Date: Tue, 3 Mar 2020 10:02:58 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r358571 - user/pho/stress2/misc Message-ID: <202003031002.023A2wa4053375@repo.freebsd.org>
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Author: pho Date: Tue Mar 3 10:02:58 2020 New Revision: 358571 URL: https://svnweb.freebsd.org/changeset/base/358571 Log: Added new tests all marked as "no run" for now. Added: user/pho/stress2/misc/force.sh (contents, props changed) user/pho/stress2/misc/force2.sh (contents, props changed) user/pho/stress2/misc/force3.sh (contents, props changed) user/pho/stress2/misc/force4.sh (contents, props changed) user/pho/stress2/misc/force5.sh (contents, props changed) user/pho/stress2/misc/getrandom2.sh (contents, props changed) Modified: user/pho/stress2/misc/all.sh Modified: user/pho/stress2/misc/all.sh ============================================================================== --- user/pho/stress2/misc/all.sh Tue Mar 3 09:51:53 2020 (r358570) +++ user/pho/stress2/misc/all.sh Tue Mar 3 10:02:58 2020 (r358571) @@ -42,10 +42,16 @@ # collapse.sh panic: freeing mapped page 0xfffffe0028ed1d50 20200106 # dd.sh CAM stuck in vmwait 20200116 # devfs4.sh WiP 20181031 +# force.sh WiP 20200303 +# force2.sh WiP 20200303 +# force3.sh WiP 20200303 +# force4.sh Known issue 20200303 +# force5.sh WiP 20200303 # fsync.sh panic: Journal overflow 20190208 # fuse.sh Memory corruption seen in log file kostik734.txt 20141114 # fuse2.sh Deadlock seen 20121129 # fuse3.sh Deadlock seen 20141120 +# getrandom2.sh Known DoS issue 20200302 # gjournal.sh panic: Journal overflow 20190626 # gjournal2.sh panic: Journal overflow 20180125 # gjournal3.sh panic: Bio not on queue 20171225 Added: user/pho/stress2/misc/force.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/force.sh Tue Mar 3 10:02:58 2020 (r358571) @@ -0,0 +1,68 @@ +#!/bin/sh + +# +# SPDX-License-Identifier: BSD-2-Clause-FreeBSD +# +# Copyright (c) 2020 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. +# +# $FreeBSD$ +# + +# "mdconfig -o force" test scenario. +# Run with marcus.cfg on a 1g swap backed MD with UFS SU fs. + +# Page fault seen in WiP kernel code: +# https://people.freebsd.org/~pho/stress/log/kirk113.txt + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 +. ../default.cfg + +mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint +mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart +mdconfig -a -t swap -s 1g -u $mdstart +flags=$newfs_flags +[ `jot -r 1 0 1` -eq 1 ] && flags="-j" +echo "newfs $flags md$mdstart" +newfs $flags md$mdstart > /dev/null +mount /dev/md$mdstart $mntpoint +chmod 777 $mntpoint + +export runRUNTIME=3m +export RUNDIR=$mntpoint/stressX + +su $testuser -c 'cd ..; ./run.sh marcus.cfg' > /dev/null 2>&1 & + +sleep `jot -r 1 10 40` +while mdconfig -l | grep md$mdstart; do + mdconfig -d -u $mdstart -o force || sleep 1 +done +sleep 1 +../tools/killall.sh +wait +n=0 +while mount | grep $mntpoint | grep -q /dev/md; do + umount $mntpoint || sleep 1 + [ $((n += 1)) -gt 300 ] && { echo FAIL; exit 1; } +done +exit $s Added: user/pho/stress2/misc/force2.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/force2.sh Tue Mar 3 10:02:58 2020 (r358571) @@ -0,0 +1,78 @@ +#!