linux-kernel - Re: [PATCH] x86/mce: fix mce_restart() race with CPU hotplug operation

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Message-ID: <5546BE98.5030208@oracle.com>
Date:	Mon, 04 May 2015 08:34:32 +0800
From:	ethan zhao <ethan.zhao@...cle.com>
To:	Borislav Petkov <bp@...en8.de>
CC:	Ethan Zhao <ethan.kernel@...il.com>, tony.luck@...el.com,
	Thomas Gleixner <tglx@...utronix.de>, mingo@...hat.com,
	hpa@...or.com, x86@...nel.org, linux-edac@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>, tim.uglow@...cle.com
Subject: Re: [PATCH] x86/mce: fix mce_restart() race with CPU hotplug operation

Borislav,
On 2015/5/3 17:37, Borislav Petkov wrote:
> On Fri, May 01, 2015 at 02:03:48PM +0800, Ethan Zhao wrote:
>>> For the record, it is a public secret that CPU hotplug is broken. IOW,
>>> you're wasting your time with those senseless pounder tests but ok.
>>    :<,  Someone else is stressing the CPU hotplug, seems it is fragile.
>> My job is holding the system, not panic to the ground.
> Please forward my message to that someone else then. The whole world
  Got it.

  Thanks,
  Ethan
> knows CPU hotplug is fragile and there are people working on improving
> that. There's no need for you guys to pound on it, we know it is broken.
> I'm sure you can find a lot other things in the kernel to pound on.
> Things which make a lot more sense than CPU hotplug.
>
> Thanks.
>

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