linux-kernel - Re: possible deadlock in process

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Message-ID: <CACT4Y+aq1-9hHzFJZedN3R-ahuxQSus5pXYxhaZbzWa-uWrFrQ@mail.gmail.com>
Date:   Tue, 5 Jan 2021 13:43:28 +0100
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     syzbot <syzbot+18a1619cceea30ed45af@...kaller.appspotmail.com>,
        LKML <linux-kernel@...r.kernel.org>,
        syzkaller-bugs <syzkaller-bugs@...glegroups.com>
Subject: Re: possible deadlock in process_measurement (2)

On Sun, Jan 3, 2021 at 12:08 AM syzbot
<syzbot+18a1619cceea30ed45af@...kaller.appspotmail.com> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit 15a8d68e9dc23dc9def4bd7e9563db60f4f86580
> Author: Wei Yang <richard.weiyang@...ux.alibaba.com>
> Date:   Tue Oct 13 23:56:33 2020 +0000
>
>     mm/hugetlb: a page from buddy is not on any list
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13612350d00000
> start commit:   1590a2e1 Merge tag 'acpi-5.8-rc3' of git://git.kernel.org/..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=bf3aec367b9ab569
> dashboard link: https://syzkaller.appspot.com/bug?extid=18a1619cceea30ed45af
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10c79dbb100000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=169bba3d100000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: mm/hugetlb: a page from buddy is not on any list
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection

#syz fix: mm/hugetlb: a page from buddy is not on any list