RE: [REPORT] possible circular locking dependency when booting a VM on arm64 host

From: Salil Mehta
Date: Thu Jul 09 2020 - 08:00:09 EST


> From: yuzenghui
> Sent: Thursday, July 9, 2020 12:50 PM
> To: Salil Mehta <salil.mehta@xxxxxxxxxx>
> Cc: Marc Zyngier <maz@xxxxxxxxxx>; Thomas Gleixner <tglx@xxxxxxxxxxxxx>; Linux
> Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>;
> linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; Zhuangyuzeng (Yisen)
> <yisen.zhuang@xxxxxxxxxx>; Wanghaibin (D) <wanghaibin.wang@xxxxxxxxxx>
> 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!