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ZTS: New test for kernel panic induced by redacted send 

This change adds a new test that covers a bug fix in the binary search
in the redacted send resume logic that causes a kernel panic.
The bug was fixed in https://github.com/openzfs/zfs/pull/11297.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Co-authored-by: John Kennedy <john.kennedy@delphix.com>
Signed-off-by: Palash Gandhi <palash.gandhi@delphix.com>
Closes #11764
This commit is contained in:
Palash Gandhi 2021-03-19 22:47:50 -07:00 committed by Tony Hutter
parent 16e8e24f9c
commit 0740d41e9b
3 changed files with 47 additions and 2 deletions
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4
tests/runfiles/common.run
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@ -722,8 +722,8 @@ tests = ['redacted_compressed', 'redacted_contents', 'redacted_deleted',
'redacted_disabled_feature', 'redacted_embedded', 'redacted_holes',
'redacted_incrementals', 'redacted_largeblocks', 'redacted_many_clones',
'redacted_mixed_recsize', 'redacted_mounts', 'redacted_negative',
'redacted_origin', 'redacted_props', 'redacted_resume', 'redacted_size',
'redacted_volume']
'redacted_origin', 'redacted_panic', 'redacted_props', 'redacted_resume',
'redacted_size', 'redacted_volume']
tags = ['functional', 'redacted_send']
[tests/functional/raidz]

1
tests/zfs-tests/tests/functional/redacted_send/Makefile.am
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@ -15,6 +15,7 @@ dist_pkgdata_SCRIPTS = \
redacted_mounts.ksh \
redacted_negative.ksh \
redacted_origin.ksh \
redacted_panic.ksh \
redacted_props.ksh \
redacted_resume.ksh \
redacted_size.ksh \

44
tests/zfs-tests/tests/functional/redacted_send/redacted_panic.ksh Executable file
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@ -0,0 +1,44 @@
#!/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) 2021 by Delphix. All rights reserved.
#
. $STF_SUITE/tests/functional/redacted_send/redacted.kshlib
#
# Description:
# Verify edge case when midbufid is equal to minbufid for the bug fixed by
# https://github.com/openzfs/zfs/pull/11297 (Fix kernel panic induced by
# redacted send)
#
typeset ds_name="panic"
typeset sendfs="$POOL/$ds_name"
typeset recvfs="$POOL2/$ds_name"
typeset clone="$POOL/${ds_name}_clone"
typeset stream=$(mktemp $tmpdir/stream.XXXX)
log_onexit redacted_cleanup $sendfs $recvfs
log_must zfs create -o recsize=8k $sendfs
log_must dd if=/dev/urandom of=/$sendfs/file bs=1024k count=2048
log_must zfs snapshot $sendfs@init
log_must zfs clone $sendfs@init $clone
log_must stride_dd -i /dev/urandom -o /$clone/file -b 8192 -s 2 -c 7226
log_must zfs snapshot $clone@init
log_must zfs redact $sendfs@init book_init $clone@init
log_must eval "zfs send --redact $sendfs#book_init $sendfs@init >$stream"
log_must eval "zfs recv $recvfs <$stream"
log_pass