From: Scott Wood <scottwood@freescale.com>
To: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: linux-mm@kvack.org, paulus@samba.org,
linuxppc-dev@lists.ozlabs.org, dwg@au1.ibm.com
Subject: Re: [PATCH -V7 09/18] powerpc: Switch 16GB and 16MB explicit hugepages to a different page table format
Date: Tue, 11 Jun 2013 15:53:43 -0500 [thread overview]
Message-ID: <1370984023.18413.30@snotra> (raw)
In-Reply-To: <87obbgpmk3.fsf@linux.vnet.ibm.com> (from aneesh.kumar@linux.vnet.ibm.com on Sat Jun 8 11:57:48 2013)
On 06/08/2013 11:57:48 AM, Aneesh Kumar K.V wrote:
> With the config shared I am not finding anything wrong, but I can't =20
> test
> these configs. Also can you confirm what you bisect this to
>=20
> e2b3d202d1dba8f3546ed28224ce485bc50010be
> powerpc: Switch 16GB and 16MB explicit hugepages to a different page =20
> table format
>=20
> or
>=20
> cf9427b85e90bb1ff90e2397ff419691d983c68b "powerpc: New hugepage =20
> directory format"
It's e2b3d202d1dba8f3546ed28224ce485bc50010be.
It turned out to be the change from "pmd_none" to =20
"pmd_none_or_clear_bad". Making that change triggers the "bad pmd" =20
messages even when applied to v3.9 -- so we had bad pmds all along, =20
undetected. Now I get to figure out why. :-(
-Scott=
WARNING: multiple messages have this Message-ID (diff)
From: Scott Wood <scottwood@freescale.com>
To: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: linux-mm@kvack.org, paulus@samba.org,
linuxppc-dev@lists.ozlabs.org, dwg@au1.ibm.com
Subject: Re: [PATCH -V7 09/18] powerpc: Switch 16GB and 16MB explicit hugepages to a different page table format
Date: Tue, 11 Jun 2013 15:53:43 -0500 [thread overview]
Message-ID: <1370984023.18413.30@snotra> (raw)
In-Reply-To: <87obbgpmk3.fsf@linux.vnet.ibm.com> (from aneesh.kumar@linux.vnet.ibm.com on Sat Jun 8 11:57:48 2013)
On 06/08/2013 11:57:48 AM, Aneesh Kumar K.V wrote:
> With the config shared I am not finding anything wrong, but I can't
> test
> these configs. Also can you confirm what you bisect this to
>
> e2b3d202d1dba8f3546ed28224ce485bc50010be
> powerpc: Switch 16GB and 16MB explicit hugepages to a different page
> table format
>
> or
>
> cf9427b85e90bb1ff90e2397ff419691d983c68b "powerpc: New hugepage
> directory format"
It's e2b3d202d1dba8f3546ed28224ce485bc50010be.
It turned out to be the change from "pmd_none" to
"pmd_none_or_clear_bad". Making that change triggers the "bad pmd"
messages even when applied to v3.9 -- so we had bad pmds all along,
undetected. Now I get to figure out why. :-(
-Scott
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next prev parent reply other threads:[~2013-06-11 20:53 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-28 19:37 [PATCH -V7 00/18] THP support for PPC64 (Patchset 1) Aneesh Kumar K.V
2013-04-28 19:37 ` Aneesh Kumar K.V
2013-04-28 19:37 ` [PATCH -V7 01/18] mm/THP: HPAGE_SHIFT is not a #define on some arch Aneesh Kumar K.V
2013-04-28 19:37 ` Aneesh Kumar K.V
2013-04-30 2:21 ` David Gibson
2013-04-30 2:21 ` David Gibson
2013-04-30 2:24 ` David Gibson
2013-04-30 2:24 ` David Gibson
2013-04-30 3:42 ` Aneesh Kumar K.V
2013-04-30 3:42 ` Aneesh Kumar K.V
2013-04-30 5:01 ` David Gibson
2013-04-30 5:01 ` David Gibson
2013-05-03 18:51 ` Aneesh Kumar K.V
2013-05-03 18:51 ` Aneesh Kumar K.V
2013-04-28 19:37 ` [PATCH -V7 02/18] mm/THP: Add pmd args to pgtable deposit and withdraw APIs Aneesh Kumar K.V
