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

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Date:	Mon, 28 Apr 2014 13:34:17 +0200
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	Jet Chen <jet.chen@...el.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

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.

Paolo
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