[ndctl PATCH 6/6] test: add interleave set compatibility test

Per the realization that Linux was incompatible with other implementations of the interleave-set-cookie algorithm [1], add a regression test to check for compatibility with the original Linux implementation. This also serves as a unit test for the new 'write-labels' command. [1]: commit 86ef58a4e35e ("nfit, libnvdimm: fix interleave set cookie calculation") Reported-by: Nicholas Moulin <nicholas.w.moulin(a)intel.com&gt; Signed-off-by: Dan Williams <dan.j.williams(a)intel.com&gt; --- test/Makefile.am | 3 ++ test/label-compat.sh | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++ test/nmem1.bin | Bin test/nmem2.bin | Bin test/nmem3.bin | Bin test/nmem4.bin | Bin 6 files changed, 63 insertions(+), 1 deletion(-) create mode 100755 test/label-compat.sh create mode 100644 test/nmem1.bin create mode 100644 test/nmem2.bin create mode 100644 test/nmem3.bin create mode 100644 test/nmem4.bin diff --git a/test/Makefile.am b/test/Makefile.am index 969fe055b35e..d2a0cf9fe2ba 100644 --- a/test/Makefile.am +++ b/test/Makefile.am @@ -9,7 +9,8 @@ TESTS =\ create.sh \ clear.sh \ dax-errors.sh \ - btt-check.sh + btt-check.sh \ + label-compat.sh check_PROGRAMS =\ libndctl \ diff --git a/test/label-compat.sh b/test/label-compat.sh new file mode 100755 index 000000000000..f103f64ae7ff --- /dev/null +++ b/test/label-compat.sh @@ -0,0 +1,61 @@ +#!/bin/bash -x +NDCTL="../ndctl/ndctl" +BUS="-b nfit_test.0" +BUS1="-b nfit_test.1" +rc=77 + +set -e + +err() { + echo "test/label-compat.sh: failed at line $1" + exit $rc +} + +check_min_kver() +{ + local ver="$1" + : "${KVER:=$(uname -r)}" + + [ -n "$ver" ] || return 1 + [[ "$ver" == "$(echo -e "$ver\n$KVER" | sort -V | head -1)" ]] +} + +check_min_kver "4.11" || { echo "kernel $KVER may not provide reliable isetcookie values"; 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 + +# grab the largest pmem region on $BUS +query=". | sort_by(.available_size) | reverse | .[0].dev" +region=$($NDCTL list $BUS -t pmem -Ri | jq -r "$query") + +# we assume that $region is comprised of 4 dimms +query=". | .regions[0].mappings | sort_by(.dimm) | .[].dimm" +dimms=$($NDCTL list -DRi -r $region | jq -r 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