[tip/core/rcu,06/28] refscale: Disable verbose torture-test output
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Message ID 20210304003812.24833-6-paulmck@kernel.org
State In Next
Commit 27c4b2ea9d54835b8ac640719c059689ae17bf06
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Series
  • Torture-test scripting updates for v5.13
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Commit Message

Paul E. McKenney March 4, 2021, 12:37 a.m. UTC
From: "Paul E. McKenney" <paulmck@kernel.org>

Given large numbers of threads, the quantity of torture-test output is
sufficient to sometimes result in RCU CPU stall warnings.  The probability
of these stall warnings was greatly reduced by batching the output,
but the warnings were not eliminated.  However, the actual test only
depends on console output that is printed even when refscale.verbose=0.
This commit therefore causes this test to run with refscale.verbose=0.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
 tools/testing/selftests/rcutorture/configs/refscale/ver_functions.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch
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diff --git a/tools/testing/selftests/rcutorture/configs/refscale/ver_functions.sh b/tools/testing/selftests/rcutorture/configs/refscale/ver_functions.sh
index 321e826..f81fa2c 100644
--- a/tools/testing/selftests/rcutorture/configs/refscale/ver_functions.sh
+++ b/tools/testing/selftests/rcutorture/configs/refscale/ver_functions.sh
@@ -12,5 +12,5 @@ 
 # Adds per-version torture-module parameters to kernels supporting them.
 per_version_boot_params () {
 	echo $1 refscale.shutdown=1 \
-		refscale.verbose=1
+		refscale.verbose=0
 }