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[Qemu-devel] [PULL V3 1/3] net: skip virtio-net config of deleted nic's
From: |
Jason Wang |
Subject: |
[Qemu-devel] [PULL V3 1/3] net: skip virtio-net config of deleted nic's peers |
Date: |
Tue, 15 Nov 2016 15:43:48 +0800 |
From: Yuri Benditovich <address@hidden>
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 <address@hidden>
Signed-off-by: Jason Wang <address@hidden>
---
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 06bfe4b..77a4fae 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);
--
2.7.4