mirror_zfs/tests/test-runner/bin/zts-report.py.in
Brian Behlendorf ad8b9f940c
Scrub mirror children without BPs
When scrubbing a raidz/draid pool, which contains a replacing or
sparing mirror with multiple online children, only one child will
be read.  This is not normally a serious concern because the DTL
records are used to determine where a good copy of the data is.
As long as the data can be read from one child the mirror vdev
will use it to repair gaps in any of its children.  Furthermore,
even if the data which was read is corrupt the raidz code will
detect this and issue its own repair I/O to correct the damage
in the mirror vdev.

However, in the scenario where the DTL is wrong due to silent
data corruption (say due to overwriting one child) and the scrub
happens to read from a child with good data, then the other damaged
mirror child will not be detected nor repaired.

While this is possible for both raidz and draid vdevs, it's most
pronounced when using draid.  This is because by default the zed
will sequentially rebuild a draid pool to a distributed spare,
and the distributed spare half of the mirror is always preferred
since it delivers better performance.  This means the damaged
half of the mirror will go undetected even after scrubbing.

For system administrations this behavior is non-intuitive and in
a worst case scenario could result in the only good copy of the
data being unknowingly detached from the mirror.

This change resolves the issue by reading all replacing/sparing
mirror children when scrubbing.  When the BP isn't available for
verification, then compare the data buffers from each child.  They
must all be identical, if not there's silent damage and an error
is returned to prompt the top-level vdev to issue a repair I/O to
rewrite the data on all of the mirror children.  Since we can't
tell which child was wrong a checksum error is logged against the
replacing or sparing mirror vdev.

Reviewed-by: Mark Maybee <mark.maybee@delphix.com>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #13555
2022-06-23 10:36:28 -07:00

441 lines
17 KiB
Python
Executable File

#!/usr/bin/env @PYTHON_SHEBANG@
#
# 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) 2017 by Delphix. All rights reserved.
# Copyright (c) 2018 by Lawrence Livermore National Security, LLC.
#
# This script must remain compatible with Python 3.6+.
#
import os
import re
import sys
import argparse
#
# This script parses the stdout of zfstest, which has this format:
#
# Test: /path/to/testa (run as root) [00:00] [PASS]
# Test: /path/to/testb (run as jkennedy) [00:00] [PASS]
# Test: /path/to/testc (run as root) [00:00] [FAIL]
# [...many more results...]
#
# Results Summary
# FAIL 22
# SKIP 32
# PASS 1156
#
# Running Time: 02:50:31
# Percent passed: 95.5%
# Log directory: /var/tmp/test_results/20180615T205926
#
#
# Common generic reasons for a test or test group to be skipped.
#
# Some test cases are known to fail in ways which are not harmful or dangerous.
# In these cases simply mark the test as a known failure until it can be
# updated and the issue resolved. Note that it's preferable to open a unique
# issue on the GitHub issue tracker for each test case failure.
#
known_reason = 'Known issue'
#
# Some tests require that a test user be able to execute the zfs utilities.
# This may not be possible when testing in-tree due to the default permissions
# on the user's home directory. When testing this can be resolved by granting
# group read access.
#
# chmod 0750 $HOME
#
exec_reason = 'Test user execute permissions required for utilities'
#
# Some tests require a minimum python version of 3.6 and will be skipped when
# the default system version is too old. There may also be tests which require
# additional python modules be installed, for example python3-cffi is required
# by the pyzfs tests.
#
python_deps_reason = 'Python modules missing: python3-cffi'
#
# Some tests require the O_TMPFILE flag which was first introduced in the
# 3.11 kernel.
#
tmpfile_reason = 'Kernel O_TMPFILE support required'
#
# Some tests require the statx(2) system call on Linux which was first
# introduced in the 4.11 kernel.
#
statx_reason = 'Kernel statx(2) system call required on Linux'
