From: Paolo Bonzini <pbonzini@redhat.com>
To: Greg KH <gregkh@linuxfoundation.org>
Cc: stable@vger.kernel.org, nikola.ciprich@linuxbox.cz,
Haozhong Zhang <haozhong.zhang@intel.com>
Subject: Re: [PATCH] KVM MMU: check pending exception before injecting APF
Date: Fri, 9 Feb 2018 18:21:13 +0100 [thread overview]
Message-ID: <577e399b-7ca8-3df0-e473-cbac9dbe122d@redhat.com> (raw)
In-Reply-To: <20180209171729.GA20345@kroah.com>
On 09/02/2018 18:17, Greg KH wrote:
> On Fri, Feb 09, 2018 at 06:00:42PM +0100, Paolo Bonzini wrote:
>> From: Haozhong Zhang <haozhong.zhang@intel.com>
>>
>> [ upstream commit 2a266f23550be997d783f27e704b9b40c4010292 Mon Sep 17 00:00:00 2001 ]
>
> Odd date :)
Oops... git's fake mbox "From" line.
>>
>> For example, when two APF's for page ready happen after one exit and
>> the first one becomes pending, the second one will result in #DF.
>> Instead, just handle the second page fault synchronously.
>>
>> Reported-by: Ross Zwisler <zwisler@gmail.com>
>> Message-ID: <CAOxpaSUBf8QoOZQ1p4KfUp0jq76OKfGY4Uxs-Gg8ngReD99xww@mail.gmail.com>
>> Reported-by: Alec Blayne <ab@tevsa.net>
>> Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
>> Fixes: 664f8e26b00c7673a8303b0d40853a0c24ca93e1
>
> So this is only needed for 4.14.y?
Yes. 4.13 and 4.15 both work.
Paolo
next prev parent reply other threads:[~2018-02-09 17:21 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-09 17:00 [PATCH] KVM MMU: check pending exception before injecting APF Paolo Bonzini
2018-02-09 17:17 ` Greg KH
2018-02-09 17:21 ` Paolo Bonzini [this message]
2018-02-09 17:44 ` Greg KH
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