Messages in this thread | | | Date | Wed, 8 Apr 2020 17:21:45 +0300 | From | "Kirill A. Shutemov" <> | Subject | Re: [PATCHv2 1/8] khugepaged: Add self test |
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On Mon, Apr 06, 2020 at 02:50:32PM -0400, Zi Yan wrote: > khugepaged-58 [001] .... 9913.990380: mm_khugepaged_scan_pmd: mm=00000000283d31fc, scan_pfn=0x2ae4bd, writable=0, referenced=512, none_or_zero=0, status=no_writable_page, unmapped=0
Looks like all failures due to lack of writable ptes. That's very strange because we write to the page on fill.
You've mentioned that you run it in VM. I wounder if it can be a virtualizaiton artefact. I run tests under KVM and they are fine. What is your virtualization setup?
-- Kirill A. Shutemov
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