#
# Some tests require that the lsattr utility support the project id feature.
#
project_id_reason = 'lsattr with set/show project ID required'
#
# Some tests require that the kernel support user namespaces.
#
user_ns_reason = 'Kernel user namespace support required'
#
# Some rewind tests can fail since nothing guarantees that old MOS blocks
# are not overwritten. Snapshots protect datasets and data files but not
# the MOS. Reasonable efforts are made in the test case to increase the
# odds that some txgs will have their MOS data left untouched, but it is
# never a sure thing.
#
rewind_reason = 'Arbitrary pool rewind is not guaranteed'
#
# Some tests require a minimum version of the fio benchmark utility.
# Older distributions such as CentOS 6.x only provide fio-2.0.13.
#
fio_reason = 'Fio v2.3 or newer required'
#
# Some tests require that the DISKS provided support the discard operation.
# Normally this is not an issue because loop back devices are used for DISKS
# and they support discard (TRIM/UNMAP).
#
trim_reason = 'DISKS must support discard (TRIM/UNMAP)'
#
# Some tests on FreeBSD require the fspacectl(2) system call and the
# truncate(1) utility supporting the -d option. The system call was first
# introduced in FreeBSD version 1400032.
#
fspacectl_reason = 'fspacectl(2) and truncate -d support required'
#
# Some tests are not applicable to a platform or need to be updated to operate
# in the manor required by the platform. Any tests which are skipped for this
# reason will be suppressed in the final analysis output.
#
na_reason = "Not applicable"
#
# Some test cases doesn't have all requirements to run on Github actions CI.
#
ci_reason = 'CI runner doesn\'t have all requirements'
#
# These tests are known to fail, thus we use this list to prevent these
# failures from failing the job as a whole; only unexpected failures
# bubble up to cause this script to exit with a non-zero exit status.
#
# Format: { 'test-name': ['expected result', 'issue-number | reason'] }
#
# For each known failure it is recommended to link to a GitHub issue by
# setting the reason to the issue number. Alternately, one of the generic
# reasons listed above can be used.
#
known = {
'casenorm/mixed_none_lookup_ci': ['FAIL', 7633],
'casenorm/mixed_formd_lookup_ci': ['FAIL', 7633],
'cli_root/zpool_import/import_rewind_device_replaced':
['FAIL', rewind_reason],
'cli_user/misc/zfs_share_001_neg': ['SKIP', na_reason],
'cli_user/misc/zfs_unshare_001_neg': ['SKIP', na_reason],
'privilege/setup': ['SKIP', na_reason],
'refreserv/refreserv_004_pos': ['FAIL', known_reason],
'rootpool/setup': ['SKIP', na_reason],
'rsend/rsend_008_pos': ['SKIP', 6066],
'vdev_zaps/vdev_zaps_007_pos': ['FAIL', known_reason],
}
if sys.platform.startswith('freebsd'):
known.update({
'cli_root/zfs_receive/receive-o-x_props_override':
['FAIL', known_reason],
'cli_root/zpool_wait/zpool_wait_trim_basic': ['SKIP', trim_reason],
'cli_root/zpool_wait/zpool_wait_trim_cancel': ['SKIP', trim_reason],
'cli_root/zpool_wait/zpool_wait_trim_flag': ['SKIP', trim_reason],
'cli_root/zfs_unshare/zfs_unshare_008_pos': ['SKIP', na_reason],
'link_count/link_count_001': ['SKIP', na_reason],
'casenorm/mixed_create_failure': ['FAIL', 13215],
'mmap/mmap_sync_001_pos': ['SKIP', na_reason],
})
elif sys.platform.startswith('linux'):
known.update({
'casenorm/mixed_formd_lookup': ['FAIL', 7633],
'casenorm/mixed_formd_delete': ['FAIL', 7633],
'casenorm/sensitive_formd_lookup': ['FAIL', 7633],
'casenorm/sensitive_formd_delete': ['FAIL', 7633],
'removal/removal_with_zdb': ['SKIP', known_reason],
'cli_root/zfs_unshare/zfs_unshare_002_pos': ['SKIP', na_reason],
})
