linux-kernel - Re: [PATCH] xen/x86: Don't BUG on CPU0 offlining

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Message-ID: <30355cd9-5f86-d9d3-1fc6-ccd125eed4f0@suse.com>
Date:   Tue, 18 Jul 2017 10:00:00 +0200
From:   Juergen Gross <jgross@...e.com>
To:     Vitaly Kuznetsov <vkuznets@...hat.com>,
        xen-devel@...ts.xenproject.org
Cc:     x86@...nel.org, linux-kernel@...r.kernel.org,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>
Subject: Re: [PATCH] xen/x86: Don't BUG on CPU0 offlining

On 26/06/17 18:39, Vitaly Kuznetsov wrote:
> CONFIG_BOOTPARAM_HOTPLUG_CPU0 allows to offline CPU0 but Xen HVM guests
> BUG() in xen_teardown_timer(). Remove the BUG_ON(), this is probably a
> leftover from ancient times when CPU0 hotplug was impossible, it works
> just fine for HVM.
> 
> Signed-off-by: Vitaly Kuznetsov <vkuznets@...hat.com>

Committed to xen/tip for-linus-4.13


Thanks,

Juergen