Test 068 is the go-to test for freeze deadlock coverage;
unfortunately it only uses fsstress, which doesn't do any mmap
IO.
Using the existing fstest binary gets us a cheap mmap exerciser
as well.
Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx>
---
I think it's fair to modify this test vs. making a new one -
it's never passed yet, and will only start passing in kernel 3.6,
so it shouldn't cause new test regressions to add mmap ops.
And I can verify that this finds mmap bugs; I had a backport
which messed up ext4's freeze vs. mmap handling, and this exposes
it. :)
diff --git a/068 b/068
index 617420c..a0bf425 100755
--- a/068
+++ b/068
@@ -90,6 +90,21 @@ touch $tmp.running
rmdir $STRESS_DIR
} &
+# start fstest -m loop in a background block; this gets us mmap coverage
+{
+ FSTEST_DIR="$SCRATCH_MNT/fstest_test_dir"
+ mkdir "$FSTEST_DIR"
+
+ procs=2
+ while [ -f "$tmp.running" ]
+ do
+ src/fstest -m -p $FSTEST_DIR -n $procs -f 4 > /dev/null 2>&1
+ done
+
+ rm -rf $FSTEST_DIR/*
+ rmdir $FSTEST_DIR
+} &
+
i=0
let ITERATIONS=$ITERATIONS-1
_______________________________________________
xfs mailing list
xfs@xxxxxxxxxxx
http://oss.sgi.com/mailman/listinfo/xfs
