From owner-svn-src-user@freebsd.org Tue Nov 20 09:30:27 2018 Return-Path: Delivered-To: svn-src-user@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 50C8F11074EE for ; Tue, 20 Nov 2018 09:30:27 +0000 (UTC) (envelope-from pho@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id E891C82686; Tue, 20 Nov 2018 09:30:26 +0000 (UTC) (envelope-from pho@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id C85A676DB; Tue, 20 Nov 2018 09:30:26 +0000 (UTC) (envelope-from pho@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id wAK9UQLD064167; Tue, 20 Nov 2018 09:30:26 GMT (envelope-from pho@FreeBSD.org) Received: (from pho@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id wAK9UQFM064166; Tue, 20 Nov 2018 09:30:26 GMT (envelope-from pho@FreeBSD.org) Message-Id: <201811200930.wAK9UQFM064166@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: pho set sender to pho@FreeBSD.org using -f From: Peter Holm Date: Tue, 20 Nov 2018 09:30:26 +0000 (UTC) To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r340665 - user/pho/stress2/misc X-SVN-Group: user X-SVN-Commit-Author: pho X-SVN-Commit-Paths: user/pho/stress2/misc X-SVN-Commit-Revision: 340665 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: E891C82686 X-Spamd-Result: default: False [0.67 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_SPAM_SHORT(0.60)[0.597,0]; NEURAL_HAM_LONG(-0.02)[-0.019,0]; NEURAL_SPAM_MEDIUM(0.09)[0.089,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US] X-Rspamd-Server: mx1.freebsd.org X-BeenThere: svn-src-user@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the experimental " user" src tree" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Nov 2018 09:30:27 -0000 Author: pho Date: Tue Nov 20 09:30:26 2018 New Revision: 340665 URL: https://svnweb.freebsd.org/changeset/base/340665 Log: Added a kevent(2) test. PR: 228858 Sponsored by: Dell EMC Isilon Added: user/pho/stress2/misc/kevent12.sh (contents, props changed) Added: user/pho/stress2/misc/kevent12.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/kevent12.sh Tue Nov 20 09:30:26 2018 (r340665) @@ -0,0 +1,234 @@ +#!/bin/sh + +# +# SPDX-License-Identifier: BSD-2-Clause-FreeBSD +# +# Copyright (c) 2018 Dell EMC Isilon +# +# 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. +# +# $FreeBSD$ +# + +# Bug 228858 - panic when delivering knote to a process who has opened a +# kqueue() is dying +# Page fault seen: https://people.freebsd.org/~pho/stress/log/mark052.txt + +# Test scenario based on analysis by siddharthtuli gmail com + +. ../default.cfg + +odir=`pwd` + +cd /tmp +sed '1,/^EOF/d' < $odir/$0 > kevent12.c +mycc -o kevent12 -Wall -Wextra -O2 -g kevent12.c || exit 1 +rm -f kevent12.c +cd $odir + +(cd $odir/../testcases/swap; ./swap -t 5m -i 20 -l 100 > /dev/null 2>&1) & +pid=$! +/tmp/kevent12 +while pgrep -q swap; do + pkill -9 swap +done +wait $pid + +rm -f /tmp/kevent12 +exit 0 +EOF +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#define PARALLEL 64 +#define RUNTIME (5 * 60) + +static pid_t parent; +static int kq; + +static void +hand(int i __unused) { /* handler */ + kill(parent, SIGINT); + _exit(1); +} + +static void +init_kq() +{ + kq = kqueue(); + if (kq == -1) + err(1, "kqueue"); +} + +static void +add_watch(pid_t