Regression test for the kernel fix for this crash report:
Testing ndctl-58 on our NVDIMM-Ns with the latest kernel (4.13.2)
causes a panic when configuring a pmem device from raw to sector mode.
ndctl create-namespace -f -e namespace0.0 -m sector
I was not able to reproduce this issue using ndctl-57. Below is the
stack trace from configuring a pmem device from raw to sector mode.
BUG: unable to handle kernel NULL pointer dereference at
0000000000000028
IP: holder_class_store+0x253/0x2b0 [libnvdimm]
This requires an NFIT test implementation that disables label support
for the DIMMs on the 'nfit_test.1' bus.
Cc: Vishal Verma <[email protected]>
Cc: Johannes Thumshirn <[email protected]>
Reported-by: Maurice A. Saldivar <[email protected]>
Signed-off-by: Dan Williams <[email protected]>
---
test/Makefile.am | 3 ++-
test/sector-mode.sh | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 55 insertions(+), 1 deletion(-)
create mode 100755 test/sector-mode.sh
diff --git a/test/Makefile.am b/test/Makefile.am
index ac3547e22ccb..9223628b2608 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -13,7 +13,8 @@ TESTS =\
multi-dax.sh \
btt-check.sh \
label-compat.sh \
- blk-exhaust.sh
+ blk-exhaust.sh \
+ sector-mode.sh
check_PROGRAMS =\
libndctl \
diff --git a/test/sector-mode.sh b/test/sector-mode.sh
new file mode 100755
index 000000000000..75bd3c1f82bb
--- /dev/null
+++ b/test/sector-mode.sh
@@ -0,0 +1,53 @@
+#!/bin/bash -x
+
+# Copyright(c) 2015-2017 Intel Corporation. All rights reserved.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of version 2 of the GNU General Public License as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+
+NDCTL="../ndctl/ndctl"
+BUS="-b nfit_test.0"
+BUS1="-b nfit_test.1"
+TEST=$0
+rc=77
+
+err() {
+ echo "$TEST: 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 $BUS all
+
+$NDCTL disable-region $BUS1 all
+if $NDCTL zero-labels $BUS1 all; then
+ echo "DIMMs on $BUS1 support labels, skip..."
+ $NDCTL enable-region $BUS1 all
+ false
+fi
+$NDCTL enable-region $BUS1 all
+
+rc=1
+query=". | sort_by(.size) | reverse | .[0].dev"
+NAMESPACE=$($NDCTL list $BUS1 -N | jq -r "$query")
+REGION=$($NDCTL list -R --namespace=$NAMESPACE | jq -r ".dev")
+echo 0 > /sys/bus/nd/devices/$REGION/read_only
+$NDCTL create-namespace -e $NAMESPACE -m sector -f -l 4K
+
+$NDCTL disable-region $BUS all
+$NDCTL disable-region $BUS1 all
+modprobe -r nfit_test
+
+exit 0
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