linux-kernel - Re: [REPORT] possible circular locking dependency when booting a VM on arm64 host

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Message-ID: <7c1bb3c1-3f64-8c24-ed59-eb3da7bf6643@huawei.com>
Date:   Thu, 9 Jul 2020 19:49:33 +0800
From:   Zenghui Yu <yuzenghui@...wei.com>
To:     Salil Mehta <salil.mehta@...wei.com>
CC:     Marc Zyngier <maz@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        "Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "Zhuangyuzeng (Yisen)" <yisen.zhuang@...wei.com>,
        "Wanghaibin (D)" <wanghaibin.wang@...wei.com>
Subject: Re: [REPORT] possible circular locking dependency when booting a VM
 on arm64 host

On 2020/7/9 18:54, Salil Mehta wrote:
> Hi Yuzenghui,
> I will try to reproduce it today at our platform. Just one question is it easily
> reproducible or is a rare occurrence?

Salil, it's 100% reproducible once you start a guest. You don't even
need to assign hostdev to the VM.


Thanks,
Zenghui