From 074f698be5c2e6afc9df776b56a366bc3f404d95 Mon Sep 17 00:00:00 2001 From: Steven Date: Fri, 30 Mar 2018 22:18:11 -0700 Subject: tapv2: Sporadic SIGABRT in ethernet_input [VPP-1183] virtio_free_rx_buffers uses the wrong slot in the vring to get the buffer index. It uses desc_next. It should be last_used_idx which is the slot number for the first valid descriptor. Change-Id: I6b62b794f06869fbffffce45430b8b2e37b1266c Signed-off-by: Steven --- src/vnet/devices/virtio/virtio.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'src/vnet/devices/virtio/virtio.c') diff --git a/src/vnet/devices/virtio/virtio.c b/src/vnet/devices/virtio/virtio.c index aa9db3a0ef3..072e8a755b0 100644 --- a/src/vnet/devices/virtio/virtio.c +++ b/src/vnet/devices/virtio/virtio.c @@ -140,13 +140,13 @@ static_always_inline void virtio_free_rx_buffers (vlib_main_t * vm, virtio_vring_t * vring) { u16 used = vring->desc_in_use; - u16 next = vring->desc_next; + u16 last = vring->last_used_idx; u16 mask = vring->size - 1; while (used) { - vlib_buffer_free (vm, &vring->buffers[next], 1); - next = (next + 1) & mask; + vlib_buffer_free (vm, &vring->buffers[last & mask], 1); + last++; used--; } } -- cgit 1.2.3-korg