !netBand->in) { + (!oldBandwidth || !oldBandwidth->in || !oldBandwidth->in->floor))) { + VIR_DEBUG("No old/new interface bandwidth floor"); /* no QoS required, claim success */ return 1; } -- 2.21.0