#
# These tests may occasionally fail or be skipped. We want there failures
# to be reported but only unexpected failures should bubble up to cause
# this script to exit with a non-zero exit status.
#
# Format: { 'test-name': ['expected result', 'issue-number | reason'] }
#
# For each known failure it is recommended to link to a GitHub issue by
# setting the reason to the issue number. Alternately, one of the generic
# reasons listed above can be used.
#
maybe = {
'chattr/setup': ['SKIP', exec_reason],
'crtime/crtime_001_pos': ['SKIP', statx_reason],
'cli_root/zdb/zdb_006_pos': ['FAIL', known_reason],
'cli_root/zfs_destroy/zfs_destroy_dev_removal_condense':
['FAIL', known_reason],
'cli_root/zfs_get/zfs_get_004_pos': ['FAIL', known_reason],
'cli_root/zfs_get/zfs_get_009_pos': ['SKIP', 5479],
'cli_root/zfs_rollback/zfs_rollback_001_pos': ['FAIL', known_reason],
'cli_root/zfs_rollback/zfs_rollback_002_pos': ['FAIL', known_reason],
'cli_root/zfs_snapshot/zfs_snapshot_002_neg': ['FAIL', known_reason],
'cli_root/zfs_unshare/zfs_unshare_006_pos': ['SKIP', na_reason],
'cli_root/zpool_add/zpool_add_004_pos': ['FAIL', known_reason],
'cli_root/zpool_destroy/zpool_destroy_001_pos': ['SKIP', 6145],
'cli_root/zpool_import/zpool_import_missing_003_pos': ['SKIP', 6839],
'cli_root/zpool_initialize/zpool_initialize_import_export':
['FAIL', 11948],
'cli_root/zpool_labelclear/zpool_labelclear_removed':
['FAIL', known_reason],
'cli_root/zpool_trim/setup': ['SKIP', trim_reason],
'cli_root/zpool_upgrade/zpool_upgrade_004_pos': ['FAIL', 6141],
'delegate/setup': ['SKIP', exec_reason],
'fallocate/fallocate_punch-hole': ['SKIP', fspacectl_reason],
'history/history_004_pos': ['FAIL', 7026],
'history/history_005_neg': ['FAIL', 6680],
'history/history_006_neg': ['FAIL', 5657],
'history/history_008_pos': ['FAIL', known_reason],
'history/history_010_pos': ['SKIP', exec_reason],
'io/mmap': ['SKIP', fio_reason],
'largest_pool/largest_pool_001_pos': ['FAIL', known_reason],
'mmp/mmp_on_uberblocks': ['FAIL', known_reason],
'pyzfs/pyzfs_unittest': ['SKIP', python_deps_reason],
'pool_checkpoint/checkpoint_discard_busy': ['FAIL', 11946],
'projectquota/setup': ['SKIP', exec_reason],
'removal/removal_condense_export': ['FAIL', known_reason],
'reservation/reservation_008_pos': ['FAIL', 7741],
'reservation/reservation_018_pos': ['FAIL', 5642],
'snapshot/clone_001_pos': ['FAIL', known_reason],
'snapshot/snapshot_009_pos': ['FAIL', 7961],
'snapshot/snapshot_010_pos': ['FAIL', 7961],
'snapused/snapused_004_pos': ['FAIL', 5513],
'tmpfile/setup': ['SKIP', tmpfile_reason],
'append/threadsappend_001_pos': ['FAIL', 6136],
'trim/setup': ['SKIP', trim_reason],
'upgrade/upgrade_projectquota_001_pos': ['SKIP', project_id_reason],
'user_namespace/setup': ['SKIP', user_ns_reason],
'userquota/setup': ['SKIP', exec_reason],
'zvol/zvol_ENOSPC/zvol_ENOSPC_001_pos': ['FAIL', 5848],
'pam/setup': ['SKIP', "pamtester might be not available"],
}
if sys.platform.startswith('freebsd'):