pid) +{ + struct kevent kev; + char msg[64]; + + bzero(&kev, sizeof(kev)); + kev.ident = pid; + kev.flags = EV_ADD | EV_ENABLE; + kev.filter = EVFILT_PROC; + kev.fflags = NOTE_EXIT | NOTE_EXEC | NOTE_TRACK | NOTE_TRACKERR; + + for (;;) { + int res = kevent(kq, &kev, 1, NULL, 0, NULL); + if (res == -1) { + if (errno == EINTR) + continue; + if (errno == ESRCH) + break; + + snprintf(msg, sizeof(msg), + "kevent - add watch for pid %u", pid); + err(1, "%s", msg); + } + else + break; + } +} + +static void +polling() +{ + struct kevent kev[10]; +#if defined(DEBUG) + pid_t pid; + int i; +#endif + + for (;;) { + bzero(&kev, sizeof(kev)); + if (arc4random() % 100 < 10) { + signal(SIGALRM, hand); + ualarm(10000, 0); + } + int res = kevent(kq, NULL, 0, kev, + sizeof(kev) / sizeof(kev[0]), NULL); + if (res == -1) { + if (errno == EINTR) + continue; + + if (errno == ESRCH) + continue; + + err(1, "kevent"); + } + +#if defined(DEBUG) + for (i = 0; i < res; i++) { + pid = kev[i].ident; + if (kev[i].fflags & NOTE_CHILD) { + add_watch(pid); + printf("%u - new process, parent %u\n", pid, + (unsigned int)kev[i].data); + } + if (kev[i].fflags & NOTE_FORK) { + printf("%u forked\n", pid); + } + if (kev[i].fflags & NOTE_EXEC) { + printf("%u called exec\n", pid); + } + if (kev[i].fflags & NOTE_EXIT) { + printf("%u exited\n", pid); + if (parent == pid) + return; + } + if (kev[i].fflags & NOTE_TRACK) { + printf("%u forked - track\n", pid); + } + if (kev[i].fflags & NOTE_TRACKERR) { + fprintf(stderr, "%u - track error\n", pid); + } + } +#endif + } +} + +void +churn(void) +{ + pid_t pid; + time_t start; + char *cmdline[] = { "/usr/bin/true", NULL }; + + start = time(NULL); + while (time(NULL) - start < RUNTIME) { + if ((pid = fork()) == -1) + err(1, "fork"); + if (pid == 0) { + if (execve(cmdline[0], cmdline, NULL) == -1) + err(1, "execve"); + } + if (waitpid(pid, NULL, 0) != pid) + err(1, "waitpid(%d):%d", pid, __LINE__); + } + + _exit(0); +} + +int +test(void) +{ + if ((parent = fork()) == 0) + churn(); + + init_kq(); + add_watch(parent); + polling(); + if (waitpid(parent, NULL, 0) != parent) + err(1, "waitpid(%d):%d", parent, __LINE__); + + _exit(0); +} + +int +main(void) +{ + pid_t pids[PARALLEL]; + time_t start; + int i; + + start = time(NULL); + while (time(NULL) - start < RUNTIME) { + for (i = 0; i < PARALLEL; i++) { + if ((pids[i] = fork()) == 0) + test(); + } + for (i = 0; i < PARALLEL; i++) + if (waitpid(pids[i], NULL, 0) != pids[i]) + err(1, "waitpid(%d):%d", pids[i], __LINE__); + } + + return (0); +} From owner-svn-src-user@freebsd.org Tue Nov 20 09:34:04 2018 Return-Path: Delivered-To: svn-src-user@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id B52AB1107811 for ; Tue, 20 Nov 2018 09:34:04 +0000 (UTC) (envelope-from pho@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 5C98882BB4; Tue, 20 Nov 2018 09:34:04 +0000 (UTC) (envelope-from pho@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 3F0B6786E; Tue, 20 Nov 2018 09:34:04 +0000 (UTC) (envelope-from pho@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id wAK9Y4jR068807; Tue, 20 Nov 2018 09:34:04 GMT (envelope-from pho@FreeBSD.org) Received: (from pho@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id wAK9Y4XH068806; Tue, 20 Nov 2018 