/bin/sh + +# +# SPDX-License-Identifier: BSD-2-Clause-FreeBSD +# +# Copyright (c) 2020 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. +# +# $FreeBSD$ +# + +# "mdconfig -o force" test scenario. +# Run with marcus.cfg on a 1g swap backed MD with UFS SU fs. + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 + +. ../default.cfg + +mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint +mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart +dd if=/dev/zero of=$diskimage bs=1m count=1k status=none || exit 1 +mdconfig -a -t vnode -f $diskimage -u $mdstart +flags=$newfs_flags +[ `jot -r 1 0 1` -eq 1 ] && flags="-j" +echo "newfs $flags md$mdstart" +newfs $flags md$mdstart > /dev/null +mount /dev/md$mdstart $mntpoint +chmod 777 $mntpoint + +export runRUNTIME=3m +export RUNDIR=$mntpoint/stressX + +su $testuser -c 'cd ..; ./run.sh marcus.cfg' > /dev/null 2>&1 & + +sleep `jot -r 1 10 40` +while mdconfig -l | grep md$mdstart; do + mdconfig -d -u $mdstart -o force || sleep 1 +done +sleep 1 +../tools/killall.sh +wait +n=0 +while mount | grep $mntpoint | grep -q /dev/md; do + umount $mntpoint || sleep 1 + [ $((n += 1)) -gt 300 ] && { echo FAIL; exit 1; } +done + +mdconfig -a -t vnode -f $diskimage -u $mdstart +fsck_ffs -Rfy /dev/md$mdstart > /dev/null; s=$? +if [ $s -eq 0 ]; then + mount /dev/md$mdstart $mntpoint + ls -lR $mntpoint > /dev/null + umount $mntpoint +fi +mdconfig -d -u $mdstart + +rm -f $diskimage +exit $s Added: user/pho/stress2/misc/force3.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/force3.sh Tue Mar 3 10:02:58 2020 (r358571) @@ -0,0 +1,68 @@ +#!/bin/sh + +# +# SPDX-License-Identifier: BSD-2-Clause-FreeBSD +# +# Copyright (c) 2020 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. +# +# $FreeBSD$ +# + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 + +# "mdconfig -o force" test scenario. +# Copy of force.sh with an added "umount -f" +# Spin seen in umount() with WiP kernel code. + +. ../default.cfg + +mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint +mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart +mdconfig -a -t swap -s 1g -u $mdstart +flags=$newfs_flags +[ `jot -r 1 0 1` -eq 1 ] && flags="-j" +echo "newfs $flags md$mdstart" +newfs $flags md$mdstart > /dev/null +mount /dev/md$mdstart $mntpoint +chmod 777 $mntpoint + +export runRUNTIME=3m +export RUNDIR=$mntpoint/stressX + +su $testuser -c 'cd ..; ./run.sh marcus.cfg' > /dev/null 2>&1 & + +sleep `jot -r 1 10 40` +while mdconfig -l | grep md$mdstart; do + mdconfig -d -u $mdstart -o force || sleep 1 +done +sleep .`jot -r 1 1 9` +umount -f $mntpoint +../tools/killall.sh +wait +n=0 +while mount | grep $mntpoint | grep -q /dev/md; do + umount $mntpoint || sleep 1 + [ $((n += 1)) -gt 300 ] && { echo FAIL; exit 1; } +done +exit $s Added: user/pho/stress2/misc/force4.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/force4.sh Tue Mar 3 10:02:58 2020 (r358571) @@ -0,0 +1,91 @@ +#!/bin/sh + +# +# SPDX-License-Identifier: BSD-2-Clause-FreeBSD +# +# Copyright (c) 2020 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. +# +# $FreeBSD$ +# + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 + +# "mdconfig -o force" test scenario with nullfs. + +. ../default.cfg + +mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint +mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart +mdconfig -a -t swap -s 1g -u $mdstart +flags=$newfs_flags +[ `jot -r 1 0 1` -eq 1 ] && flags="-j" +echo "newfs $flags md$mdstart" +newfs $flags md$mdstart > /dev/null +mount /dev/md$mdstart $mntpoint +chmod 777 $mntpoint + +mp2=${mntpoint}2 +mkdir -p $mp2 +mount -t nullfs $mntpoint $mp2 || exit 1 + +export LOAD=80 +export MAXSWAPPCT=80 +export RUNDIR=$mp2/stressX +export runRUNTIME=3m +export rwLOAD=80 +export TESTPROGS=' +testcases/lockf2/lockf2 +testcases/symlink/symlink +testcases/openat/openat +testcases/socket/socket +testcases/rw/rw +testcases/mmap/mmap +testcases/fts/fts +testcases/link/link +testcases/lockf/lockf +testcases/creat/creat +testcases/mkdir/mkdir +testcases/rename/rename +testcases/swap/swap +testcases/mkfifo/mkfifo +testcases/dirnprename/dirnprename +testcases/dirrename/dirrename +' + +su $testuser -c 'cd ..; ./testcases/run/run $TESTPROGS' > /dev/null 2>&1 & + +sleep `jot -r 1 20 60` +while mdconfig -l | grep md$mdstart; do + mdconfig -d -u $mdstart -o force || sleep 1 +done +sleep 1 +../tools/killall.sh +wait +umount $mp2 +n=0 +while mount | grep $mntpoint | grep -q /dev/md; do + umount $mntpoint || sleep 1 + [ $((n += 1)) -gt 300 ] && { echo FAIL; exit 1; } +done +exit $s Added: user/pho/stress2/misc/force5.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/force5.sh Tue Mar 3 10:02:58 2020 (r358571) @@ -0,0 +1,76 @@ +#!/bin/sh + +# +# SPDX-License-Identifier: BSD-2-Clause-FreeBSD +# +# Copyright (c) 2020 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. +# +# $FreeBSD$ +# + +# "mdconfig -o force" test scenario. +# Rename focus + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 + +. ../default.cfg + +mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint +mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart +mdconfig -a -t swap -s 1g -u $mdstart +flags=$newfs_flags +[ `jot -r 1 0 1` -eq 1 ] && flags="-j" +echo "newfs $flags md$mdstart" +newfs $flags md$mdstart > /dev/null +mount /dev/md$mdstart $mntpoint +chmod 777 $mntpoint + +export LOAD=80 +export MAXSWAPPCT=80 +export RUNDIR=$mntpoint/stressX +export runRUNTIME=3m +export rwLOAD=80 +export TESTPROGS=' +testcases/fts/fts +testcases/rename/rename +testcases/swap/swap +testcases/dirnprename/dirnprename +testcases/dirrename/dirrename +' + +su $testuser -c 'cd ..; ./testcases/run/run $TESTPROGS' > /dev/null 2>&1 & + +sleep `jot -r 1 20 60` +while mdconfig -l | grep md$mdstart; do + mdconfig -d -u $mdstart -o force || sleep 1 +done +sleep 1 +../tools/killall.sh +wait +n=0 +while mount | grep $mntpoint | grep -q /dev/md; do + umount $mntpoint || sleep 1 + [ $((n += 1)) -gt 300 ] && { echo FAIL; exit 1; } +done +exit $s Added: user/pho/stress2/misc/getrandom2.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/getrandom2.sh Tue Mar 3 10:02:58 2020 (r358571) @@ -0,0 +1,190 @@ +#!/bin/sh + +# +# SPDX-License-Identifier: BSD-2-Clause-FreeBSD +# +# Copyright (c) 2020 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. +# +# $FreeBSD$ +# + +# getrandom(2) DoS scenario. + +# panic: pmap_growkernel: no memory to grow kernel +# cpuid = 8 +# time = 1582102582 +# KDB: stack backtrace: +# db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe03e6992450 +# vpanic() at vpanic+0x185/frame 0xfffffe03e69924b0 +# panic() at panic+0x43/frame 0xfffffe03e6992510 +# pmap_growkernel() at pmap_growkernel+0x2d4/frame 0xfffffe03e6992550 +# vm_map_insert() at vm_map_insert+0x296/frame 0xfffffe03e69925f0 +# vm_map_find() at vm_map_find+0x617/frame 0xfffffe03e69926d0 +# kva_import() at kva_import+0x3c/frame 0xfffffe03e6992710 +# vmem_try_fetch() at vmem_try_fetch+0xde/frame 0xfffffe03e6992760 +# vmem_xalloc() at vmem_xalloc+0x4bb/frame 0xfffffe03e69927e0 +# kva_import_domain() at kva_import_domain+0x36/frame 0xfffffe03e6992810 +# vmem_try_fetch() at vmem_try_fetch+0xde/frame 0xfffffe03e6992860 +# vmem_xalloc() at