maybe.update({
'cli_root/zfs_copies/zfs_copies_002_pos': ['FAIL', known_reason],
'cli_root/zfs_inherit/zfs_inherit_001_neg': ['FAIL', known_reason],
'cli_root/zfs_share/zfs_share_concurrent_shares':
['FAIL', known_reason],
'cli_root/zpool_import/zpool_import_012_pos': ['FAIL', known_reason],
'delegate/zfs_allow_003_pos': ['FAIL', known_reason],
'inheritance/inherit_001_pos': ['FAIL', 11829],
'resilver/resilver_restart_001': ['FAIL', known_reason],
'pool_checkpoint/checkpoint_big_rewind': ['FAIL', 12622],
'pool_checkpoint/checkpoint_indirect': ['FAIL', 12623],
})
elif sys.platform.startswith('linux'):
maybe.update({
'cli_root/zfs_rename/zfs_rename_002_pos': ['FAIL', known_reason],
'cli_root/zpool_reopen/zpool_reopen_003_pos': ['FAIL', known_reason],
'fault/auto_spare_shared': ['FAIL', 11889],
'fault/auto_spare_multiple': ['FAIL', 11889],
'io/io_uring': ['SKIP', 'io_uring support required'],
'limits/filesystem_limit': ['SKIP', known_reason],
'limits/snapshot_limit': ['SKIP', known_reason],
'mmp/mmp_active_import': ['FAIL', known_reason],
'mmp/mmp_exported_import': ['FAIL', known_reason],
'mmp/mmp_inactive_import': ['FAIL', known_reason],
'zvol/zvol_misc/zvol_misc_snapdev': ['FAIL', 12621],
'zvol/zvol_misc/zvol_misc_volmode': ['FAIL', known_reason],
})
# Not all Github actions runners have scsi_debug module, so we may skip
# some tests which use it.
if os.environ.get('CI') == 'true':
known.update({
'cli_root/zpool_expand/zpool_expand_001_pos': ['SKIP', ci_reason],
'cli_root/zpool_expand/zpool_expand_003_neg': ['SKIP', ci_reason],
'cli_root/zpool_expand/zpool_expand_005_pos': ['SKIP', ci_reason],
'cli_root/zpool_reopen/setup': ['SKIP', ci_reason],
'cli_root/zpool_reopen/zpool_reopen_001_pos': ['SKIP', ci_reason],
'cli_root/zpool_reopen/zpool_reopen_002_pos': ['SKIP', ci_reason],
'cli_root/zpool_reopen/zpool_reopen_003_pos': ['SKIP', ci_reason],
'cli_root/zpool_reopen/zpool_reopen_004_pos': ['SKIP', ci_reason],
'cli_root/zpool_reopen/zpool_reopen_005_pos': ['SKIP', ci_reason],
'cli_root/zpool_reopen/zpool_reopen_006_neg': ['SKIP', ci_reason],
'cli_root/zpool_reopen/zpool_reopen_007_pos': ['SKIP', ci_reason],
'cli_root/zpool_split/zpool_split_wholedisk': ['SKIP', ci_reason],
'fault/auto_offline_001_pos': ['SKIP', ci_reason],
'fault/auto_online_001_pos': ['SKIP', ci_reason],
'fault/auto_online_002_pos': ['SKIP', ci_reason],
'fault/auto_replace_001_pos': ['SKIP', ci_reason],
'fault/auto_spare_ashift': ['SKIP', ci_reason],
'fault/auto_spare_shared': ['SKIP', ci_reason],
'procfs/pool_state': ['SKIP', ci_reason],
})
maybe.update({
'events/events_002_pos': ['FAIL', 11546],
})
def process_results(pathname):
try:
f = open(pathname)
except IOError as e:
print('Error opening file:', e)
sys.exit(1)
prefix = '/zfs-tests/tests/functional/'
pattern = \
r'^Test(?:\s+\(\S+\))?:' + \
rf'\s*\S*{prefix}(\S+)' + \
r'\s*\(run as (\S+)\)\s*\[(\S+)\]\s*\[(\S+)\]'
pattern_log = r'^\s*Log directory:\s*(\S*)'
d = {}
logdir = 'Could not determine log directory.'
