Date: Mon, 18 Nov 2024 09:40:52 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: 55aa53fbf2bb - main - stress2: Added a zfs regression test scenario Message-ID: <202411180940.4AI9eqWg020678@gitrepo.freebsd.org>
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The branch main has been updated by pho: URL: https://cgit.FreeBSD.org/src/commit/?id=55aa53fbf2bbeb7c032eae1a3767e043390a28da commit 55aa53fbf2bbeb7c032eae1a3767e043390a28da Author: Peter Holm <pho@FreeBSD.org> AuthorDate: 2024-11-18 09:40:16 +0000 Commit: Peter Holm <pho@FreeBSD.org> CommitDate: 2024-11-18 09:40:16 +0000 stress2: Added a zfs regression test scenario --- tools/test/stress2/misc/zfs18.sh | 134 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 134 insertions(+) diff --git a/tools/test/stress2/misc/zfs18.sh b/tools/test/stress2/misc/zfs18.sh new file mode 100755 index 000000000000..fb4f301f43c9 --- /dev/null +++ b/tools/test/stress2/misc/zfs18.sh @@ -0,0 +1,134 @@ +#!/bin/sh + +# File corruption scenario. +# Test program obtained from Kyle Evans <kevans@FreeBSD.org> + +# "panic: VERIFY3(rc->rc_count == number) failed (4849664 == 0)" seen. + +# Page fault seen: +# https://people.freebsd.org/~pho/stress/log/log0560.txt + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 +[ `sysctl -n kern.kstack_pages` -lt 4 ] && exit 0 + +. ../default.cfg + +prog=$(basename "$0" .sh) +cat > /tmp/$prog.c <<EOF +#include <sys/mman.h> +#include <sys/stat.h> + +#include <assert.h> +#include <err.h> +#include <fcntl.h> +#include <stdio.h> +#include <unistd.h> + +//#define FILE "2" +#define FILE "file" + +int +main(void) +{ + struct stat sb; + ssize_t wsz; + size_t bufsz; + void *buf, *obuf; + int mfd, fd; + int done = 0; + + mfd = open(FILE, O_RDONLY); + assert(mfd >= 0); + + assert(fstat(mfd, &sb) == 0); + bufsz = sb.st_size; + buf = obuf = mmap(NULL, bufsz, PROT_READ, MAP_SHARED, mfd, 0); + assert(buf != MAP_FAILED); + + /* O_RDWR */ + fd = open(FILE, O_RDWR); + if (fd < 0) + err(1, "open"); + assert(fd >= 0); + +again: + while (bufsz > 0) { + wsz = write(fd, buf, bufsz); + if (wsz < 0) + err(1, "write"); + else if (wsz == 0) + fprintf(stderr, "Huh?\n"); + bufsz -= wsz; + buf += wsz; + } + + bufsz = sb.st_size; + buf = obuf; + + if (++done < 2) + goto again; + + close(fd); + munmap(obuf, sb.st_size); + close(mfd); + return (0); +} +EOF +mycc -o /tmp/$prog -Wall -Wextra -O0 /tmp/$prog.c || exit 1 +set -u +kldstat -v | grep -q zfs.ko || { kldload zfs.ko || + exit 0; loaded=1; } + +u1=$mdstart +u2=$((u1 + 1)) +mp0=/stress2_tank/test # zfs mount + +mdconfig -l | grep -q md$u1 && mdconfig -d -u $u1 +mdconfig -l | grep -q md$u2 && mdconfig -d -u $u2 + +mdconfig -s 4g -u $u1 +mdconfig -s 4g -u $u2 + +zpool list | egrep -q "^stress2_tank" && zpool destroy stress2_tank +[ -d /stress2_tank ] && rm -rf /stress2_tank +zpool create stress2_tank raidz md$u1 md$u2 +zfs create ${mp0#/} + +here=`pwd` +cd /stress2_tank +# Optimized file creation: +#jot -b 'A' -s '' 875998989 > file +dd if=/dev/random of=file bs=1m count=$(((875998990/1024/1024)+1)) status=none +truncate -s 875998990 file +cat file file > file.post +mv file file.orig + +counter=1 +s=0 +start=`date +%s` +while [ $((`date +%s` - start)) -lt 300 ]; do + cp file.orig file + /tmp/$prog + if ! cmp file file.post; then + echo "Iteration #$counter" + od -t x8 file | head -1000 > /tmp/$prog.file1 + od -t x8 file.post | head -1000 > /tmp/$prog.file2 + diff /tmp/$prog.file1 /tmp/$prog.file2 | head -15 + rm /tmp/$prog.file1 /tmp/$prog.file2 + s=1 + break + fi + counter=$((counter + 1)) +done +cd $here + +zfs umount ${mp0#/} +zfs destroy -r stress2_tank +zpool destroy stress2_tank + +mdconfig -d -u $u2 +mdconfig -d -u $u1 +set +u +[ $loaded ] && kldunload zfs.ko +rm /tmp/$prog /tmp/$prog.c +exit $s
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