linux-kernel - Re: linux-next: not-present page at swap_vma

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Message-Id: <247681FF-02C3-4FB6-BB00-720114EA1558@lca.pw>
Date:   Wed, 15 Apr 2020 09:11:47 -0400
From:   Qian Cai <cai@....pw>
To:     "Huang, Ying" <ying.huang@...el.com>
Cc:     Linux-MM <linux-mm@...ck.org>, LKML <linux-kernel@...r.kernel.org>,
        Minchan Kim <minchan@...nel.org>,
        Hugh Dickins <hughd@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: linux-next: not-present page at swap_vma_readahead()



> On Apr 15, 2020, at 4:54 AM, Huang, Ying <ying.huang@...el.com> wrote:
> 
> Qian Cai <cai@....pw> writes:
> 
>>> On Apr 14, 2020, at 10:01 PM, Huang, Ying <ying.huang@...el.com> wrote:
>>> 
>>> Is it possible to bisect this?
>> 
>> Yes, I’ll need to find a quick reproducer first by analyzing the fuzzer’s last logs.
> 
> Can you share the reproducer to me when it's available?  Or the command
> line you used to reproduce it now?

Sure, the current reproducer is running a fuzzer inside a container,

(It requires runc to be installed first.)

https://raw.githubusercontent.com/cailca/linux-mm/master/runc.sh