linux-kernel - Re: [LKP] [x86/hotplug] e1056a25da: WARNING:at_arch/x86/kernel/apic/apic.c:#setup_local

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Message-ID: <20190630130347.GB93752@shbuild999.sh.intel.com>
Date:   Sun, 30 Jun 2019 21:03:47 +0800
From:   Feng Tang <feng.tang@...el.com>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     "Chen, Rong A" <rong.a.chen@...el.com>,
        "tipbuild@...or.com" <tipbuild@...or.com>,
        Ingo Molnar <mingo@...nel.org>, "lkp@...org" <lkp@...org>,
        LKML <linux-kernel@...r.kernel.org>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org
Subject: Re: [LKP] [x86/hotplug] e1056a25da:
 WARNING:at_arch/x86/kernel/apic/apic.c:#setup_local_APIC

Hi Thomas,

On Sun, Jun 30, 2019 at 01:35:39PM +0200, Thomas Gleixner wrote:
> On Sat, 29 Jun 2019, Thomas Gleixner wrote:
> > On Fri, 28 Jun 2019, Thomas Gleixner wrote:
> > > On Fri, 28 Jun 2019, Feng Tang wrote:
> > > That function just 'works' by chance not by design. I'll stare into it and
> > > fix it up for real.
> > > 
> > > Thank you very much for that information. Your debug was spot on!
> > 
> > I rewrote that function so it actually handles that case correctly along
> > with some other things which were broken and force pushed the WIP.x86/ipi
> > branch.
> > 
> > Can you please run exactly that test again against that new version and
> > verify that this is fixed now?
> 
> Just found another issue with that thing. Don't waste your time on it. I'll
> come back to you when I'm done.

Ok. I noticed that the ipi branch has been merged to tip/master.

Thanks,
Feng

> 
> Thanks,
> 
> 	tglx