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-rwxr-xr-xscripts/zloop.sh358
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diff --git a/scripts/zloop.sh b/scripts/zloop.sh
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-#!/usr/bin/env bash
-# SPDX-License-Identifier: CDDL-1.0
-
-#
-# CDDL HEADER START
-#
-# This file and its contents are supplied under the terms of the
-# Common Development and Distribution License ("CDDL"), version 1.0.
-# You may only use this file in accordance with the terms of version
-# 1.0 of the CDDL.
-#
-# A full copy of the text of the CDDL should have accompanied this
-# source. A copy of the CDDL is also available via the Internet at
-# http://www.illumos.org/license/CDDL.
-#
-# CDDL HEADER END
-#
-
-#
-# Copyright (c) 2015 by Delphix. All rights reserved.
-# Copyright (C) 2016 Lawrence Livermore National Security, LLC.
-# Copyright (c) 2017, Intel Corporation.
-#
-
-BASE_DIR=${0%/*}
-SCRIPT_COMMON=common.sh
-if [[ -f "${BASE_DIR}/${SCRIPT_COMMON}" ]]; then
- . "${BASE_DIR}/${SCRIPT_COMMON}"
-else
- echo "Missing helper script ${SCRIPT_COMMON}" && exit 1
-fi
-
-# shellcheck disable=SC2034
-PROG=zloop.sh
-GDB=${GDB:-gdb}
-
-DEFAULTWORKDIR=/var/tmp
-DEFAULTCOREDIR=/var/tmp/zloop
-
-function usage
-{
- cat >&2 <<EOF
-
-$0 [-hl] [-c <dump directory>] [-f <vdev directory>]
- [-m <max core dumps>] [-s <vdev size>] [-t <timeout>]
- [-I <max iterations>] [-- [extra ztest parameters]]
-
- This script runs ztest repeatedly with randomized arguments.
- If a crash is encountered, the ztest logs, any associated
- vdev files, and core file (if one exists) are moved to the
- output directory ($DEFAULTCOREDIR by default). Any options
- after the -- end-of-options marker will be passed to ztest.
-
- Options:
- -c Specify a core dump directory to use.
- -f Specify working directory for ztest vdev files.
- -h Print this help message.
- -l Create 'ztest.core.N' symlink to core directory.
- -m Max number of core dumps to allow before exiting.
- -s Size of vdev devices.
- -t Total time to loop for, in seconds. If not provided,
- zloop runs forever.
- -I Max number of iterations to loop before exiting.
-
-EOF
-}
-
-function or_die
-{
- if ! "$@"; then
- echo "Command failed: $*"
- exit 1
- fi
-}
-
-case $(uname) in
-FreeBSD)
- coreglob="z*.core"
- ;;
-Linux)
- # core file helpers
- read -r origcorepattern </proc/sys/kernel/core_pattern
- coreglob="$(grep -E -o '^([^|%[:space:]]*)' /proc/sys/kernel/core_pattern)*"
-
- if [[ $coreglob = "*" ]]; then
- echo "Setting core file pattern..."
