From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753603AbdF1BlJ (ORCPT ); Tue, 27 Jun 2017 21:41:09 -0400 Received: from ozlabs.org ([103.22.144.67]:37351 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753066AbdF1BlA (ORCPT ); Tue, 27 Jun 2017 21:41:00 -0400 From: Michael Ellerman To: Greg Kroah-Hartman Cc: "stable\@vger.kernel.org" , "linuxppc-dev\@lists.ozlabs.org" , lkml Subject: Re: [PATCH backport pre-4.9] powerpc/slb: Force a full SLB flush when we insert for a bad EA In-Reply-To: <20170627105958.GA10609@kroah.com> References: <87k244sed8.fsf@concordia.ellerman.id.au> <20170627105958.GA10609@kroah.com> User-Agent: Notmuch/0.21 (https://notmuchmail.org) Date: Wed, 28 Jun 2017 11:40:55 +1000 Message-ID: <87fuekdh3s.fsf@concordia.ellerman.id.au> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Greg Kroah-Hartman 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