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From: "Paul E. McKenney" <paulmck@kernel.org>
To: rcu@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, kernel-team@fb.com,
	mingo@kernel.org, jiangshanlai@gmail.com,
	akpm@linux-foundation.org, mathieu.desnoyers@efficios.com,
	josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org,
	rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com,
	fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org,
	"Paul E. McKenney" <paulmck@kernel.org>
Subject: [PATCH rcu 08/21] torture: Protect kvm-remote.sh directory trees from /tmp reaping
Date: Wed, 21 Jul 2021 14:01:27 -0700	[thread overview]
Message-ID: <20210721210140.787717-8-paulmck@kernel.org> (raw)
In-Reply-To: <20210721205511.GA786917@paulmck-ThinkPad-P17-Gen-1>

The kvm-remote.sh script places the datestamped directory containing
all the build artifacts in the destination systems' /tmp directories,
where they accumulate runtime artifacts such as console.log.  This works,
but some systems have a habit of removing files in /tmp that have not
been recently accessed.  This commit therefore runs a simple script that
periodically accesses all files in the datestamped directory.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
 .../rcutorture/bin/kvm-remote-noreap.sh       | 30 +++++++++++++++++++
 .../selftests/rcutorture/bin/kvm-remote.sh    |  3 +-
 2 files changed, 32 insertions(+), 1 deletion(-)
 create mode 100755 tools/testing/selftests/rcutorture/bin/kvm-remote-noreap.sh

diff --git a/tools/testing/selftests/rcutorture/bin/kvm-remote-noreap.sh b/tools/testing/selftests/rcutorture/bin/kvm-remote-noreap.sh
new file mode 100755
index 0000000000000..014ce68260d78
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/kvm-remote-noreap.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Periodically scan a directory tree to prevent files from being reaped
+# by systemd and friends on long runs.
+#
+# Usage: kvm-remote-noreap.sh pathname
+#
+# Copyright (C) 2021 Facebook, Inc.
+#
+# Authors: Paul E. McKenney <paulmck@kernel.org>
+
+pathname="$1"
+if test "$pathname" = ""
+then
+	echo Usage: kvm-remote-noreap.sh pathname
+	exit 1
+fi
+if ! test -d "$pathname"
+then
+	echo  Usage: kvm-remote-noreap.sh pathname
+	echo "       pathname must be a directory."
+	exit 2
+fi
+
+while test -d "$pathname"
+do
+	find "$pathname" -type f -exec touch -c {} \; > /dev/null 2>&1
+	sleep 30
+done
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-remote.sh b/tools/testing/selftests/rcutorture/bin/kvm-remote.sh
index 8f26dbfc2edf2..f52641fdd1fe7 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-remote.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-remote.sh
@@ -124,10 +124,11 @@ awk < "$rundir"/scenarios -v dest="$T/bin" -v rundir="$rundir" '
 	n = $1;
 	sub(/\./, "", n);
 	fn = dest "/kvm-remote-" n ".sh"
+	print "kvm-remote-noreap.sh " rundir " &" > fn;
 	scenarios = "";
 	for (i = 2; i <= NF; i++)
 		scenarios = scenarios " " $i;
-	print "kvm-test-1-run-batch.sh" scenarios > fn;
+	print "kvm-test-1-run-batch.sh" scenarios >> fn;
 	print "sync" >> fn;
 	print "rm " rundir "/remote.run" >> fn;
 }'
-- 
2.31.1.189.g2e36527f23


  parent reply	other threads:[~2021-07-21 21:02 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-21 20:55 [PATCH rcu 0/21] Torture-test scripting updates for v5.15 Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 01/21] torture: Add clocksource-watchdog testing to torture.sh Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 02/21] torture: Make torture.sh accept --do-all and --donone Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 03/21] torture: Enable KCSAN summaries over groups of torture-test runs Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 04/21] torture: Create KCSAN summaries for torture.sh runs Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 05/21] torture: Make kvm-recheck-scf.sh tolerate qemu-cmd comments Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 06/21] torture: Make kvm-recheck-lock.sh " Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 07/21] torture: Log more kvm-remote.sh information Paul E. McKenney
2021-07-21 21:01 ` Paul E. McKenney [this message]
2021-07-21 21:01 ` [PATCH rcu 09/21] torture: Make kvm-recheck.sh skip kcsan.sum for build-only runs Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 10/21] torture: Move parse-console.sh call to PATH-aware scripts Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 11/21] torture: Put kvm.sh batch-creation awk script into a temp file Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 12/21] torture: Make kvm.sh select per-scenario affinity masks Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 13/21] torture: Don't redirect qemu-cmd comment lines Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 14/21] torture: Make kvm-test-1-run-qemu.sh apply affinity Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 15/21] rcutorture: Upgrade two-CPU scenarios to four CPUs Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 16/21] torture: Use numeric taskset argument in jitter.sh Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 17/21] torture: Consistently name "qemu*" test output files Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 18/21] torture: Make kvm-test-1-run-batch.sh select per-scenario affinity masks Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 19/21] torture: Don't use "test" command's "-a" argument Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 20/21] torture: Add timestamps to kvm-test-1-run-qemu.sh output Paul E. McKenney
2021-07-21 21:01 ` [PATCH rcu 21/21] torture: Make kvm-test-1-run-qemu.sh check for reboot loops Paul E. McKenney

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