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Date: Wed, 21 Jul 2021 14:01:27 -0700 From: "Paul E. McKenney" <paulmck@...nel.org> To: rcu@...r.kernel.org Cc: linux-kernel@...r.kernel.org, kernel-team@...com, mingo@...nel.org, jiangshanlai@...il.com, akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com, josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org, rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com, fweisbec@...il.com, oleg@...hat.com, joel@...lfernandes.org, "Paul E. McKenney" <paulmck@...nel.org> Subject: [PATCH rcu 08/21] torture: Protect kvm-remote.sh directory trees from /tmp reaping 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@...nel.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@...nel.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
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