[PATCH 13/13] fuzzy: create missing fuzz tests for rt rmap btrees

Darrick J. Wong
2025-02-19T01:07:02Z

From: Darrick J. Wong <djwong@kernel.org>

Back when I first created the fuzz tests for the realtime rmap btree, I
forgot a couple of things. Add tests to fuzz rtrmap btree leaf records,
and node keys.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
---
tests/xfs/1528 | 38 ++++++++++++++++++++++++++++++++++++++
tests/xfs/1528.out | 4 ++++
tests/xfs/1529 | 37 +++++++++++++++++++++++++++++++++++++
tests/xfs/1529.out | 4 ++++
tests/xfs/407 | 2 +-
5 files changed, 84 insertions(+), 1 deletion(-)
create mode 100755 tests/xfs/1528
create mode 100644 tests/xfs/1528.out
create mode 100755 tests/xfs/1529
create mode 100644 tests/xfs/1529.out

diff --git a/tests/xfs/1528 b/tests/xfs/1528
new file mode 100755
index 00000000000000..15420555ed89ac
--- /dev/null
+++ b/tests/xfs/1528
@@ -0,0 +1,38 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (c) 2022-2025 Oracle. All Rights Reserved.
+#
+# FS QA Test No. 1528
+#
+# Populate a XFS filesystem and fuzz every rtrmapbt record field.
+# Try online repair and, if necessary, offline repair,
+# to test the most likely usage pattern.
+
+. ./common/preamble
+_begin_fstest dangerous_fuzzers scrub repair fuzzers_bothrepair realtime
+
+_register_cleanup "_cleanup" BUS
+
+. ./common/filter
+. ./common/populate
+. ./common/fuzzy
+
+_require_realtime
+_require_xfs_scratch_rmapbt
+_require_scratch_xfs_fuzz_fields
+_disable_dmesg_check
+
+echo "Format and populate"
+_scratch_populate_cached nofill > $seqres.full 2>&1
+
+path="$(_scratch_xfs_find_rgbtree_height 'rmap' 2)" || \
+ _fail "could not find two-level rtrmapbt"
+inode_ver=$(_scratch_xfs_get_metadata_field "core.version" "path -m $path")
+
+echo "Fuzz rtrmapbt recs"
+_scratch_xfs_fuzz_metadata '' 'both' "path -m $path" "addr u${inode_ver}.rtrmapbt.ptrs[1]" >> $seqres.full
+echo "Done fuzzing rtrmapbt recs"
+
+# success, all done
+status=0
+exit
diff --git a/tests/xfs/1528.out b/tests/xfs/1528.out
new file mode 100644
index 00000000000000..b51b640c40a268
--- /dev/null
+++ b/tests/xfs/1528.out
@@ -0,0 +1,4 @@
+QA output created by 1528
+Format and populate
+Fuzz rtrmapbt recs
+Done fuzzing rtrmapbt recs
diff --git a/tests/xfs/1529 b/tests/xfs/1529
new file mode 100755
index 00000000000000..0a9cce43d831bc
--- /dev/null
+++ b/tests/xfs/1529
@@ -0,0 +1,37 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (c) 2022-2025 Oracle. All Rights Reserved.
+#
+# FS QA Test No. 1529
+#
+# Populate a XFS filesystem and fuzz every rtrmapbt keyptr field.
+# Try online repair and, if necessary, offline repair,
+# to test the most likely usage pattern.
+
+. ./common/preamble
+_begin_fstest dangerous_fuzzers scrub repair fuzzers_bothrepair realtime
+
+_register_cleanup "_cleanup" BUS
+
+. ./common/filter
+. ./common/populate
+. ./common/fuzzy
+
+_require_realtime
+_require_xfs_scratch_rmapbt
+_require_scratch_xfs_fuzz_fields
+_disable_dmesg_check
+
+echo "Format and populate"
+_scratch_populate_cached nofill > $seqres.full 2>&1
+
+path="$(_scratch_xfs_find_rgbtree_height 'rmap' 2)" || \
+ _fail "could not find two-level rtrmapbt"
+
+echo "Fuzz rtrmapbt keyptrs"
+_scratch_xfs_fuzz_metadata '(rtrmapbt)' 'offline' "path -m $path" >> $seqres.full
+echo "Done fuzzing rtrmapbt keyptrs"
+
+# success, all done
+status=0
+exit
diff --git a/tests/xfs/1529.out b/tests/xfs/1529.out
new file mode 100644
index 00000000000000..808fcc957f91e0
--- /dev/null
+++ b/tests/xfs/1529.out
@@ -0,0 +1,4 @@
+QA output created by 1529
+Format and populate
+Fuzz rtrmapbt keyptrs
+Done fuzzing rtrmapbt keyptrs
diff --git a/tests/xfs/407 b/tests/xfs/407
index 1eff49218a86bf..a46ecb0cd5eb93 100755
--- a/tests/xfs/407
+++ b/tests/xfs/407
@@ -24,7 +24,7 @@ _require_scratch_xfs_fuzz_fields
echo "Format and populate"
_scratch_populate_cached nofill > $seqres.full 2>&1

-path="$(_scratch_xfs_find_rgbtree_height 'rmap' 1)" || \
+path="$(_scratch_xfs_find_rgbtree_height 'rmap' 2)" || \
_fail "could not find two-level rtrmapbt"
inode_ver=$(_scratch_xfs_get_metadata_field "core.version" "path -m $path")