This test case has been in my possession for quite some time. I am upstreaming it now because it has once again detected a regression in a recent kernel release [1]. It's just stupid to connect and disconnect RNBD on localhost and expect no dmesg exceptions, with some attempts actually succeeding. Please note that currently, only RTRS over RXE is supported. [1] https://lore.kernel.org/linux-rdma/20241223025700.292536-1-lizhijian@xxxxxxxxxxx/ Signed-off-by: Li Zhijian <lizhijian@xxxxxxxxxxx> --- V2: - address comments from Shinichiro - minor fixes Copy to the RDMA/rtrs guys: Cc: Jack Wang <jinpu.wang@xxxxxxxxx> Cc: Jason Gunthorpe <jgg@xxxxxxxx> Cc: Leon Romanovsky <leon@xxxxxxxxxx> Cc: "Md. Haris Iqbal" <haris.iqbal@xxxxxxxxx> --- tests/rnbd/001 | 47 +++++++++++++++++++++++++++++++++ tests/rnbd/001.out | 2 ++ tests/rnbd/rc | 66 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 115 insertions(+) create mode 100755 tests/rnbd/001 create mode 100644 tests/rnbd/001.out create mode 100644 tests/rnbd/rc diff --git a/tests/rnbd/001 b/tests/rnbd/001 new file mode 100755 index 000000000000..ef8dff93a94a --- /dev/null +++ b/tests/rnbd/001 @@ -0,0 +1,47 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-3.0+ +# Copyright (c) 2024 FUJITSU LIMITED. All Rights Reserved. +# +# Regression test for the following patch +# RDMA/ulp: Add missing deinit() call +# +# It assists in detecting a 'list_add corruption' kernel warning by repeatedly +# connecting and disconnecting the RNBD. +# +. tests/rnbd/rc + +DESCRIPTION="Start Stop RNBD" +CHECK_DMESG=1 +QUICK=1 + +requires() { + _have_rnbd + _have_loop +} + +test_start_stop() +{ + _setup_rnbd || return + + local loop_dev i j=0 + loop_dev="$(losetup -f)" + + for ((i=0;i<100;i++)) + do + _start_rnbd_client "${loop_dev}" &>/dev/null && + _stop_rnbd_client &>/dev/null && ((j++)) + done + + # We expect at least 10% start/stop successfully + if [[ $j -lt 10 ]]; then + echo "Failed: $j/$i" + fi + + _cleanup_rnbd +} + +test() { + echo "Running ${TEST_NAME}" + test_start_stop + echo "Test complete" +} diff --git a/tests/rnbd/001.out b/tests/rnbd/001.out new file mode 100644 index 000000000000..c1f9980d0f7b --- /dev/null +++ b/tests/rnbd/001.out @@ -0,0 +1,2 @@ +Running rnbd/001 +Test complete diff --git a/tests/rnbd/rc b/tests/rnbd/rc new file mode 100644 index 000000000000..577cdbad61ef --- /dev/null +++ b/tests/rnbd/rc @@ -0,0 +1,66 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-3.0+ +# Copyright (c) 2024 FUJITSU LIMITED. All Rights Reserved. +# +# RNBD tests. + +. common/rc +. common/multipath-over-rdma + +declare RNBD_ENTRY + +_have_rnbd() { + if [[ "$USE_RXE" != 1 ]]; then + SKIP_REASONS+=("Only USE_RXE=1 is supported") + fi + _have_driver rdma_rxe + _have_driver rnbd_server + _have_driver rnbd_client +} + +_setup_rnbd() { + modprobe -q rnbd_server + modprobe -q rnbd_client + start_soft_rdma + for i in $(rdma_network_interfaces) + do + ipv4_addr=$(get_ipv4_addr "$i") + if [[ -n "${ipv4_addr}" ]]; then + def_traddr=${ipv4_addr} + fi + done +} + +_cleanup_rnbd() +{ + stop_soft_rdma +} + +_start_rnbd_client() { + local a b + local blkdev=$1 + local before after + + before=$(ls -d /sys/block/rnbd* 2>/dev/null) + if ! echo "sessname=blktest path=ip:$def_traddr device_path=$blkdev" > /sys/devices/virtual/rnbd-client/ctl/map_device; then + return 1 + fi + + # Retrieve the newly added rnbd entry + after=$(ls -d /sys/block/rnbd* 2>/dev/null) + for a in $after + do + [[ -n "$before" ]] || break + + for b in $before + do + [[ "$a" = "$b" ]] || break + done + done + + RNBD_ENTRY=$a +} + +_stop_rnbd_client() { + echo "normal" > "$RNBD_ENTRY"/rnbd/unmap_device +} -- 2.47.0
