| #!/bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| |
| . "$(cd "$(dirname "$0")" && pwd)"/test_common.sh |
| |
| TID="generic_01" |
| ERR_CODE=0 |
| |
| if ! _have_program bpftrace; then |
| exit "$UBLK_SKIP_CODE" |
| fi |
| |
| _prep_test "null" "sequential io order" |
| |
| dev_id=$(_add_ublk_dev -t null) |
| _check_add_dev $TID $? |
| |
| dev_t=$(_get_disk_dev_t "$dev_id") |
| bpftrace trace/seq_io.bt "$dev_t" "W" 1 > "$UBLK_TMP" 2>&1 & |
| btrace_pid=$! |
| sleep 2 |
| |
| if ! kill -0 "$btrace_pid" > /dev/null 2>&1; then |
| _cleanup_test "null" |
| exit "$UBLK_SKIP_CODE" |
| fi |
| |
| # run fio over this ublk disk |
| fio --name=write_seq \ |
| --filename=/dev/ublkb"${dev_id}" \ |
| --ioengine=libaio --iodepth=16 \ |
| --rw=write \ |
| --size=512M \ |
| --direct=1 \ |
| --bs=4k > /dev/null 2>&1 |
| ERR_CODE=$? |
| kill "$btrace_pid" |
| wait |
| if grep -q "io_out_of_order" "$UBLK_TMP"; then |
| cat "$UBLK_TMP" |
| ERR_CODE=255 |
| fi |
| _cleanup_test "null" |
| _show_result $TID $ERR_CODE |
