linux-kernel - Re: query for idea about a kexec regression

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Message-ID: <20131027044433.GB18689@dhcp-16-126.nay.redhat.com>
Date:	Sun, 27 Oct 2013 12:44:33 +0800
From:	Dave Young <dyoung@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	kexec@...ts.infradead.org, x86@...nel.org
Subject: Re: query for idea about a kexec regression

typo: mail address of x86@...nel.org

On 10/27/13 at 12:30pm, Dave Young wrote:
> Hi
> 
> While I testing efi runtime patches for kexec kernel, there's
> 2 machines kexec fails on them. It can be reproduced with
> non-efi kernel, so it's not related to the patchset.
> 
> Problem is kexec kernel will immediatly reboot after below
> kernel message:
> smpboot: Booting Node   0, Processors  #   1
> 
> The latter CPUs were not printed.
> 
> nr_cpus=1 works, so there might be some bug on smp code.
> 
> Any idea or suspection acout some patches? This is not 100%
> reproducible, to me it's about 30% thus it's hard to bisect.
> 
> Thanks
> Dave
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