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81586652bb
Add one simple fault inject target, and verify if an application using ublk device sees an I/O error quickly after the ublk server dies. Signed-off-by: Uday Shankar <ushankar@purestorage.com> Signed-off-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20250416035444.99569-9-ming.lei@redhat.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
42 lines
1.0 KiB
Bash
Executable File
42 lines
1.0 KiB
Bash
Executable File
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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. "$(cd "$(dirname "$0")" && pwd)"/test_common.sh
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TID="generic_06"
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ERR_CODE=0
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_prep_test "fault_inject" "fast cleanup when all I/Os of one hctx are in server"
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# configure ublk server to sleep 2s before completing each I/O
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dev_id=$(_add_ublk_dev -t fault_inject -q 2 -d 1 --delay_us 2000000)
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_check_add_dev $TID $?
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STARTTIME=${SECONDS}
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dd if=/dev/urandom of=/dev/ublkb${dev_id} oflag=direct bs=4k count=1 status=none > /dev/null 2>&1 &
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dd_pid=$!
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__ublk_kill_daemon ${dev_id} "DEAD"
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wait $dd_pid
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dd_exitcode=$?
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ENDTIME=${SECONDS}
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ELAPSED=$(($ENDTIME - $STARTTIME))
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# assert that dd sees an error and exits quickly after ublk server is
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# killed. previously this relied on seeing an I/O timeout and so would
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# take ~30s
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if [ $dd_exitcode -eq 0 ]; then
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echo "dd unexpectedly exited successfully!"
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ERR_CODE=255
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fi
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if [ $ELAPSED -ge 5 ]; then
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echo "dd took $ELAPSED seconds to exit (>= 5s tolerance)!"
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ERR_CODE=255
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fi
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_cleanup_test "fault_inject"
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_show_result $TID $ERR_CODE
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