new file mode 100755
@@ -0,0 +1,42 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (c) 2020, Oracle. All Rights Reserved.
+#
+# FS QA Test No. 761
+#
+# Make sure mkfs sets up enough of the rt geometry that we can compute the
+# correct min log size for formatting the fs.
+
+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
+
+# real QA test starts here
+_supported_fs xfs
+_require_scratch
+_require_realtime
+
+rm -f $seqres.full
+
+# Format a tiny filesystem to force minimum log size, then see if it mounts
+_scratch_mkfs -r size=1m -d size=100m > $seqres.full
+_scratch_mount >> $seqres.full
+
+# success, all done
+status=0
+exit
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@@ -0,0 +1 @@
+QA output created by 761
@@ -522,4 +522,5 @@
758 auto quick rw attr realtime
759 auto quick rw realtime
760 auto quick rw collapse punch insert zero prealloc
+761 auto quick realtime
763 auto quick rw realtime