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From: Michael Ellerman <mpe@ellerman.id.au>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "stable\@vger.kernel.org" <stable@vger.kernel.org>,
	"linuxppc-dev\@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
	lkml <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH backport pre-4.9] powerpc/slb: Force a full SLB flush when we insert for a bad EA
Date: Wed, 28 Jun 2017 11:40:55 +1000	[thread overview]
Message-ID: <87fuekdh3s.fsf@concordia.ellerman.id.au> (raw)
In-Reply-To: <20170627105958.GA10609@kroah.com>

Greg Kroah-Hartman <gregkh@linuxfoundation.org> writes:
> On Thu, Jun 22, 2017 at 04:52:51PM +1000, Michael Ellerman wrote:
>> The SLB miss handler calls slb_allocate_realmode() in order to create an
>> SLB entry for the faulting address. At the very start of that function
>> we check that the faulting Effective Address (EA) is less than
>> PGTABLE_RANGE (ignoring the region), ie. is it an address which could
>> possibly fit in the virtual address space.
...
>> ---
>>  arch/powerpc/mm/slb_low.S | 10 ++++++++++
>>  1 file changed, 10 insertions(+)
>> 
>> Note this patch is not upstream. The bug fix was fixed differently in
>> upstream prior to the bug being identified.
>
> Now applied to 4.4 and 3.18-stable kernels, thanks,

Thanks.

cheers

  reply	other threads:[~2017-06-28  1:41 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <87k244sed8.fsf@concordia.ellerman.id.au>
2017-06-27 10:59 ` Patch "powerpc/slb: Force a full SLB flush when we insert for a bad EA" has been added to the 3.18-stable tree gregkh
2017-06-27 10:59 ` [PATCH backport pre-4.9] powerpc/slb: Force a full SLB flush when we insert for a bad EA Greg Kroah-Hartman
2017-06-28  1:40   ` Michael Ellerman [this message]
2017-06-27 11:00 ` Patch "powerpc/slb: Force a full SLB flush when we insert for a bad EA" has been added to the 4.4-stable tree gregkh

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