- echo "core" > /proc/sys/kernel/core_pattern
- coreglob="$(grep -E -o '^([^|%[:space:]]*)' \
- /proc/sys/kernel/core_pattern)*"
- fi
- ;;
-*)
- exit 1
- ;;
-esac
-
-function core_file
-{
- # shellcheck disable=SC2012,SC2086
- ls -tr1 $coreglob 2>/dev/null | head -1
-}
-
-function core_prog
-{
- # shellcheck disable=SC2154
- prog=$ZTEST
- core_id=$($GDB --batch -c "$1" | grep "Core was generated by" | \
- tr \' ' ')
- if [[ "$core_id" == *"zdb "* ]]; then
- # shellcheck disable=SC2154
- prog=$ZDB
- fi
- printf "%s" "$prog"
-}
-
-function store_core
-{
- core="$(core_file)"
- if [[ $ztrc -ne 0 ]] || [[ -f "$core" ]]; then
- df -h "$workdir" >>ztest.out
- coreid=$(date "+zloop-%y%m%d-%H%M%S")
- foundcrashes=$((foundcrashes + 1))
-
- # zdb debugging
- zdbcmd="$ZDB -U "$workdir/zpool.cache" -dddMmDDG ztest"
- zdbdebug=$($zdbcmd 2>&1)
- echo -e "$zdbcmd\n" >>ztest.zdb
- echo "$zdbdebug" >>ztest.zdb
-
- dest=$coredir/$coreid
- or_die mkdir -p "$dest/vdev"
-
- if [[ $symlink -ne 0 ]]; then
- or_die ln -sf "$dest" "ztest.core.${foundcrashes}"
- fi
-
- echo "*** ztest crash found - moving logs to $dest"
-
- or_die mv ztest.history ztest.zdb ztest.out "$dest/"
- or_die mv "$workdir/"ztest* "$dest/vdev/"
-
- if [[ -e "$workdir/zpool.cache" ]]; then
- or_die mv "$workdir/zpool.cache" "$dest/vdev/"
- fi
-
- # check for core
- if [[ -f "$core" ]]; then
- coreprog=$(core_prog "$core")
- coredebug=$($GDB --batch --quiet \
- -ex "set print thread-events off" \
- -ex "printf \"*\n* Backtrace \n*\n\"" \
- -ex "bt" \
- -ex "printf \"*\n* Libraries \n*\n\"" \
- -ex "info sharedlib" \
- -ex "printf \"*\n* Threads (full) \n*\n\"" \
- -ex "info threads" \
- -ex "printf \"*\n* Backtraces \n*\n\"" \
- -ex "thread apply all bt" \
- -ex "printf \"*\n* Backtraces (full) \n*\n\"" \
- -ex "thread apply all bt full" \
- -ex "quit" "$coreprog" "$core" 2>&1 | \
- grep -v "New LWP")
-
- # Dump core + logs to stored directory
- echo "$coredebug" >>"$dest/ztest.gdb"
- or_die mv "$core" "$dest/"
-
- # Record info in cores logfile
- echo "*** core @ $coredir/$coreid/$core:" | \
- tee -a ztest.cores
- fi
-
- if [[ $coremax -gt 0 ]] &&
- [[ $foundcrashes -ge $coremax ]]; then
- echo "exiting... max $coremax allowed cores"
- exit 1
- else
- echo "continuing..."
- fi
- fi
-}
-
-# parse arguments
-# expected format: zloop [-t timeout] [-c coredir] [-- extra ztest args]
-coredir=$DEFAULTCOREDIR
-basedir=$DEFAULTWORKDIR
-rundir="zloop-run"
-timeout=0
-size="512m"
-coremax=0
-symlink=0
-iterations=0
-while getopts ":ht:m:I:s:c:f:l" opt; do
- case $opt in
- t ) [[ $OPTARG -gt 0 ]] && timeout=$OPTARG ;;
- m ) [[ $OPTARG -gt 0 ]] && coremax=$OPTARG ;;
- I ) [[ -n $OPTARG ]] && iterations=$OPTARG ;;
- s ) [[ -n $OPTARG ]] && size=$OPTARG ;;
- c ) [[ -n $OPTARG ]] && coredir=$OPTARG ;;
- f ) [[ -n $OPTARG ]] && basedir=$(readlink -f "$OPTARG") ;;
- l ) symlink=1 ;;
- h ) usage
- exit 2
- ;;
- * ) echo "Invalid argument: -$OPTARG";
- usage
- exit 1
- esac
-done
-# pass remaining arguments on to ztest
-shift $((OPTIND - 1))
-
-# enable core dumps
-ulimit -c unlimited
-export ASAN_OPTIONS=abort_on_error=true:halt_on_error=true:allocator_may_return_null=true:disable_coredump=false:detect_stack_use_after_return=true
-export UBSAN_OPTIONS=abort_on_error=true:halt_on_error=true:print_stacktrace=true
-
-if [[ -f "$(core_file)" ]]; then
- echo -n "There's a core dump here you might want to look at first... "
- core_file
- echo
- exit 1
-fi
-
-if [[ ! -d $coredir ]]; then
- echo "core dump directory ($coredir) does not exist, creating it."
