ovs-tcpdump: should't halt when dumping traffic.

when sys.stdin is passed to tcpdump via pipe,
it will cause tcpdump to halt.

Signed-off-by: nickcooper-zhangtonghao <nic@opencloud.tech>
Signed-off-by: Ben Pfaff <blp@ovn.org>
Acked-by: Aaron Conole <aconole@redhat.com>

1 files changed, 0 insertions, 3 deletions

diff --git a/utilities/ovs-tcpdump.in b/utilities/ovs-tcpdump.in
index 01e1f6d24..c189bc824 100755
--- a/utilities/ovs-tcpdump.in
+++ b/utilities/ovs-tcpdump.in
@@ -430,9 +430,6 @@ def main():
             if len(data) == 0:
                 raise KeyboardInterrupt
             print(data)
-            if select.select([sys.stdin], [], [], 0.0)[0]:
-                data_in = sys.stdin.read()
-                pipes.stdin.write(data_in)
         raise KeyboardInterrupt
     except KeyboardInterrupt:
         pipes.terminate()