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OpenZFS 6880 - zdb incorrectly reports feature count mismatch when feature is disabled

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Authored by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Prakash Surya <prakash.surya@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Ported-by: George Melikov <mail@gmelikov.ru>

OpenZFS-issue: https://www.illumos.org/issues/6880
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/c5d1600
Closes #5641
This commit is contained in:
George Melikov 2017-01-24 19:59:08 +03:00 committed by Brian Behlendorf
parent e82dbae1ee
commit a39ce90660
4 changed files with 56 additions and 3 deletions
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3
cmd/zdb/zdb.c
View File

@ -3162,7 +3162,8 @@ dump_zpool(spa_t *spa)
uint64_t refcount;
if (!(spa_feature_table[f].fi_flags &
ZFEATURE_FLAG_PER_DATASET)) {
ZFEATURE_FLAG_PER_DATASET) ||
!spa_feature_is_enabled(spa, f)) {
ASSERT0(dataset_feature_count[f]);
continue;
}

2
tests/runfiles/linux.run
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@ -71,7 +71,7 @@ tests = [ 'clean_mirror_001_pos', 'clean_mirror_002_pos',
'clean_mirror_003_pos', 'clean_mirror_004_pos']
[tests/functional/cli_root/zdb]
tests = ['zdb_001_neg']
tests = ['zdb_001_neg', 'zdb_002_pos']
pre =
post =

3
tests/zfs-tests/tests/functional/cli_root/zdb/Makefile.am
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@ -1,3 +1,4 @@
pkgdatadir = $(datadir)/@PACKAGE@/zfs-tests/tests/functional/cli_root/zdb
dist_pkgdata_SCRIPTS = \
zdb_001_neg.ksh
zdb_001_neg.ksh \
zdb_002_pos.ksh

51
tests/zfs-tests/tests/functional/cli_root/zdb/zdb_002_pos.ksh Executable file
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@ -0,0 +1,51 @@
#!/bin/ksh
#
# 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) 2015 by Delphix. All rights reserved.
#
. $STF_SUITE/include/libtest.shlib
#
# Description:
# zdb will accurately count the feature refcount for pools with and without
# features enabled.
#
# Strategy:
# 1. Create a pool, and collect zdb output for the pool.
# 2. Verify there are no 'feature refcount mismatch' messages.
# 3. Repeat for a pool with features disabled.
#
log_assert "Verify zdb accurately counts feature refcounts."
log_onexit cleanup
typeset errstr="feature refcount mismatch"
typeset tmpfile="/var/tmp/zdb-feature-mismatch"
function cleanup
{
datasetexists $TESTPOOL && destroy_pool $TESTPOOL
grep "$errstr" $tmpfile
rm -f $tmpfile
}
for opt in '' -d; do
log_must zpool create -f $opt $TESTPOOL ${DISKS%% *}
log_must eval "$ZDB $TESTPOOL >$tmpfile"
grep -q "$errstr" $tmpfile && \
log_fail "Found feature refcount mismatches in zdb output."
destroy_pool $TESTPOOL
done
log_pass "zdb accurately counts feature refcounts."