This is a note to let you know that I've just added the patch titled
torture: Exclude "NOHZ tick-stop error" from fatal errors
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
torture-exclude-nohz-tick-stop-error-from-fatal-errors.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 8d68e68a781db80606c8e8f3e4383be6974878fd Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@xxxxxxxxxx>
Date: Wed, 16 Sep 2020 10:10:10 -0700
Subject: torture: Exclude "NOHZ tick-stop error" from fatal errors
From: Paul E. McKenney <paulmck@xxxxxxxxxx>
commit 8d68e68a781db80606c8e8f3e4383be6974878fd upstream.
The "NOHZ tick-stop error: Non-RCU local softirq work is pending"
warning happens frequently and appears to be irrelevant to the various
torture tests. This commit therefore filters it out.
If there proves to be a need to pay attention to it a later commit will
add an "advice" category to allow the user to immediately see that
although something happened, it was not an indictment of the system
being tortured.
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
Signed-off-by: Joel Fernandes (Google) <joel@xxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/rcutorture/bin/console-badness.sh | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/tools/testing/selftests/rcutorture/bin/console-badness.sh
+++ b/tools/testing/selftests/rcutorture/bin/console-badness.sh
@@ -13,4 +13,5 @@
egrep 'Badness|WARNING:|Warn|BUG|===========|Call Trace:|Oops:|detected stalls on CPUs/tasks:|self-detected stall on CPU|Stall ended before state dump start|\?\?\? Writer stall state|rcu_.*kthread starved for|!!!' |
grep -v 'ODEBUG: ' |
grep -v 'This means that this is a DEBUG kernel and it is' |
-grep -v 'Warning: unable to open an initial console'
+grep -v 'Warning: unable to open an initial console' |
+grep -v 'NOHZ tick-stop error: Non-RCU local softirq work is pending, handler'
Patches currently in stable-queue which might be from paulmck@xxxxxxxxxx are
queue-5.10/rcu-prevent-lockdep-rcu-splats-on-lock-acquisition-release.patch
queue-5.10/torture-exclude-nohz-tick-stop-error-from-fatal-errors.patch
queue-5.10/kcsan-instrument-memcpy-memset-memmove-with-newer-clang.patch
queue-5.10/objtool-kcsan-add-volatile-read-write-instrumentatio.patch
queue-5.10/rcu-fix-__this_cpu_read-lockdep-warning-in-rcu_force.patch
