After running ovs-tcpdump and inputs multiple CTRL+C, the program will
raise the following exception.
Error in atexit._run_exitfuncs:
Traceback (most recent call last):
File "/usr/bin/ovs-tcpdump", line 421, in cleanup_mirror
ovsdb = OVSDB(db_sock)
File "/usr/bin/ovs-tcpdump", line 168, in __init__
OVSDB.wait_for_db_change(self._idl_conn) # Initial Sync with DB
File "/usr/bin/ovs-tcpdump", line 155, in wait_for_db_change
while idl.change_seqno == seq and not idl.run():
Signed-off-by: Daniel Ding <[email protected]>
---
utilities/ovs-tcpdump.in | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/utilities/ovs-tcpdump.in b/utilities/ovs-tcpdump.in
index 4cbd9a5d3..eec2262d6 100755
--- a/utilities/ovs-tcpdump.in
+++ b/utilities/ovs-tcpdump.in
@@ -17,6 +17,7 @@
import os
import pwd
from random import randint
+import signal
import subprocess
import sys
import time
@@ -417,8 +418,22 @@ def py_which(executable):
for path in os.environ["PATH"].split(os.pathsep))
+def ignore_fatal_signals():
+ if sys.platform == "win32":
+ signals = [signal.SIGTERM, signal.SIGINT]
+ else:
+ signals = [signal.SIGTERM, signal.SIGINT, signal.SIGHUP,
+ signal.SIGALRM]
+
+ for signr in signals:
+ signal.signal(signr, signal.SIG_IGN)
+
+
def teardown(db_sock, interface, mirror_interface, tap_created):
def cleanup_mirror():
+ # Ignore fatal signals, avoid it to break OVSDB operations.
+ # So that cleanup mirror and ports be finished.
+ ignore_fatal_signals()
try:
ovsdb = OVSDB(db_sock)
ovsdb.destroy_mirror(interface, ovsdb.port_bridge(interface))
--
2.43.0
_______________________________________________
dev mailing list
[email protected]
https://mail.openvswitch.org/mailman/listinfo/ovs-dev
