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Date: Wed, 7 Sep 2016 19:38:28 +0300
From: "Kirill A. Shutemov" <kirill@shutemov.name>
Subject: Re: mm: kernel BUG in page_add_new_anon_rmap (khugepaged)
Message-ID: <20160907163828.GA20276@node>
References: <CACT4Y+bnSJoKrYpLmHejjxMq1e43zXomAboUxjZ87_2XvrQmGw@mail.gmail.com>
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To: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>, Ebru =?iso-8859-1?B?QWthZ/xuZPx6?= <ebru.akagunduz@gmail.com>, "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>, Andrew Morton <akpm@linux-foundation.org>, Vlastimil Babka <vbabka@suse.cz>, Mel Gorman <mgorman@techsingularity.net>, Johannes Weiner <hannes@cmpxchg.org>, "linux-mm@kvack.org" <linux-mm@kvack.org>, LKML <linux-kernel@vger.kernel.org>, Vegard Nossum <vegard.nossum@oracle.com>, Sasha Levin <levinsasha928@gmail.com>, Konstantin Khlebnikov <koct9i@gmail.com>, Andrey Ryabinin <ryabinin.a.a@gmail.com>, Greg Thelen <gthelen@google.com>, Suleiman Souhlal <suleiman@google.com>, Hugh Dickins <hughd@google.com>, David Rientjes <rientjes@google.com>

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

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