linux-kernel - Re: kernel BUG at mm/swap

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Message-ID: <CABXGCsOhimxC17j=jApoty-o1roRhKYoe+oiqDZ3c1s2r3QxFw@mail.gmail.com>
Date:   Mon, 22 Jul 2019 12:56:18 +0500
From:   Mikhail Gavrilov <mikhail.v.gavrilov@...il.com>
To:     "Huang, Ying" <ying.huang@...el.com>
Cc:     huang ying <huang.ying.caritas@...il.com>,
        Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
        linux-mm@...ck.org
Subject: Re: kernel BUG at mm/swap_state.c:170!

On Mon, 22 Jul 2019 at 12:53, Huang, Ying <ying.huang@...el.com> wrote:
>
> Yes.  This is quite complex.  Is the transparent huge page enabled in
> your system?  You can check the output of
>
> $ cat /sys/kernel/mm/transparent_hugepage/enabled

always [madvise] never

> And, whether is the swap device you use a SSD or NVMe disk (not HDD)?

NVMe INTEL Optane 905P SSDPE21D480GAM3

--
Best Regards,
Mike Gavrilov.