vmem_xalloc+0x4bb/frame 0xfffffe03e69928e0 +# vmem_alloc() at vmem_alloc+0x8a/frame 0xfffffe03e6992930 +# kmem_malloc_domainset() at kmem_malloc_domainset+0x92/frame 0xfffffe03e69929a0 +# malloc() at malloc+0x162/frame 0xfffffe03e69929f0 +# read_random_uio() at read_random_uio+0xa5/frame 0xfffffe03e6992a40 +# sys_getrandom() at sys_getrandom+0x7b/frame 0xfffffe03e6992ac0 +# amd64_syscall() at amd64_syscall+0x183/frame 0xfffffe03e6992bf0 +# fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe03e6992bf0 +# --- syscall (563, FreeBSD ELF64, sys_getrandom), rip = 0x80041899a, rsp = 0x7ffffffc3cb8, rbp = 0x7ffffffc3cd0 --- +# KDB: enter: panic +# [ thread pid 12095 tid 186584 ] +# Stopped at kdb_enter+0x37: movq $0,0x1084916(%rip) +# db> x/s version +# version: FreeBSD 13.0-CURRENT #0 r358094: Wed Feb 19 06:25:16 CET 2020\012 pho@t2.osted.lan:/usr/src/sys/amd64/compile/PHO\012 +# db> + +. ../default.cfg + +dir=/tmp +odir=`pwd` +cd $dir +sed '1,/^EOF/d' < $odir/$0 > $dir/getrandom2.c +mycc -o getrandom2 -Wall -Wextra -O0 -g getrandom2.c || exit 1 +rm -f getrandom2.c +cd $odir + +cd /tmp +$dir/getrandom2 +s=$? +[ -f getrandom2.core -a $s -eq 0 ] && + { ls -l getrandom2.core; s=1; } +cd $odir + +rm -rf $dir/getrandom2 +exit $s + +EOF +#include <sys/param.h> +#include <sys/mman.h> +#include <sys/random.h> +#include <sys/resource.h> +#include <sys/stat.h> +#include <sys/sysctl.h> +#include <sys/wait.h> + +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <stdatomic.h> +#include <stdio.h> +#include <stdlib.h> +#include <time.h> +#include <unistd.h> + +static size_t mx; +static _Atomic(int) *share; +static int parallel; +static char *bp; + +#define PARALLEL 40000 /* Arbitrary cap */ +#define SYNC 0 + +static void +test(void) +{ + int i; + + alarm(180); + (void)atomic_fetch_add(&share[SYNC], 1); + while (atomic_load(&share[SYNC]) != parallel) + usleep(200000); + for (i = 0; i < 10; i++) + getrandom(bp, mx, 0); +// close(66); + + _exit(0); +} + +int +main(void) +{ + pid_t *pids; + struct rlimit rlp; + size_t len; + size_t f, vsz; + u_int pages; + int e, i, status; + + e = 0; + len = PAGE_SIZE; + if ((share = mmap(NULL, len, PROT_READ | PROT_WRITE, + MAP_ANON | MAP_SHARED, -1, 0)) == MAP_FAILED) + err(1, "mmap"); + + if (getrlimit(RLIMIT_NPROC, &rlp) < 0) + err(1, "getrlimit"); + parallel = rlp.rlim_cur / 100 * 80; + if (parallel > PARALLEL) + parallel = PARALLEL; + pids = calloc(parallel, sizeof(pid_t)); + + vsz = sizeof(pages); + if (sysctlbyname("vm.stats.vm.v_free_count", &pages, &vsz, NULL, 0) != 0) + err(1, "sysctl(vm.stats.vm.v_free_count)"); + f = pages; + f *= PAGE_SIZE; + + if (getrlimit(RLIMIT_DATA, &rlp) < 0) + err(1,"getrlimit"); + mx = rlp.rlim_cur; + if (mx > f / parallel) + mx = f / parallel; + if ((bp = mmap(NULL, mx, PROT_READ | PROT_WRITE, MAP_ANON, -1, + 0)) == MAP_FAILED) + err(1, "mmap"); + for (;;) { + if (getrandom(bp, mx, 0) != -1) + break; + mx = mx / 2; + } + printf("Max getrandom() buffer size is %zu, %d threads\n", mx, + parallel); + for (i = 0; i < parallel; i++) { + if ((pids[i] = fork()) == 0) + test(); + if (pids[i] == -1) + err(1, "fork()"); + } + for (i = 0; i < parallel; i++) { + if (waitpid(pids[i], &status, 0) == -1) + err(1, "waitpid(%d)", pids[i]); + if (status != 0) { + if (WIFSIGNALED(status)) + fprintf(stderr, + "pid %d exit signal %d\n", + pids[i], WTERMSIG(status)); + } + e += status == 0 ? 0 : 1; + } + + return (e); +}
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