linux-kernel - Re: 5.7.0 / BUG: kernel NULL pointer dereference / setup_cpu

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Message-ID: <alpine.DEB.2.22.395.2006051519430.13291@trent.utfs.org>
Date:   Fri, 5 Jun 2020 15:21:56 -0700 (PDT)
From:   Christian Kujau <lists@...dbynature.de>
To:     Andrew Cooper <andrew.cooper3@...rix.com>
cc:     linux-kernel@...r.kernel.org, xen-devel@...ts.xenproject.org,
        Juergen Gross <jgross@...e.com>,
        Roger Pau Monné <roger.pau@...rix.com>
Subject: Re: 5.7.0 / BUG: kernel NULL pointer dereference /
 setup_cpu_watcher

On Fri, 5 Jun 2020, Andrew Cooper wrote:
> PVH domains don't have the emulated platform device, so Linux will be
> finding ~0 when it goes looking in config space.
> 
> The diagnostic should be skipped in that case, to avoid giving the false
> impression that something is wrong.

Understood, thanks for explaining that. I won't be able to edit 
arch/x86/xen/platform-pci-unplug.c to fix that though :-\

Christian.
-- 
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because of network lag due to too many people playing deathmatch