From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: Re: [PATCH v3 1/7] mm: Add functions to track page directory modifications Date: Fri, 5 Jun 2020 18:01:16 -0700 Message-ID: <20200605180116.196116ea218df55f3252af57@linux-foundation.org> References: <20200515140023.25469-1-joro@8bytes.org> <20200515140023.25469-2-joro@8bytes.org> <20200605100813.GA31371@gaia> <20200605114654.GD31371@gaia> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20200605114654.GD31371@gaia> Sender: linux-acpi-owner@vger.kernel.org To: Catalin Marinas Cc: Joerg Roedel , x86@kernel.org, hpa@zytor.com, Dave Hansen , Andy Lutomirski , Peter Zijlstra , rjw@rjwysocki.net, Arnd Bergmann , Steven Rostedt , Vlastimil Babka , Michal Hocko , Matthew Wilcox , Joerg Roedel , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, Will Deacon List-Id: linux-arch.vger.kernel.org On Fri, 5 Jun 2020 12:46:55 +0100 Catalin Marinas wrote: > On Fri, Jun 05, 2020 at 11:08:13AM +0100, Catalin Marinas wrote: > > This patch causes a kernel panic on arm64 (and possibly powerpc, I > > haven't tried). arm64 still uses the 5level-fixup.h and pud_alloc() > > checks for the empty p4d with pgd_none() instead of p4d_none(). > > Ah, should have checked the list first > (https://lore.kernel.org/linux-mm/20200604074446.23944-1-joro@8bytes.org/). > Sorry about that. Can you confirm that the merge of Mike's 5level_hack zappage has fixed the arm64 wontboot? From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Fri, 5 Jun 2020 18:01:16 -0700 From: Andrew Morton Subject: Re: [PATCH v3 1/7] mm: Add functions to track page directory modifications Message-ID: <20200605180116.196116ea218df55f3252af57@linux-foundation.org> In-Reply-To: <20200605114654.GD31371@gaia> References: <20200515140023.25469-1-joro@8bytes.org> <20200515140023.25469-2-joro@8bytes.org> <20200605100813.GA31371@gaia> <20200605114654.GD31371@gaia> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: Catalin Marinas Cc: Joerg Roedel , x86@kernel.org, hpa@zytor.com, Dave Hansen , Andy Lutomirski , Peter Zijlstra , rjw@rjwysocki.net, Arnd Bergmann , Steven Rostedt , Vlastimil Babka , Michal Hocko , Matthew Wilcox , Joerg Roedel , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, Will Deacon List-ID: Message-ID: <20200606010116.ojMjua28P8WTPQxf2lhKQkz-YM5Q5BkRk-AqaVIOkBo@z> On Fri, 5 Jun 2020 12:46:55 +0100 Catalin Marinas wrote: > On Fri, Jun 05, 2020 at 11:08:13AM +0100, Catalin Marinas wrote: > > This patch causes a kernel panic on arm64 (and possibly powerpc, I > > haven't tried). arm64 still uses the 5level-fixup.h and pud_alloc() > > checks for the empty p4d with pgd_none() instead of p4d_none(). > > Ah, should have checked the list first > (https://lore.kernel.org/linux-mm/20200604074446.23944-1-joro@8bytes.org/). > Sorry about that. Can you confirm that the merge of Mike's 5level_hack zappage has fixed the arm64 wontboot?