From: Scott Wood <scottwood@freescale.com>
To: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: paulus@samba.org, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH -V9 09/11] arch/powerpc: Add 64TB support
Date: Tue, 11 Sep 2012 19:58:39 -0500 [thread overview]
Message-ID: <504FDE3F.1060309@freescale.com> (raw)
In-Reply-To: <1347281577-5460-10-git-send-email-aneesh.kumar@linux.vnet.ibm.com>
On 09/10/2012 07:52 AM, Aneesh Kumar K.V wrote:
> From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
>
> Increase max addressable range to 64TB. This is not tested on
> real hardware yet.
>
> Reviewed-by: Paul Mackerras <paulus@samba.org>
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
> ---
> arch/powerpc/include/asm/mmu-hash64.h | 42 ++++++++++++++++++++------
> arch/powerpc/include/asm/pgtable-ppc64-4k.h | 2 +-
> arch/powerpc/include/asm/pgtable-ppc64-64k.h | 2 +-
> arch/powerpc/include/asm/processor.h | 4 +--
> arch/powerpc/include/asm/sparsemem.h | 4 +--
> arch/powerpc/kernel/exceptions-64s.S | 4 ++-
> arch/powerpc/mm/slb_low.S | 12 ++++++++
> 7 files changed, 54 insertions(+), 16 deletions(-)
Bisect shows this patch to be the one that causes hangs on p5020. It
gets stuck in a loop of TLB misses, bailing on a PUD entry of zero. The
page fault path runs and returns, but doesn't fix the situation, so it
repeats. AFAICT the miss handler is behaving correctly. I'll try to
see what's going on in the page fault code.
-Scott
next prev parent reply other threads:[~2012-09-12 0:59 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-10 12:52 [PATCH -V9 0/11] arch/powerpc: Add 64TB support to ppc64 Aneesh Kumar K.V
2012-09-10 12:52 ` [PATCH -V9 01/11] arch/powerpc: Replace open coded CONTEXT_BITS value Aneesh Kumar K.V
2012-09-10 12:52 ` [PATCH -V9 02/11] arch/powerpc: Use hpt_va to compute virtual address Aneesh Kumar K.V
2012-09-10 12:52 ` [PATCH -V9 03/11] arch/powerpc: Simplify hpte_decode Aneesh Kumar K.V
2012-09-10 12:52 ` [PATCH -V9 04/11] arch/powerpc: Convert virtual address to vpn Aneesh Kumar K.V
2012-09-10 12:52 ` [PATCH -V9 05/11] arch/powerpc: Make KERN_VIRT_SIZE not dependend on PGTABLE_RANGE Aneesh Kumar K.V
2012-09-10 12:52 ` [PATCH -V9 06/11] arch/powerpc: Increase the slice range to 64TB Aneesh Kumar K.V
2012-09-10 12:52 ` [PATCH -V9 07/11] arch/powerpc: Use the required number of VSID bits in slbmte Aneesh Kumar K.V
2012-09-10 12:52 ` [PATCH -V9 08/11] arch/powerpc: Use 32bit array for slb cache Aneesh Kumar K.V
2012-09-10 12:52 ` [PATCH -V9 09/11] arch/powerpc: Add 64TB support Aneesh Kumar K.V
2012-09-12 0:58 ` Scott Wood [this message]
2012-09-10 12:52 ` [PATCH -V9 10/11] arch/powerpc: Update VSID allocation documentation Aneesh Kumar K.V
2012-09-10 12:52 ` [PATCH -V9 11/11] arch/powerpc: Make some of the PGTABLE_RANGE dependency explicit Aneesh Kumar K.V
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