09:34:04 GMT (envelope-from pho@FreeBSD.org) Message-Id: <201811200934.wAK9Y4XH068806@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: pho set sender to pho@FreeBSD.org using -f From: Peter Holm Date: Tue, 20 Nov 2018 09:34:04 +0000 (UTC) To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r340666 - user/pho/stress2/misc X-SVN-Group: user X-SVN-Commit-Author: pho X-SVN-Commit-Paths: user/pho/stress2/misc X-SVN-Commit-Revision: 340666 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 5C98882BB4 X-Spamd-Result: default: False [0.67 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_SPAM_SHORT(0.60)[0.597,0]; NEURAL_HAM_LONG(-0.02)[-0.019,0]; NEURAL_SPAM_MEDIUM(0.09)[0.089,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US] X-Rspamd-Server: mx1.freebsd.org X-BeenThere: svn-src-user@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the experimental " user" src tree" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Nov 2018 09:34:04 -0000 Author: pho Date: Tue Nov 20 09:34:03 2018 New Revision: 340666 URL: https://svnweb.freebsd.org/changeset/base/340666 Log: Added a kevent(2) / pipe(2) test scenario. Sponsored by: Dell EMC Isilon Added: user/pho/stress2/misc/kevent13.sh (contents, props changed) Added: user/pho/stress2/misc/kevent13.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/kevent13.sh Tue Nov 20 09:34:03 2018 (r340666) @@ -0,0 +1,134 @@ +#!/bin/sh + +# +# SPDX-License-Identifier: BSD-2-Clause-FreeBSD +# +# Copyright (c) 2018 Dell EMC Isilon +# +# 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. +# +# $FreeBSD$ +# + +# Test based on scenario by Babcia Padlina + +# "panic: mutex pipe mutex not owned at sys_pipe.c:1769" seen: +# https://people.freebsd.org/~pho/stress/log/kevent13.txt + +. ../default.cfg + +odir=`pwd` +cd /tmp +sed '1,/^EOF/d' < $odir/$0 > kevent13.c +cc -o kevent13 -Wall kevent13.c -lpthread +rm -f kevent13.c + +[ -d "$RUNDIR" ] || mkdir -p $RUNDIR +cd $RUNDIR +for i in `jot 10`; do + /tmp/kevent13 & + /tmp/kevent13 & + wait +done + +rm -f /tmp/kevent13 +exit 0 +EOF +/* + * 29.08.2009, babcia padlina + */ + +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +#define LOOPS 200000 + +struct kevent kev, ke[2]; +struct timespec timeout; +volatile int go; +int fd[2], kq; + +void +do_thread(void) { + int i; + + go = 1; + for (i = 0; i < LOOPS; i++) { + if (pipe(fd) < 0) + err(1, "pipe"); + memset(&kev, 0, sizeof(kev)); + EV_SET(&kev, fd[0], EVFILT_READ, EV_ADD | EV_CLEAR, 0, 0, NULL); + EV_SET(&kev, fd[1], EVFILT_WRITE, EV_ADD | EV_CLEAR, 0, 0, NULL); + + if (kevent(kq, &kev, 2, &ke[0], 2, &timeout) < 0) + err(1, "kevent"); + + close(fd[0]); + close(fd[1]); + } +} + +void +do_thread2(void) { + int i; + + while (go == 0) + usleep(10); + for (i = 0; i < LOOPS; i++) { + close(fd[0]); + close(fd[1]); + } +} + +int +main(void) { + pthread_t pth, pth2; + int r; + + if ((kq = kqueue()) < 0) + err(1, "kqueue"); + + if ((r = pthread_create(&pth, NULL, (void *)do_thread, NULL)) != 0) + errc(1, r, "pthread_create"); + if ((r = pthread_create(&pth2, NULL, (void *)do_thread2, NULL)) != 0) + errc(1, r, "pthread_create"); + + timeout.tv_sec = 0; + timeout.tv_nsec = 1; + + if ((r = pthread_join(pth, NULL)) != 0) + errc(1, r, "pthread_join"); + if ((r = pthread_join(pth2, NULL)) != 0) + errc(1, r, "pthread_join"); + + return (0); +} From owner-svn-src-user@freebsd.org Tue Nov 20 09:35:39 2018 Return-Path: Delivered-To: svn-src-user@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 033A111078FB for ; Tue, 20 Nov 2018 09:35:39 +0000 (UTC) (envelope-from pho@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 978CE82D3B; Tue, 20 Nov 2018 09:35:38 +0000 (UTC) (envelope-from pho@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 5EB4C786F; Tue, 20 Nov 2018 09:35:38 +0000 (UTC) (envelope-from pho@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id wAK9Zc11068921; Tue, 20 Nov 2018 09:35:38 GMT (envelope-from pho@FreeBSD.org) Received: (from pho@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id wAK9ZcJv068920; Tue, 20 Nov 2018 09:35:38 GMT (envelope-from pho@FreeBSD.org) Message-Id: <201811200935.wAK9ZcJv068920@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: pho set sender to pho@FreeBSD.org using -f From: Peter Holm Date: Tue, 20 Nov 2018 09:35:38 +0000 (UTC) To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r340667 - user/pho/stress2/misc X-SVN-Group: user X-SVN-Commit-Author: pho X-SVN-Commit-Paths: user/pho/stress2/misc X-SVN-Commit-Revision: 340667 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 978CE82D3B X-Spamd-Result: default: False [0.67 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_SPAM_MEDIUM(0.09)[0.089,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US]; NEURAL_SPAM_SHORT(0.60)[0.597,0]; NEURAL_HAM_LONG(-0.02)[-0.019,0] X-Rspamd-Server: mx1.freebsd.org X-BeenThere: svn-src-user@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the experimental " user" src tree" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Nov 2018 09:35:39 -0000 Author: pho Date: Tue Nov 20 09:35:37 2018 New Revision: 340667 URL: https://svnweb.freebsd.org/changeset/base/340667 Log: Added a kevent(2) test scenario. Submitted by: Mark Johnston Sponsored by: Dell EMC Isilon Added: user/pho/stress2/misc/kevent14.sh (contents, props changed) Added: user/pho/stress2/misc/kevent14.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/kevent14.sh Tue Nov 20 09:35:37 2018 (r340667) @@ -0,0 +1,77 @@ +#!/bin/sh + +# +# SPDX-License-Identifier: BSD-2-Clause-FreeBSD +# +# Copyright (c) 2018 Dell EMC Isilon +# +# 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. +# +# $FreeBSD$ +# +# "panic: Bad tailq NEXT(0xfffff815a589e238->tqh_last) != NULL" seen. +# https://people.freebsd.org/~pho/stress/log/kevent14.txt + +# Test scenario by: Mark Johnston + +cat > /tmp/kevent14.c < + +#include +#include +#include + +int +main(void) +{ + struct kevent ev[2]; + time_t start; + int kq, ret; + + kq = kqueue(); + if (kq < 0) + err(1, "kqueue"); + + EV_SET(&ev[0], 42, EVFILT_TIMER, EV_ADD | EV_ENABLE | EV_ONESHOT, 0, + 0, 0); + + start = time(NULL); + while (time(NULL) - start < 120) { + ret = kevent(kq, &ev[0], 1, &ev[1], 1, NULL); + if (ret < 0) + err(1, "kevent"); + if (ret == 0) + errx(1, "no events"); + if (ret == 1 && (ev[1].flags & EV_ERROR) != 0) + errc(1, ev[1].data, "kevent"); + } + + return (0); +} +EOF +cc -o /tmp/kevent14 -Wall -Wextra -g -O2 /tmp/kevent14.c +rm /tmp/kevent14.c + +/tmp/kevent14 + +rm -f /tmp/kevent14 +exit 0