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authorDaniel Borkmann <dborkman@redhat.com>2013-03-28 18:48:25 +0100
committerDaniel Borkmann <dborkman@redhat.com>2013-03-28 18:48:25 +0100
commit367efea8c9ba557a81158a69ecee267706a520eb (patch)
tree461ddf127e076a99d792e59006fd599ad1704c01 /ring_rx.c
parentb55fde49e9f3e772b62e175cdbbec8f9fcc77567 (diff)
ring: purge timer before we unmap tx ring buffers
If we unmap TX ring buffers and still have timer shots that trigger the kernel to traverse the TX_RING, it can send out random crap in some situations. Prevent this by destroying the timer and flush the TX_RING first in wait mode. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Diffstat (limited to 'ring_rx.c')
-rw-r--r--ring_rx.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ring_rx.c b/ring_rx.c
index 5675a81..d89d762 100644
--- a/ring_rx.c
+++ b/ring_rx.c
@@ -30,7 +30,7 @@ void destroy_rx_ring(int sock, struct ring *ring)
ret = setsockopt(sock, SOL_PACKET, PACKET_RX_RING, &ring->layout,
sizeof(ring->layout));
if (unlikely(ret))
- panic("Cannot destroy the RX_RING!\n");
+ panic("Cannot destroy the RX_RING: %s!\n", strerror(errno));
xfree(ring->frames);
}