From 68b5f314a269979b4f2014eb22873732d4745bcc Mon Sep 17 00:00:00 2001 From: Yuri Benditovich Date: Tue, 1 Nov 2016 00:01:17 +0200 Subject: [PATCH] net: skip virtio-net config of deleted nic's peers https://bugzilla.redhat.com/show_bug.cgi?id=1373816 qemu core dump happens during repetitive unpug-plug with multiple queues and Windows RSS-capable guest. If back-end delete requested during virtio-net device initialization, driver still can try configure the device for multiple queues. The virtio-net device is expected to be removed as soon as the initialization is done. Signed-off-by: Yuri Benditovich Signed-off-by: Jason Wang --- hw/net/virtio-net.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index 06bfe4bcc9..77a4fae399 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -508,6 +508,10 @@ static void virtio_net_set_queues(VirtIONet *n) int i; int r; + if (n->nic->peer_deleted) { + return; + } + for (i = 0; i < n->max_queues; i++) { if (i < n->curr_queues) { r = peer_attach(n, i);