for line in f.readlines():
m = re.match(pattern, line)
if m and len(m.groups()) == 4:
d[m.group(1)] = m.group(4)
continue
m = re.match(pattern_log, line)
if m:
logdir = m.group(1)
return d, logdir
class ListMaybesAction(argparse.Action):
def __init__(self,
option_strings,
dest="SUPPRESS",
default="SUPPRESS",
help="list flaky tests and exit"):
super(ListMaybesAction, self).__init__(
option_strings=option_strings,
dest=dest,
default=default,
nargs=0,
help=help)
def __call__(self, parser, namespace, values, option_string=None):
for test in maybe:
print(test)
sys.exit(0)
if __name__ == "__main__":
parser = argparse.ArgumentParser(description='Analyze ZTS logs')
parser.add_argument('logfile')
parser.add_argument('--list-maybes', action=ListMaybesAction)
parser.add_argument('--no-maybes', action='store_false', dest='maybes')
args = parser.parse_args()
results, logdir = process_results(args.logfile)
if not results:
print("\n\nNo test results were found.")
print("Log directory:", logdir)
sys.exit(0)
expected = []
unexpected = []
all_maybes = True
for test in list(results.keys()):
if results[test] == "PASS":
continue
setup = test.replace(os.path.basename(test), "setup")
if results[test] == "SKIP" and test != setup:
if setup in known and known[setup][0] == "SKIP":
continue
if setup in maybe and maybe[setup][0] == "SKIP":
continue
if (test in known and results[test] in known[test][0]):
expected.append(test)
elif test in maybe and results[test] in maybe[test][0]:
if results[test] == 'SKIP' or args.maybes:
expected.append(test)
elif not args.maybes:
unexpected.append(test)
else:
unexpected.append(test)
all_maybes = False
print("\nTests with results other than PASS that are expected:")
for test in sorted(expected):
issue_url = 'https://github.com/openzfs/zfs/issues/'
# Include the reason why the result is expected, given the following:
# 1. Suppress test results which set the "Not applicable" reason.
# 2. Numerical reasons are assumed to be GitHub issue numbers.
# 3. When an entire test group is skipped only report the setup reason.
if test in known:
if known[test][1] == na_reason:
continue
elif isinstance(known[test][1], int):
expect = f"{issue_url}{known[test][1]}"
else:
expect = known[test][1]
elif test in maybe:
if isinstance(maybe[test][1], int):
expect = f"{issue_url}{maybe[test][1]}"
else:
expect = maybe[test][1]
elif setup in known and known[setup][0] == "SKIP" and setup != test:
continue
elif setup in maybe and maybe[setup][0] == "SKIP" and setup != test:
continue
else:
expect = "UNKNOWN REASON"
print(f" {results[test]} {test} ({expect})")
print("\nTests with result of PASS that are unexpected:")
for test in sorted(known.keys()):
# We probably should not be silently ignoring the case
# where "test" is not in "results".
if test not in results or results[test] != "PASS":
continue
print(f" {results[test]} {test} (expected {known[test][0]})")
print("\nTests with results other than PASS that are unexpected:")
for test in sorted(unexpected):
expect = "PASS" if test not in known else known[test][0]
print(f" {results[test]} {test} (expected {expect})")
if len(unexpected) == 0:
sys.exit(0)
elif not args.maybes and all_maybes:
sys.exit(2)
else:
sys.exit(1)