[ndctl,8/8] ndctl: test clear poison

Commit Message

Dan Williams March 8, 2016, 11:37 p.m. UTC

Now that nfit_test arranges for poison to be injected into the middle of
pmem ranges, add the following tests:

1/ Expect errors to be present and cause I/O failures

2/ Expect writes to those sectors to clear poison

Signed-off-by: Dan Williams <[e-mail]>
---
 Makefile.am   |    3 ++-
 test/clear.sh |   67 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 69 insertions(+), 1 deletion(-)
 create mode 100755 test/clear.sh

Patch

diff --git a/Makefile.am b/Makefile.am
index c8ce3177e5a2..ce97a15c7c0d 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -141,7 +141,8 @@  pkgconfig_DATA = lib/libndctl.pc
 EXTRA_DIST += lib/libndctl.pc.in
 CLEANFILES += lib/libndctl.pc
 
-TESTS = test/libndctl test/dpa-alloc test/parent-uuid test/create.sh
+TESTS = test/libndctl test/dpa-alloc test/parent-uuid test/create.sh \
+	test/clear.sh
 check_PROGRAMS = test/libndctl test/dpa-alloc test/parent-uuid
 
 if ENABLE_DESTRUCTIVE
diff --git a/test/clear.sh b/test/clear.sh
new file mode 100755
index 000000000000..e74522201231
--- /dev/null
+++ b/test/clear.sh
@@ -0,0 +1,67 @@ 
+#!/bin/bash -x
+DEV=""
+NDCTL="./ndctl"
+BUS="-b nfit_test.0"
+BUS1="-b nfit_test.1"
+json2var="s/[{}\",]//g; s/:/=/g"
+rc=77
+
+set -e
+
+err() {
+	echo "test/clear: failed at line $1"
+	exit $rc
+}
+
+set -e
+trap 'err $LINENO' ERR
+
+# setup (reset nfit_test dimms)
+modprobe nfit_test
+$NDCTL disable-region $BUS all
+$NDCTL zero-labels $BUS all
+$NDCTL enable-region $BUS all
+
+rc=1
+
+# create pmem
+dev="x"
+json=$($NDCTL create-namespace $BUS -t pmem -m raw)
+eval $(echo $json | sed -e "$json2var")
+[ $dev = "x" ] && echo "fail: $LINENO" && exit 1
+[ $mode != "raw" ] && echo "fail: $LINENO" && exit 1
+
+# check for expected errors in the middle of the namespace
+read sector len < /sys/block/$blockdev/badblocks
+[ $((sector * 2)) -ne $((size /512)) ] && echo "fail: $LINENO" && exit 1
+if dd if=/dev/$blockdev of=/dev/null iflag=direct bs=512 skip=$sector count=$len; then
+	echo "fail: $LINENO" && exit 1
+fi
+
+size_raw=$size
+sector_raw=$sector
+
+# convert pmem to memory mode
+json=$($NDCTL create-namespace -m memory -f -e $dev)
+eval $(echo $json | sed -e "$json2var")
+[ $mode != "memory" ] && echo "fail: $LINENO" && exit 1
+
+# check for errors relative to the offset injected by the pfn device
+read sector len < /sys/block/$blockdev/badblocks
+[ $((sector_raw - sector)) -ne $(((size_raw - size) / 512)) ] && echo "fail: $LINENO" && exit 1
+
+# check that writing clears the errors
+if ! dd of=/dev/$blockdev if=/dev/zero oflag=direct bs=512 seek=$sector count=$len; then
+	echo "fail: $LINENO" && exit 1
+fi
+
+if read sector len < /sys/block/$blockdev/badblocks; then
+	# fail if reading badblocks returns data
+	echo "fail: $LINENO" && exit 1
+fi
+
+$NDCTL disable-region $BUS all
+$NDCTL disable-region $BUS1 all
+modprobe -r nfit_test
+
+exit 0