From: Omar Sandoval <osandov@xxxxxx> This test-case performs I/O with fio while doing PCI disable/enable cycles. In the results we don't care for I/O errors but for hiccups in dmesg only. Signed-off-by: Johannes Thumshirn <jthumshirn@xxxxxxx> --- tests/block/011 | 54 +++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/block/011.out | 2 ++ 2 files changed, 56 insertions(+) create mode 100755 tests/block/011 create mode 100644 tests/block/011.out diff --git a/tests/block/011 b/tests/block/011 new file mode 100755 index 000000000000..b0de35816d48 --- /dev/null +++ b/tests/block/011 @@ -0,0 +1,54 @@ +#!/bin/bash +# +# Do disable PCI device while doing I/O to it +# +# Copyright (C) 2017 Johannes Thumshirn <jthumshirn@xxxxxxx> +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# 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. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +DESCRIPTION="disable PCI device while doing I/O" +TIMED=1 + +requires() { + _have_fio +} + +device_requires() { + _test_dev_is_pci +} + +test_device() { + echo "Running ${TEST_NAME}" + + pdev=$(_get_pci_dev_from_blkdev) + + if _test_dev_is_rotational; then + size="32m" + else + size="1g" + fi + + # start fio job + _run_fio --bs=4k --rw=randread --norandommap \ + --name=reads --filename="$TEST_DEV" --size="$size" \ + --numjobs=8 --direct=1 2>/dev/null & + + while kill -0 $! 2>/dev/null; do + echo 0 > "/sys/bus/pci/devices/${pdev}/enable" + sleep .2 + echo 1 > "/sys/bus/pci/devices/${pdev}/enable" + done + + echo "Test complete" +} diff --git a/tests/block/011.out b/tests/block/011.out new file mode 100644 index 000000000000..8e067df63097 --- /dev/null +++ b/tests/block/011.out @@ -0,0 +1,2 @@ +Running block/011 +Test complete -- 2.12.3
