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 Linus’s > 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
