From: Andrew Morton <akpm@linux-foundation.org>
To: Mike Rapoport <rppt@kernel.org>
Cc: Joerg Roedel <joro@8bytes.org>,
peterz@infradead.org, jroedel@suse.de,
Andy Lutomirski <luto@kernel.org>,
Abdul Haleem <abdhalee@linux.vnet.ibm.com>,
Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>,
Stephen Rothwell <sfr@canb.auug.org.au>,
manvanth@linux.vnet.ibm.com, linux-next@vger.kernel.org,
Steven Rostedt <rostedt@goodmis.org>,
linuxppc-dev@lists.ozlabs.org, hch@lst.de,
linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [PATCH] mm: Fix pud_alloc_track()
Date: Thu, 4 Jun 2020 13:36:22 -0700 [thread overview]
Message-ID: <20200604133622.c23b365066af0b14a9f04961@linux-foundation.org> (raw)
In-Reply-To: <20200604164814.GA7600@kernel.org>
On Thu, 4 Jun 2020 19:48:14 +0300 Mike Rapoport <rppt@kernel.org> wrote:
> On Thu, Jun 04, 2020 at 09:44:46AM +0200, Joerg Roedel wrote:
> > From: Joerg Roedel <jroedel@suse.de>
> >
> > The pud_alloc_track() needs to do different checks based on whether
> > __ARCH_HAS_5LEVEL_HACK is defined, like it already does in
> > pud_alloc(). Otherwise it causes boot failures on PowerPC.
> >
> > Provide the correct implementations for both possible settings of
> > __ARCH_HAS_5LEVEL_HACK to fix the boot problems.
>
> There is a patch in mmotm [1] that completely removes
> __ARCH_HAS_5LEVEL_HACK which is a part of the series [2] that updates
> p4d folding accross architectures. This should fix boot on PowerPC and
> the addition of pXd_alloc_track() for __ARCH_HAS_5LEVEL_HACK wouldn't be
> necessary.
>
>
> [1] https://github.com/hnaz/linux-mm/commit/cfae68792af3731ac902ea6ba5ed8df5a0f6bd2f
> [2] https://lore.kernel.org/kvmarm/20200414153455.21744-1-rppt@kernel.org/
That patchset is stacked up behind many other patches, including all
the powerpc stuff in linux-next :(
As it's a big bug fix, I'll pull those patches forward, hopefully send it
all Linuswards later today...
WARNING: multiple messages have this Message-ID (diff)
From: Andrew Morton <akpm@linux-foundation.org>
To: Mike Rapoport <rppt@kernel.org>
Cc: linux-arch@vger.kernel.org,
Stephen Rothwell <sfr@canb.auug.org.au>,
jroedel@suse.de, linux-mm@kvack.org, peterz@infradead.org,
linuxppc-dev@lists.ozlabs.org, Joerg Roedel <joro@8bytes.org>,
linux-kernel@vger.kernel.org,
Steven Rostedt <rostedt@goodmis.org>,
Abdul Haleem <abdhalee@linux.vnet.ibm.com>,
linux-next@vger.kernel.org,
Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>,
Andy Lutomirski <luto@kernel.org>,
manvanth@linux.vnet.ibm.com, hch@lst.de
Subject: Re: [PATCH] mm: Fix pud_alloc_track()
Date: Thu, 4 Jun 2020 13:36:22 -0700 [thread overview]
Message-ID: <20200604133622.c23b365066af0b14a9f04961@linux-foundation.org> (raw)
In-Reply-To: <20200604164814.GA7600@kernel.org>
On Thu, 4 Jun 2020 19:48:14 +0300 Mike Rapoport <rppt@kernel.org> wrote:
> On Thu, Jun 04, 2020 at 09:44:46AM +0200, Joerg Roedel wrote:
> > From: Joerg Roedel <jroedel@suse.de>
> >
> > The pud_alloc_track() needs to do different checks based on whether
> > __ARCH_HAS_5LEVEL_HACK is defined, like it already does in
> > pud_alloc(). Otherwise it causes boot failures on PowerPC.
> >
> > Provide the correct implementations for both possible settings of
> > __ARCH_HAS_5LEVEL_HACK to fix the boot problems.
>
> There is a patch in mmotm [1] that completely removes
> __ARCH_HAS_5LEVEL_HACK which is a part of the series [2] that updates
> p4d folding accross architectures. This should fix boot on PowerPC and
> the addition of pXd_alloc_track() for __ARCH_HAS_5LEVEL_HACK wouldn't be
> necessary.
>
>
> [1] https://github.com/hnaz/linux-mm/commit/cfae68792af3731ac902ea6ba5ed8df5a0f6bd2f
> [2] https://lore.kernel.org/kvmarm/20200414153455.21744-1-rppt@kernel.org/
That patchset is stacked up behind many other patches, including all
the powerpc stuff in linux-next :(
As it's a big bug fix, I'll pull those patches forward, hopefully send it
all Linuswards later today...
next prev parent reply other threads:[~2020-06-04 20:36 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-04 7:44 [PATCH] mm: Fix pud_alloc_track() Joerg Roedel
2020-06-04 7:44 ` Joerg Roedel
2020-06-04 16:48 ` Mike Rapoport
2020-06-04 16:48 ` Mike Rapoport
2020-06-04 16:58 ` Sedat Dilek
2020-06-04 16:58 ` Sedat Dilek
2020-06-04 16:58 ` Sedat Dilek
2020-06-04 20:36 ` Andrew Morton [this message]
2020-06-04 20:36 ` Andrew Morton
2020-06-04 18:04 ` Guenter Roeck
2020-06-04 18:04 ` Guenter Roeck
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