130 lines
3.4 KiB
Bash
Executable File
130 lines
3.4 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2015 EMC Corp.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# truss(1) of a multithreaded program.
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# FAIL
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# 0 90968 90933 0 52 0 6028 0 wait IW+ 1 0:00,00 truss /tmp/ttruss
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# 0 90970 90968 0 52 0 6436 1560 uwrlck IX+ 1 0:00,00 /tmp/ttruss
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# $ procstat -k 90970
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# PID TID COMM TDNAME KSTACK
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# 90970 101244 ttruss - mi_switch sleepq_switch
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# sleepq_catch_signals sleepq_wait_sig _sleep umtxq_sleep
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# do_rw_wrlock __umtx_op_rw_wrlock syscall Xint0x80_syscall
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# $
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# Only seen during testing of a WiP ptrace(2) patch.
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. ../default.cfg
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dir=/tmp
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odir=`pwd`
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cd $dir
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sed '1,/^EOF/d' < $odir/$0 > $dir/ttruss.c
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mycc -o ttruss -Wall -Wextra -O0 -g ttruss.c -lpthread || exit 1
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rm -f ttruss.c
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# VM pressure is not mandatory, but shortens the time to failure.
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daemon sh -c \
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"(cd $odir/../testcases/swap; ./swap -t 6m -i 20 -k -l 100)" > \
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/dev/null
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sleep .5
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for i in `jot 30`; do
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truss /tmp/ttruss 10 > /dev/null 2>&1 &
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sleep 11
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if ps -lx | grep -v grep | grep -q uwrlck; then
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echo FAIL
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ps -lH | egrep -v "grep|truss.sh" | grep truss
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while pkill -9 swap; do
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:
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done
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exit 1
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fi
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wait
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done
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while pkill -9 swap; do
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:
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done
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sleep 2
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if pgrep -q ttruss; then
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echo FAIL
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ps -lxH | grep -v grep | grep ttruss
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s=1
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fi
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[ -f /tmp/truss.core ] && { ls -l /tmp/truss.core; s=1; }
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rm -rf /tmp/ttruss /tmp/ttruss.core
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exit $s
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EOF
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#include <sys/param.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <unistd.h>
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#define THREADS 16
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static void *
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t1(void *data __unused)
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{
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return (NULL);
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}
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int
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main(int argc, char *argv[])
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{
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pthread_t tid[THREADS];
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time_t start;
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int i, rc, runtime;
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if (argc != 2)
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errx(1, "Usage: %s <runtime>", argv[0]);
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runtime = atoi(argv[1]);
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start = time(NULL);
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while ((time(NULL) - start) < runtime) {
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for (i = 0; i < THREADS; i++) {
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if ((rc = pthread_create(&tid[i], NULL, t1, NULL)) !=
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0)
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errc(1, rc, "pthread_create");
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}
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for (i = 0; i < THREADS; i++) {
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if ((rc = pthread_join(tid[i], NULL)) != 0)
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errc(1, rc, "pthread_join");
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}
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}
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return (0);
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}
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