linux-kernel - Re: possible deadlock in shmem_mfill_atomic

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Date:   Wed, 15 Apr 2020 23:58:02 -0700
From:   syzbot <syzbot+e27980339d305f2dbfd9@...kaller.appspotmail.com>
To:     akpm@...ux-foundation.org, hughd@...gle.com,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        shy828301@...il.com, syzkaller-bugs@...glegroups.com
Subject: Re: possible deadlock in shmem_mfill_atomic_pte

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger crash:

Reported-and-tested-by: syzbot+e27980339d305f2dbfd9@...kaller.appspotmail.com

Tested on:

commit:         8f9c86c9 mm: shmem: disable interrupt when acquiring info-..
git tree:       https://github.com/yang-shi/linux.git
kernel config:  https://syzkaller.appspot.com/x/.config?x=11f10cc27c63cade
dashboard link: https://syzkaller.appspot.com/bug?extid=e27980339d305f2dbfd9
compiler:       clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81)

Note: testing is done by a robot and is best-effort only.