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From: Mel Gorman <mgorman@suse.de>
To: lkp@lists.01.org
Subject: Re: [mm/meminit] PANIC: early exception 06 rip 10:ffffffff811bfa9a error 0 cr2 ffff88000fbff000
Date: Wed, 29 Apr 2015 14:41:31 +0100	[thread overview]
Message-ID: <20150429134131.GR2449@suse.de> (raw)
In-Reply-To: <20150429132817.GA10479@wfg-t540p.sh.intel.com>

[-- Attachment #1: Type: text/plain, Size: 1469 bytes --]

On Wed, Apr 29, 2015 at 09:28:17PM +0800, Fengguang Wu wrote:
> Greetings,
> 
> 0day kernel testing robot got the below dmesg and the first bad commit is
> 
> git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux-balancenuma mm-deferred-meminit-v6r1
> 
> commit 285c36ab5b3e59865a0f4d79f4c1758455e684f7
> Author:     Mel Gorman <mgorman@suse.de>
> AuthorDate: Mon Sep 29 14:54:01 2014 +0100
> Commit:     Mel Gorman <mgorman@suse.de>
> CommitDate: Wed Apr 22 19:48:15 2015 +0100
> 
>     mm: meminit: Reduce number of times pageblocks are set during struct page init
>     
>     During parallel sturct page initialisation, ranges are checked for every
>     PFN unnecessarily which increases boot times. This patch alters when the
>     ranges are checked.
>     
>     Signed-off-by: Mel Gorman <mgorman@suse.de>
> 

The series is old but I think it's still relevant. Can you try this
please?

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 9c8f2a72263d..19543f708642 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4489,8 +4489,8 @@ void __meminit memmap_init_zone(unsigned long size, int nid, unsigned long zone,
 		if (!(pfn & (pageblock_nr_pages - 1))) {
 			struct page *page = pfn_to_page(pfn);
 
-			set_pageblock_migratetype(page, MIGRATE_MOVABLE);
 			__init_single_page(page, pfn, zone, nid);
+			set_pageblock_migratetype(page, MIGRATE_MOVABLE);
 		} else {
 			__init_single_pfn(pfn, zone, nid);
 		}

WARNING: multiple messages have this Message-ID (diff)
From: Mel Gorman <mgorman@suse.de>
To: Fengguang Wu <fengguang.wu@intel.com>
Cc: LKP <lkp@01.org>, linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [mm/meminit] PANIC: early exception 06 rip 10:ffffffff811bfa9a error 0 cr2 ffff88000fbff000
Date: Wed, 29 Apr 2015 14:41:31 +0100	[thread overview]
Message-ID: <20150429134131.GR2449@suse.de> (raw)
In-Reply-To: <20150429132817.GA10479@wfg-t540p.sh.intel.com>

On Wed, Apr 29, 2015 at 09:28:17PM +0800, Fengguang Wu wrote:
> Greetings,
> 
> 0day kernel testing robot got the below dmesg and the first bad commit is
> 
> git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux-balancenuma mm-deferred-meminit-v6r1
> 
> commit 285c36ab5b3e59865a0f4d79f4c1758455e684f7
> Author:     Mel Gorman <mgorman@suse.de>
> AuthorDate: Mon Sep 29 14:54:01 2014 +0100
> Commit:     Mel Gorman <mgorman@suse.de>
> CommitDate: Wed Apr 22 19:48:15 2015 +0100
> 
>     mm: meminit: Reduce number of times pageblocks are set during struct page init
>     
>     During parallel sturct page initialisation, ranges are checked for every
>     PFN unnecessarily which increases boot times. This patch alters when the
>     ranges are checked.
>     
>     Signed-off-by: Mel Gorman <mgorman@suse.de>
> 

The series is old but I think it's still relevant. Can you try this
please?

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 9c8f2a72263d..19543f708642 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4489,8 +4489,8 @@ void __meminit memmap_init_zone(unsigned long size, int nid, unsigned long zone,
 		if (!(pfn & (pageblock_nr_pages - 1))) {
 			struct page *page = pfn_to_page(pfn);
 
-			set_pageblock_migratetype(page, MIGRATE_MOVABLE);
 			__init_single_page(page, pfn, zone, nid);
+			set_pageblock_migratetype(page, MIGRATE_MOVABLE);
 		} else {
 			__init_single_pfn(pfn, zone, nid);
 		}

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WARNING: multiple messages have this Message-ID (diff)
From: Mel Gorman <mgorman@suse.de>
To: Fengguang Wu <fengguang.wu@intel.com>
Cc: LKP <lkp@01.org>, linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [mm/meminit] PANIC: early exception 06 rip 10:ffffffff811bfa9a error 0 cr2 ffff88000fbff000
Date: Wed, 29 Apr 2015 14:41:31 +0100	[thread overview]
Message-ID: <20150429134131.GR2449@suse.de> (raw)
In-Reply-To: <20150429132817.GA10479@wfg-t540p.sh.intel.com>

On Wed, Apr 29, 2015 at 09:28:17PM +0800, Fengguang Wu wrote:
> Greetings,
> 
> 0day kernel testing robot got the below dmesg and the first bad commit is
> 
> git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux-balancenuma mm-deferred-meminit-v6r1
> 
> commit 285c36ab5b3e59865a0f4d79f4c1758455e684f7
> Author:     Mel Gorman <mgorman@suse.de>
> AuthorDate: Mon Sep 29 14:54:01 2014 +0100
> Commit:     Mel Gorman <mgorman@suse.de>
> CommitDate: Wed Apr 22 19:48:15 2015 +0100
> 
>     mm: meminit: Reduce number of times pageblocks are set during struct page init
>     
>     During parallel sturct page initialisation, ranges are checked for every
>     PFN unnecessarily which increases boot times. This patch alters when the
>     ranges are checked.
>     
>     Signed-off-by: Mel Gorman <mgorman@suse.de>
> 

The series is old but I think it's still relevant. Can you try this
please?

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 9c8f2a72263d..19543f708642 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4489,8 +4489,8 @@ void __meminit memmap_init_zone(unsigned long size, int nid, unsigned long zone,
 		if (!(pfn & (pageblock_nr_pages - 1))) {
 			struct page *page = pfn_to_page(pfn);
 
-			set_pageblock_migratetype(page, MIGRATE_MOVABLE);
 			__init_single_page(page, pfn, zone, nid);
+			set_pageblock_migratetype(page, MIGRATE_MOVABLE);
 		} else {
 			__init_single_pfn(pfn, zone, nid);
 		}

  reply	other threads:[~2015-04-29 13:41 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-29 13:28 [mm/meminit] PANIC: early exception 06 rip 10:ffffffff811bfa9a error 0 cr2 ffff88000fbff000 Fengguang Wu
2015-04-29 13:28 ` Fengguang Wu
2015-04-29 13:41 ` Mel Gorman [this message]
2015-04-29 13:41   ` Mel Gorman
2015-04-29 13:41   ` Mel Gorman
2015-05-01  0:29   ` Fengguang Wu
2015-05-01  0:29     ` Fengguang Wu
2015-05-01  0:29     ` Fengguang Wu

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