--- /dev/null
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2020 SUSE Linux Products GmbH. All Rights Reserved.
+#
+# FS QA Test 230
+#
+# Test if btrfs qgroup would crash if we're modifying the fs
+# after exceeding the limit
+#
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1 # failure is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ rm -f $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+# remove previous $seqres.full before test
+rm -f $seqres.full
+
+# real QA test starts here
+
+_supported_fs btrfs
+
+# Need at least 2GiB
+_require_scratch_size $((2 * 1024 * 1024))
+_scratch_mkfs > /dev/null 2>&1
+_scratch_mount
+
+_pwrite_byte 0xcd 0 1G $SCRATCH_MNT/file >> $seqres.full
+# Make sure the data reach disk so later qgroup scan can see it
+sync
+
+$BTRFS_UTIL_PROG quota enable $SCRATCH_MNT
+$BTRFS_UTIL_PROG quota rescan -w $SCRATCH_MNT >> $seqres.full
+
+# Set the limit to just 512MiB, which is way below the existing usage
+$BTRFS_UTIL_PROG qgroup limit 512M 0/5 $SCRATCH_MNT
+
+# Touch above file, if kernel not patched, it will trigger an ASSERT()
+#
+# Even for patched kernel, we will still get EDQUOT error, but that
+# is expected behavior.
+touch $SCRATCH_MNT/file 2>&1 | _filter_scratch
+
+# success, all done
+status=0
+exit