1#!/bin/sh 2 3# 4# SPDX-License-Identifier: BSD-2-Clause-FreeBSD 5# 6# Copyright (c) 2021 Peter Holm <pho@FreeBSD.org> 7# 8# Redistribution and use in source and binary forms, with or without 9# modification, are permitted provided that the following conditions 10# are met: 11# 1. Redistributions of source code must retain the above copyright 12# notice, this list of conditions and the following disclaimer. 13# 2. Redistributions in binary form must reproduce the above copyright 14# notice, this list of conditions and the following disclaimer in the 15# documentation and/or other materials provided with the distribution. 16# 17# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27# SUCH DAMAGE. 28# 29 30# No problems seen 31 32# fsync: giving up on dirty 0xc9659438: tag devfs, type VCHR 33# usecount 1, writecount 0, refcount 41 mountedhere 0xc96a2000 34# flags (VI_ACTIVE) 35# v_object 0xc9824aa0 ref 0 pages 355 cleanbuf 37 dirtybuf 2 36# lock type devfs: EXCL by thread 0xccbca6a0 (pid 42225, dd, tid 100234) 37# #0 0xc0c26533 at __lockmgr_args+0xae3 38# #1 0xc0d06cc3 at vop_stdlock+0x53 39# #2 0xc1212cc0 at VOP_LOCK1_APV+0xe0 40# #3 0xc0d2b24a at _vn_lock+0xba 41# #4 0xc0f3f22b at ffs_sync+0x34b 42# #5 0xc0f22343 at softdep_ast_cleanup_proc+0x213 43# #6 0xc0ca7fbb at userret+0x1ab 44# #7 0xc11e0618 at syscall+0x5e8 45# #8 0xc11cb09e at Xint0x80_syscall+0x2e 46# dev label/tmp 47 48. ../default.cfg 49 50[ -d $RUNDIR ] || mkdir -p $RUNDIR && 51 find $RUNDIR -name "split.*" -delete 52export LANG=C 53s=0 54kfree=`df -k $RUNDIR | tail -1 | awk '{print $4}'` 55[ $kfree -gt 100 ] && kfree=$((kfree - 100)) 56parallel=$((`sysctl -n hw.ncpu` + 1)) 57parallel=2 58cap=$((9 * 1024 * 1024)) # 9GB 59mx=$((kfree / parallel / 2)) 60[ $mx -gt $cap ] && mx=$cap 61 62run() { 63 local blocks md5 md5a orig s spmax spmin 64 65 s=0 66 cd $RUNDIR 67 blocks=`jot -r 1 1 $mx` 68 dd if=/dev/random of=file.$1 bs=1023 count=$blocks status=none 69 orig=`ls -l file.$1 | tail -1` 70 md5=`md5 -q file.$1` 71 spmin=$((1023 * 4)) 72 spmax=$((1023 * blocks / 2)) 73 rm -f split.$1.* 74 split -a 4 -b `jot -r 1 $spmin $spmax` file.$1 split.$1. 75 rm file.$1 76 cat split.$1.* > file.$1 77 rm split.$1.* 78 md5a=`md5 -q file.$1` 79 if [ $md5 != $md5a ]; then 80 echo FAIL 81 echo "orig $orig $md5" 82 orig=`ls -l file.$1 | tail -1` 83 echo "new $orig $md5a" 84 s=1 85 fi 86 rm file.$1 87 return $s 88 89} 90 91for i in `jot $parallel`; do 92 run $i & 93 pids="$pids $!" 94done 95for pid in $pids; do 96 wait $pid 97 [ $? -ne 0 ] && s=1 98done 99exit $s 100