diff options
Diffstat (limited to 'tests/zfs-tests/tests/functional/cli_root/zfs_destroy/zfs_clone_livelist_condense_races.ksh')
| -rwxr-xr-x | tests/zfs-tests/tests/functional/cli_root/zfs_destroy/zfs_clone_livelist_condense_races.ksh | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/tests/zfs-tests/tests/functional/cli_root/zfs_destroy/zfs_clone_livelist_condense_races.ksh b/tests/zfs-tests/tests/functional/cli_root/zfs_destroy/zfs_clone_livelist_condense_races.ksh new file mode 100755 index 000000000000..453b502416ed --- /dev/null +++ b/tests/zfs-tests/tests/functional/cli_root/zfs_destroy/zfs_clone_livelist_condense_races.ksh @@ -0,0 +1,117 @@ +#!/bin/ksh -p +# +# 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. +# + +# +# Copyright (c) 2018 by Delphix. All rights reserved. +# + +# DESCRIPTION +# Test race conditions for livelist condensing + +# STRATEGY +# These tests exercise code paths that deal with a livelist being +# simultaneously condensed and deactivated (deleted, exported or disabled). +# If a variable is set, the zthr will pause until it is cancelled or waited +# and then a counter variable keeps track of whether or not the code path is +# reached. + +# 1. Deletion race: repeatedly overwrite the same file to trigger condense +# and then delete the clone. +# 2. Disable race: Overwrite enough files to trigger condenses and disabling of +# the livelist. +# 3. Export race: repeatedly overwrite the same file to trigger condense and +# then export the pool. + +. $STF_SUITE/include/libtest.shlib +. $STF_SUITE/tests/functional/cli_root/zfs_destroy/zfs_destroy_common.kshlib + +function cleanup +{ + log_must zfs destroy -Rf $TESTPOOL/$TESTFS1 + # reset the livelist sublist size to the original value + set_tunable64 LIVELIST_MAX_ENTRIES $ORIGINAL_MAX + # reset the condense tests to 0 + set_tunable32 LIVELIST_CONDENSE_ZTHR_PAUSE 0 + set_tunable32 LIVELIST_CONDENSE_SYNC_PAUSE 0 +} + +function delete_race +{ + set_tunable32 "$1" 0 + log_must zfs clone $TESTPOOL/$TESTFS1@snap $TESTPOOL/$TESTCLONE + for i in {1..5}; do + log_must zpool sync $TESTPOOL + log_must mkfile 5m /$TESTPOOL/$TESTCLONE/out + done + log_must zfs destroy $TESTPOOL/$TESTCLONE + log_must zpool sync $TESTPOOL + [[ "1" == "$(get_tunable "$1")" ]] || \ + log_fail "delete/condense race test failed" +} + +function export_race +{ + set_tunable32 "$1" 0 + log_must zfs clone $TESTPOOL/$TESTFS1@snap $TESTPOOL/$TESTCLONE + for i in {1..5}; do + log_must zpool sync $TESTPOOL + log_must mkfile 5m /$TESTPOOL/$TESTCLONE/out + done + log_must zpool export $TESTPOOL + log_must zpool import $TESTPOOL + [[ "1" == "$(get_tunable "$1")" ]] || \ + log_fail "export/condense race test failed" + log_must zfs destroy $TESTPOOL/$TESTCLONE +} + +function disable_race +{ + set_tunable32 "$1" 0 + log_must zfs clone $TESTPOOL/$TESTFS1@snap $TESTPOOL/$TESTCLONE + for i in {1..5}; do + log_must zpool sync $TESTPOOL + log_must mkfile 5m /$TESTPOOL/$TESTCLONE/out + done + # overwrite the file shared with the origin to trigger disable + log_must mkfile 100m /$TESTPOOL/$TESTCLONE/atestfile + log_must zpool sync $TESTPOOL + [[ "1" == "$(get_tunable "$1")" ]] || \ + log_fail "disable/condense race test failed" + log_must zfs destroy $TESTPOOL/$TESTCLONE +} + +ORIGINAL_MAX=$(get_tunable LIVELIST_MAX_ENTRIES) + +log_onexit cleanup + +log_must zfs create $TESTPOOL/$TESTFS1 +log_must mkfile 100m /$TESTPOOL/$TESTFS1/atestfile +log_must zpool sync $TESTPOOL +log_must zfs snapshot $TESTPOOL/$TESTFS1@snap + +# Reduce livelist size to trigger condense more easily +set_tunable64 LIVELIST_MAX_ENTRIES 20 + +# Test cancellation path in the zthr +set_tunable32 LIVELIST_CONDENSE_ZTHR_PAUSE 1 +set_tunable32 LIVELIST_CONDENSE_SYNC_PAUSE 0 +disable_race LIVELIST_CONDENSE_ZTHR_CANCEL +delete_race LIVELIST_CONDENSE_ZTHR_CANCEL +export_race LIVELIST_CONDENSE_ZTHR_CANCEL + +# Test cancellation path in the synctask +set_tunable32 LIVELIST_CONDENSE_ZTHR_PAUSE 0 +set_tunable32 LIVELIST_CONDENSE_SYNC_PAUSE 1 +disable_race LIVELIST_CONDENSE_SYNC_CANCEL +delete_race LIVELIST_CONDENSE_SYNC_CANCEL + +log_pass "Clone livelist condense race conditions passed." |