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Message-ID: <20250716205712.1787325-1-kuba@kernel.org>
Date: Wed, 16 Jul 2025 13:57:12 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org,
edumazet@...gle.com,
pabeni@...hat.com,
andrew+netdev@...n.ch,
horms@...nel.org,
Jakub Kicinski <kuba@...nel.org>,
shuah@...nel.org,
petrm@...dia.com,
sdf@...ichev.me
Subject: [PATCH net-next] selftests: net: prevent Python from buffering the output
Make sure Python doesn't buffer the output, otherwise for some
tests we may see false positive timeouts in NIPA. NIPA thinks that
a machine has hung if the test doesn't print anything for 3min.
This is also nice to heave for running the tests manually,
especially in vng.
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
CC: shuah@...nel.org
CC: petrm@...dia.com
CC: sdf@...ichev.me
---
tools/testing/selftests/net/lib/py/ksft.py | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/tools/testing/selftests/net/lib/py/ksft.py b/tools/testing/selftests/net/lib/py/ksft.py
index 61287c203b6e..8e35ed12ed9e 100644
--- a/tools/testing/selftests/net/lib/py/ksft.py
+++ b/tools/testing/selftests/net/lib/py/ksft.py
@@ -32,6 +32,7 @@ KSFT_DISRUPTIVE = True
def ksft_pr(*objs, **kwargs):
+ kwargs["flush"] = True
print("#", *objs, **kwargs)
@@ -139,7 +140,7 @@ KSFT_DISRUPTIVE = True
res += "." + str(case.__name__)
if comment:
res += " # " + comment
- print(res)
+ print(res, flush=True)
def ksft_flush_defer():
@@ -227,8 +228,8 @@ KSFT_DISRUPTIVE = True
totals = {"pass": 0, "fail": 0, "skip": 0, "xfail": 0}
- print("TAP version 13")
- print("1.." + str(len(cases)))
+ print("TAP version 13", flush=True)
+ print("1.." + str(len(cases)), flush=True)
global KSFT_RESULT
cnt = 0
--
2.50.1
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