From 81275c8bf5a4ce3f3801de7b26046aea002551dd Mon Sep 17 00:00:00 2001
From: Qu Wenruo <wqu@suse.com>
Date: Mon, 8 Oct 2018 14:52:41 +0800
Subject: [PATCH] btrfs-progs: tests: Add test image for dev extents beyond
 device boundary

Now two locations can detect such problem, either by device item
used/total bytes check, or by early dev extents check against device
boundary.

The image is hand-crafted image which uses DATA SINGLE chunk to feed
btrfs check.  As expected, as long as block group item, chunk item,
device used bytes match, older versions check can't detect such problem.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---
 .../over_dev_boundary.img.xz                  | Bin 0 -> 1640 bytes
 tests/fsck-tests/036-bad-dev-extents/test.sh  |  20 ++++++++++++++++++
 2 files changed, 20 insertions(+)
 create mode 100644 tests/fsck-tests/036-bad-dev-extents/over_dev_boundary.img.xz
 create mode 100755 tests/fsck-tests/036-bad-dev-extents/test.sh

diff --git a/tests/fsck-tests/036-bad-dev-extents/over_dev_boundary.img.xz b/tests/fsck-tests/036-bad-dev-extents/over_dev_boundary.img.xz
new file mode 100644
index 0000000000000000000000000000000000000000..47cb2a707b0097e369dc088ed0549f847995f136
GIT binary patch
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diff --git a/tests/fsck-tests/036-bad-dev-extents/test.sh b/tests/fsck-tests/036-bad-dev-extents/test.sh
new file mode 100755
index 00000000..88ea0aec
--- /dev/null
+++ b/tests/fsck-tests/036-bad-dev-extents/test.sh
@@ -0,0 +1,20 @@
+#!/bin/bash
+#
+# Due to DUP chunk allocator bugs, we could allocate DUP chunks while its dev
+# extents could exist beyond device boundary.
+# And since all related items (block group, chunk, device used bytes) are all
+# valid, btrfs check won't report any error.
+#
+# This test case contains hand crafted minimal image, to test if btrfs check
+# can detect and report such error.
+
+source "$TEST_TOP/common"
+
+check_prereq btrfs
+
+check_image() {
+	run_mustfail "btrfs check failed to detect invalid dev extents" \
+		"$TOP/btrfs" check "$1"
+}
+
+check_all_images