2013-04-28 19:37 ` Aneesh Kumar K.V
2013-04-28 19:37 ` [PATCH -V7 03/18] mm/THP: withdraw the pgtable after pmdp related operations Aneesh Kumar K.V
2013-04-28 19:37 ` Aneesh Kumar K.V
2013-04-28 19:37 ` [PATCH -V7 04/18] powerpc: Use signed formatting when printing error Aneesh Kumar K.V
2013-04-28 19:37 ` Aneesh Kumar K.V
2013-04-28 19:37 ` [PATCH -V7 05/18] powerpc: Save DAR and DSISR in pt_regs on MCE Aneesh Kumar K.V
2013-04-28 19:37 ` Aneesh Kumar K.V
2013-04-28 19:37 ` [PATCH -V7 06/18] powerpc: Don't hard code the size of pte page Aneesh Kumar K.V
2013-04-28 19:37 ` Aneesh Kumar K.V
2013-04-28 19:37 ` [PATCH -V7 07/18] powerpc: Don't truncate pgd_index wrongly Aneesh Kumar K.V
2013-04-28 19:37 ` Aneesh Kumar K.V
2013-04-28 19:37 ` [PATCH -V7 08/18] powerpc: New hugepage directory format Aneesh Kumar K.V
2013-04-28 19:37 ` Aneesh Kumar K.V
2013-04-30 5:16 ` David Gibson
2013-04-30 5:16 ` David Gibson
2013-04-28 19:37 ` [PATCH -V7 09/18] powerpc: Switch 16GB and 16MB explicit hugepages to a different page table format Aneesh Kumar K.V
2013-04-28 19:37 ` Aneesh Kumar K.V
2013-04-30 5:17 ` David Gibson
2013-04-30 5:17 ` David Gibson
2013-06-06 22:42 ` Scott Wood
2013-06-06 22:42 ` Scott Wood
2013-06-07 3:55 ` Aneesh Kumar K.V
2013-06-07 3:55 ` Aneesh Kumar K.V
2013-06-07 19:17 ` Scott Wood
2013-06-07 19:17 ` Scott Wood
2013-06-08 16:57 ` Aneesh Kumar K.V
2013-06-08 16:57 ` Aneesh Kumar K.V
2013-06-11 20:53 ` Scott Wood [this message]
2013-06-11 20:53 ` Scott Wood
2013-06-11 22:50 ` Scott Wood
2013-06-11 22:50 ` Scott Wood
2013-06-12 6:30 ` Aneesh Kumar K.V
2013-06-12 6:30 ` Aneesh Kumar K.V
2013-04-28 19:37 ` [PATCH -V7 10/18] powerpc: Reduce the PTE_INDEX_SIZE Aneesh Kumar K.V
2013-04-28 19:37 ` Aneesh Kumar K.V
2013-04-28 19:37 ` [PATCH -V7 11/18] powerpc: Move the pte free routines from common header Aneesh Kumar K.V
2013-04-28 19:37 ` Aneesh Kumar K.V
2013-04-28 19:37 ` [PATCH -V7 12/18] powerpc: Reduce PTE table memory wastage Aneesh Kumar K.V
2013-04-28 19:37 ` Aneesh Kumar K.V
2013-04-28 19:37 ` [PATCH -V7 13/18] powerpc: Use encode avpn where we need only avpn values Aneesh Kumar K.V
2013-04-28 19:37 ` Aneesh Kumar K.V
2013-04-28 19:37 ` [PATCH -V7 14/18] powerpc: Decode the pte-lp-encoding bits correctly Aneesh Kumar K.V
2013-04-28 19:37 ` Aneesh Kumar K.V
2013-04-28 19:37 ` [PATCH -V7 15/18] powerpc: Fix hpte_decode to use the correct decoding for page sizes Aneesh Kumar K.V
2013-04-28 19:37 ` Aneesh Kumar K.V
2013-04-28 19:37 ` [PATCH -V7 16/18] powerpc: print both base and actual page size on hash failure Aneesh Kumar K.V
2013-04-28 19:37 ` Aneesh Kumar K.V
2013-04-28 19:37 ` [PATCH -V7 17/18] powerpc: Print page size info during boot Aneesh Kumar K.V
2013-04-28 19:37 ` Aneesh Kumar K.V
2013-04-28 19:37 ` [PATCH -V7 18/18] powerpc: Update tlbie/tlbiel as per ISA doc Aneesh Kumar K.V
2013-04-28 19:37 ` Aneesh Kumar K.V
2013-04-30 6:15 ` David Gibson
2013-04-30 6:15 ` David Gibson
2013-04-30 17:21 ` Aneesh Kumar K.V
2013-04-30 17:21 ` Aneesh Kumar K.V
2013-05-01 5:26 ` David Gibson
2013-05-01 5:26 ` David Gibson
2013-05-01 7:47 ` Aneesh Kumar K.V
2013-05-01 7:47 ` Aneesh Kumar K.V
2013-05-01 7:52 ` Simon Jeons
2013-05-01 7:52 ` Simon Jeons
2013-05-01 11:36 ` David Gibson
2013-05-01 11:36 ` David Gibson
2013-05-02 5:23 ` David Gibson
2013-05-02 5:23 ` David Gibson
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