Date: Wed, 26 May 2021 06:09:30 GMT From: Peter Holm <pho@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 0b5d6b8173d9 - main - stress2: Added a new ptrace() test scenario Message-ID: <202105260609.14Q69ULX087401@gitrepo.freebsd.org>
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The branch main has been updated by pho: URL: https://cgit.FreeBSD.org/src/commit/?id=0b5d6b8173d91802cd0d765ce2e19d856f4bc401 commit 0b5d6b8173d91802cd0d765ce2e19d856f4bc401 Author: Peter Holm <pho@FreeBSD.org> AuthorDate: 2021-05-26 06:08:56 +0000 Commit: Peter Holm <pho@FreeBSD.org> CommitDate: 2021-05-26 06:08:56 +0000 stress2: Added a new ptrace() test scenario --- tools/test/stress2/misc/truss2.sh | 58 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) diff --git a/tools/test/stress2/misc/truss2.sh b/tools/test/stress2/misc/truss2.sh new file mode 100755 index 000000000000..6a5743550b04 --- /dev/null +++ b/tools/test/stress2/misc/truss2.sh @@ -0,0 +1,58 @@ +#!/bin/sh + +# +# SPDX-License-Identifier: BSD-2-Clause-FreeBSD +# +# Copyright (c) 2021 Peter Holm +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# + +# Trace random cc, c++ or make threads from a buildkernel +# Test scenario idea by kib@ + +old=`sysctl -in kern.kill_on_debugger_exit` +[ -z "$old" ] && exit 0 +trap "sysctl kern.kill_on_debugger_exit=$old" EXIT INT + +# Enable ptrace(2)d processes to continue +sysctl kern.kill_on_debugger_exit=0 +./buildkernel.sh & kpid=$! +while true; do + for i in `jot 8`; do + rpid=`ps -l | grep -vwE 'grep|RE|defunct' | \ + grep -E "(cc|c\+\+|make) " | \ + sort -R | head -1 | awk '{print $2}'` + [ -n "$rpid" ] && break + sleep 1 + done + [ -z "$rpid" ] && break + kill -0 $rpid 2>/dev/null || continue + ps -lp $rpid | tail -1 + echo "truss -f -o /dev/null -p $rpid" + truss -f -o /dev/null -p $rpid & tpid=$! + sleep `jot -r 1 5 10` + pkill -9 truss + wait $tpid +done +wait $kpid +exit $?
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