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There was a bug[1] that triggered by writing non-context DAMON debugfs file names to the 'rm_contexts' DAMON debugfs file. Add a selftest for the bug to avoid it happen again. [1] https://lore.kernel.org/damon/000000000000ede3ac05ec4abf8e@google.com/ Link: https://lkml.kernel.org/r/20221107165001.5717-3-sj@kernel.org Signed-off-by: SeongJae Park <sj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
20 lines
324 B
Bash
20 lines
324 B
Bash
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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source _debugfs_common.sh
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# Test putting non-ctx files/dirs to rm_contexts file
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# ===================================================
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dmesg -C
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for file in "$DBGFS/"*
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do
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echo "$(basename "$f")" > "$DBGFS/rm_contexts"
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if dmesg | grep -q BUG
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then
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dmesg
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exit 1
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fi
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done
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