linux-kernel - Re: [KVM] BUG: unable to handle kernel NULL pointer dereference at 00000000000002b0

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Date:	Mon, 28 Apr 2014 21:52:23 +0800
From:	Jet Chen <jet.chen@...el.com>
To:	Paolo Bonzini <pbonzini@...hat.com>
CC:	LKML <linux-kernel@...r.kernel.org>, lkp@...org,
	Fengguang Wu <fengguang.wu@...el.com>
Subject: Re: [KVM] BUG: unable to handle kernel NULL pointer dereference at
 00000000000002b0

On 04/28/2014 07:34 PM, Paolo Bonzini wrote:
> Il 28/04/2014 11:54, Jet Chen ha scritto:
>>>>>> We noticed the below kernel BUG on
>>>>>>
>>>>>> git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>>>>
>>>> What commit?
>>>>
>> This one,
>>
>> git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>>
>> commit 93c4adc7afedf9b0ec190066d45b6d67db5270da
>> Author:     Paolo Bonzini <pbonzini@...hat.com>
>> AuthorDate: Wed Mar 5 23:19:52 2014 +0100
>> Commit:     Paolo Bonzini <pbonzini@...hat.com>
>> CommitDate: Mon Mar 17 12:21:39 2014 +0100
>>
>>       KVM: x86: handle missing MPX in nested virtualization
>>
>>
>> BTW, the same issue has been reported by Fengguang last month.
>>
>> https://lkml.org/lkml/2014/3/26/200
> 
> It should have been fixed already by commit 920c83778569 (KVM: vmx: fix 
> MPX detection, 2014-03-26).  That's why I was confused, I thought it was 
> for a recent commit on Linus's master branch.

You're right, Paolo. It have been fixed already by commit 920c83778569. Sorry for this noisy duplicated report.
We found this issued commit on git://git.kernel.org/pub/scm/virt/kvm/kvm.git tree at first. When that commit entered mainline, we tested it again and I reported by mistake.

> 
> Paolo
> 
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