- or_die mkdir -p "$coredir"
-fi
-
-if [[ ! -w $coredir ]]; then
- echo "core dump directory ($coredir) is not writable."
- exit 1
-fi
-
-or_die rm -f ztest.history ztest.zdb ztest.cores
-
-ztrc=0 # ztest return value
-foundcrashes=0 # number of crashes found so far
-starttime=$(date +%s)
-curtime=$starttime
-iteration=0
-
-# if no timeout was specified, loop forever.
-while (( timeout == 0 )) || (( curtime <= (starttime + timeout) )); do
- if (( iterations > 0 )) && (( iteration++ == iterations )); then
- break
- fi
-
- zopt="-G -VVVVV"
-
- # start each run with an empty directory
- workdir="$basedir/$rundir"
- or_die rm -rf "$workdir"
- or_die mkdir "$workdir"
-
- # ashift range 9 - 15
- align=$(((RANDOM % 2) * 3 + 9))
-
- # choose parity value
- parity=$(((RANDOM % 3) + 1))
-
- draid_data=0
- draid_spares=0
-
- # randomly use special classes
- class="special=random"
-
- # choose between four types of configs
- # (basic, raidz mix, raidz expansion, and draid mix)
- case $((RANDOM % 4)) in
-
- # basic mirror configuration
- 0) parity=1
- mirrors=2
- raid_children=0
- vdevs=2
- raid_type="raidz"
- ;;
-
- # fully randomized mirror/raidz (sans dRAID)
- 1) mirrors=$(((RANDOM % 3) * 1))
- raid_children=$((((RANDOM % 9) + parity + 1) * (RANDOM % 2)))
- vdevs=$(((RANDOM % 3) + 3))
- raid_type="raidz"
- ;;
-
- # randomized raidz expansion (one top-level raidz vdev)
- 2) mirrors=0
- vdevs=1
- # derive initial raidz disk count based on parity choice
- # P1: 3 - 7 disks
- # P2: 5 - 9 disks
- # P3: 7 - 11 disks
- raid_children=$(((RANDOM % 5) + (parity * 2) + 1))
-
- # 1/3 of the time use a dedicated '-X' raidz expansion test
- if [[ $((RANDOM % 3)) -eq 0 ]]; then
- zopt="$zopt -X -t 16"
- raid_type="raidz"
- else
- raid_type="eraidz"
- fi
- ;;
-
- # fully randomized dRAID (sans mirror/raidz)
- 3) mirrors=0
- draid_data=$(((RANDOM % 8) + 3))
- draid_spares=$(((RANDOM % 2) + parity))
- stripe=$((draid_data + parity))
- extra=$((draid_spares + (RANDOM % 4)))
- raid_children=$(((((RANDOM % 4) + 1) * stripe) + extra))
- vdevs=$((RANDOM % 3))
- raid_type="draid"
- ;;
- *)
- # avoid shellcheck SC2249
- ;;
- esac
-
- zopt="$zopt -K $raid_type"
- zopt="$zopt -m $mirrors"
- zopt="$zopt -r $raid_children"
- zopt="$zopt -D $draid_data"
- zopt="$zopt -S $draid_spares"
- zopt="$zopt -R $parity"
- zopt="$zopt -v $vdevs"
- zopt="$zopt -a $align"
- zopt="$zopt -C $class"
- zopt="$zopt -s $size"
- zopt="$zopt -f $workdir"
-
- cmd="$ZTEST $zopt $*"
- echo "$(date '+%m/%d %T') $cmd" | tee -a ztest.history ztest.out
- $cmd >>ztest.out 2>&1
- ztrc=$?
- grep -E '===|WARNING' ztest.out >>ztest.history
-
- store_core
-
- curtime=$(date +%s)
-done
-
-echo "zloop finished, $foundcrashes crashes found"
-
-# restore core pattern.
-case $(uname) in
-Linux)
- echo "$origcorepattern" > /proc/sys/kernel/core_pattern
- ;;
-*)
- ;;
-esac
-
-uptime >>ztest.out
-
-if [[ $foundcrashes -gt 0 ]]; then
- exit 1
-fi
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-08 16:46:57 +0000