linux-kernel - Re: [syzbot] INFO: task hung in hwrng

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Message-ID: <CACT4Y+anuf4qTHm05JiQ0ShsH__vjgoOhbB12L9VOTRsZapCtQ@mail.gmail.com>
Date:   Mon, 15 Nov 2021 11:09:28 +0100
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     syzbot <syzbot+fa0abe20d13faf06353d@...kaller.appspotmail.com>
Cc:     f.fangjian@...wei.com, herbert@...dor.apana.org.au,
        linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
        lvivier@...hat.com, mpm@...enic.com, mst@...hat.com,
        syzkaller-bugs@...glegroups.com, tangzihao1@...ilicon.com,
        yuehaibing@...wei.com, zhangshaokun@...ilicon.com
Subject: Re: [syzbot] INFO: task hung in hwrng_register

On Fri, 12 Nov 2021 at 07:16, syzbot
<syzbot+fa0abe20d13faf06353d@...kaller.appspotmail.com> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit 2bb31abdbe55742c89f4dc0cc26fcbc8467364f6
> Author: Laurent Vivier <lvivier@...hat.com>
> Date:   Thu Oct 28 10:11:09 2021 +0000
>
>     hwrng: virtio - don't wait on cleanup
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=11d4141ab00000
> start commit:   f8e6dfc64f61 Merge tag 'net-5.14-rc6' of git://git.kernel...
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=171d57d5a48c8cad
> dashboard link: https://syzkaller.appspot.com/bug?extid=fa0abe20d13faf06353d
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16cfe231300000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: hwrng: virtio - don't wait on cleanup
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection

Looks reasonable:

#syz fix: hwrng: virtio - don't wait on cleanup