[PATCH] [autotest-client-tests] UBUNTU SAUCE: ubuntu_ltp_syscalls: properly handle SIGXFSZ

[Andrea Righi]

BugLink: https://bugs.launchpad.net/bugs/1902118

python is redefining the SIGXFSZ signal handler internally, blocking the
delivery of this signal to all the children tasks. This can break some
tests (like kill11 for example) that are expecting to find the default
signal handler and properly receive the signal.

Make sure to restore the default signal handler for SIGXFSZ before
running any test.

Signed-off-by: Andrea Righi <andrea.righi at canonical.com>
---
 ubuntu_ltp_syscalls/ubuntu_ltp_syscalls.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/ubuntu_ltp_syscalls/ubuntu_ltp_syscalls.py b/ubuntu_ltp_syscalls/ubuntu_ltp_syscalls.py
index 8d01186b..dac16692 100644
--- a/ubuntu_ltp_syscalls/ubuntu_ltp_syscalls.py
+++ b/ubuntu_ltp_syscalls/ubuntu_ltp_syscalls.py
@@ -6,9 +6,19 @@ import platform
 import re
 import sys
 import time
+import signal
 from autotest.client                        import test, utils
 from autotest.client.shared     import error
 
+# python is redefining the SIGXFSZ handler internally, blocking the delivery of
+# this signal to any forked task. Make sure to restore the default signal
+# handler for SIGXFSZ before running any test.
+try:
+    signal.signal(signal.SIGXFSZ, signal.SIG_DFL)
+except Exception, e:
+    print(e)
+    sys.stdout.flush()
+
 class ubuntu_ltp_syscalls(test.test):
     version = 1
 
-- 
2.27.0