Re: [PATCHv2 1/8] khugepaged: Add self test

[Kirill A. Shutemov]

On Mon, Apr 06, 2020 at 10:59:52AM -0400, Zi Yan wrote:
> I ran this test with all patches from this series applied to Linusâs
> tree, but still see several failures. Is it expected?

[Thanks for catching all my typos]

No. It works fine for me.
Well, occasionally, it fails to swap out a page, but nothing like you have
here.

Could you try to trace it? I used script like below after mounting
tracefs. You may want to comment out all tests but a failing one.

#!/bin/sh -efu

echo > /sys/kernel/tracing/trace
echo 1 > /sys/kernel/tracing/events/huge_memory/enable

while ./khugepaged; do
	echo > /sys/kernel/tracing/trace
done

cat /sys/kernel/tracing/trace

-- 
 Kirill A. Shutemov