linux-kernel - Re: mm: kernel BUG in page_add_new_anon

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Message-ID: <20160907163828.GA20276@node>
Date:   Wed, 7 Sep 2016 19:38:28 +0300
From:   "Kirill A. Shutemov" <kirill@...temov.name>
To:     Dmitry Vyukov <dvyukov@...gle.com>
Cc:     Andrea Arcangeli <aarcange@...hat.com>,
        Ebru Akagündüz <ebru.akagunduz@...il.com>,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Mel Gorman <mgorman@...hsingularity.net>,
        Johannes Weiner <hannes@...xchg.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Vegard Nossum <vegard.nossum@...cle.com>,
        Sasha Levin <levinsasha928@...il.com>,
        Konstantin Khlebnikov <koct9i@...il.com>,
        Andrey Ryabinin <ryabinin.a.a@...il.com>,
        Greg Thelen <gthelen@...gle.com>,
        Suleiman Souhlal <suleiman@...gle.com>,
        Hugh Dickins <hughd@...gle.com>,
        David Rientjes <rientjes@...gle.com>
Subject: Re: mm: kernel BUG in page_add_new_anon_rmap (khugepaged)

On Sat, Sep 03, 2016 at 12:11:21PM +0200, Dmitry Vyukov wrote:
> Hello,
> 
> I've got another BUG in khugepaged while running syzkaller fuzzer:
> 
> kernel BUG at mm/rmap.c:1248!

I think it caused by the same bug as the you've already reported:

http://lkml.kernel.org/r/CACT4Y+Z3gigBvhca9kRJFcjX0G70V_nRhbwKBU+yGoESBDKi9Q@mail.gmail.com

The patch in that thread should address this issue too.

-- 
 Kirill A. Shutemov