linux-kernel - Re: Circular lockdep in kvm_reset

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Message-ID: <82978ec75c0b34203dd1df693e7adf83@kernel.org>
Date:   Tue, 14 Mar 2023 09:28:25 +0000
From:   Marc Zyngier <maz@...nel.org>
To:     Cristian Marussi <cristian.marussi@....com>
Cc:     Oliver Upton <oliver.upton@...ux.dev>,
        Jeremy Linton <jeremy.linton@....com>,
        linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.linux.dev,
        linux-kernel@...r.kernel.org, David Woodhouse <dwmw@...zon.co.uk>
Subject: Re: Circular lockdep in kvm_reset_vcpu() ?

On 2023-03-13 18:20, Cristian Marussi wrote:
> On Mon, Mar 13, 2023 at 02:09:55PM +0000, Marc Zyngier wrote:

>> And -rc2 works just fine here.
> 
> Thanks, I'll dig deeper what's going on un my setup.

Actually, you really want this patch[1] which is on its
way to Linus.

It could explain the issue you're seeing with SMP.

         M.

[1] 
https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git/commit/?h=fixes&id=47053904e18282af4525a02e3e0f519f014fc7f9
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