From: Sachin Sant <sachinp@in.ibm.com>
To: Mel Gorman <mel@csn.ul.ie>
Cc: Tejun Heo <tj@kernel.org>, Pekka Enberg <penberg@cs.helsinki.fi>,
Nick Piggin <npiggin@suse.de>,
Christoph Lameter <cl@linux-foundation.org>,
heiko.carstens@de.ibm.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: [PATCH 1/3] slqb: Do not use DEFINE_PER_CPU for per-node data
Date: Mon, 21 Sep 2009 14:32:33 +0530 [thread overview]
Message-ID: <4AB74129.90402@in.ibm.com> (raw)
In-Reply-To: <20090921084248.GC12726@csn.ul.ie>
Mel Gorman wrote:
>> I applied the three patches from Mel and one from Tejun.
>>
>
> Thanks Sachin
>
> Was there any useful result from Tejun's patch applied on its own?
>
Haven't tried with just the patch from Tejun. I will give this a try.
I might not get a chance to test this until late in the evening my time.
(Today being a holiday for me )
>> Tejun, the above hang looks exactly the same as the one
>> i have reported here :
>>
>> http://lists.ozlabs.org/pipermail/linuxppc-dev/2009-September/075791.html
>>
>> This particular hang was bisected to the following patch
>>
>> powerpc64: convert to dynamic percpu allocator
>>
>> This hang can be recreated without SLQB. So i think this is a different
>> problem.
>>
>>
>
> Was that bug ever resolved?
>
The bug was still present with git9(78f28b..). With latest git
git10(ebc79c4 ..)i haven't tested it yet because of perf counter
build errors.
Thanks
-Sachin
--
---------------------------------
Sachin Sant
IBM Linux Technology Center
India Systems and Technology Labs
Bangalore, India
---------------------------------
WARNING: multiple messages have this Message-ID (diff)
From: Sachin Sant <sachinp@in.ibm.com>
To: Mel Gorman <mel@csn.ul.ie>
Cc: Tejun Heo <tj@kernel.org>, Pekka Enberg <penberg@cs.helsinki.fi>,
Nick Piggin <npiggin@suse.de>,
Christoph Lameter <cl@linux-foundation.org>,
heiko.carstens@de.ibm.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: [PATCH 1/3] slqb: Do not use DEFINE_PER_CPU for per-node data
Date: Mon, 21 Sep 2009 14:32:33 +0530 [thread overview]
Message-ID: <4AB74129.90402@in.ibm.com> (raw)
In-Reply-To: <20090921084248.GC12726@csn.ul.ie>
Mel Gorman wrote:
>> I applied the three patches from Mel and one from Tejun.
>>
>
> Thanks Sachin
>
> Was there any useful result from Tejun's patch applied on its own?
>
Haven't tried with just the patch from Tejun. I will give this a try.
I might not get a chance to test this until late in the evening my time.
(Today being a holiday for me )
>> Tejun, the above hang looks exactly the same as the one
>> i have reported here :
>>
>> http://lists.ozlabs.org/pipermail/linuxppc-dev/2009-September/075791.html
>>
>> This particular hang was bisected to the following patch
>>
>> powerpc64: convert to dynamic percpu allocator
>>
>> This hang can be recreated without SLQB. So i think this is a different
>> problem.
>>
>>
>
> Was that bug ever resolved?
>
The bug was still present with git9(78f28b..). With latest git
git10(ebc79c4 ..)i haven't tested it yet because of perf counter
build errors.
Thanks
-Sachin
--
---------------------------------
Sachin Sant
IBM Linux Technology Center
India Systems and Technology Labs
Bangalore, India
---------------------------------
--
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next prev parent reply other threads:[~2009-09-21 9:02 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-18 19:34 [RFC PATCH 0/3] Hatchet job for SLQB on memoryless configurations Mel Gorman
2009-09-18 19:34 ` Mel Gorman
2009-09-18 19:34 ` [PATCH 1/3] slqb: Do not use DEFINE_PER_CPU for per-node data Mel Gorman
2009-09-18 19:34 ` Mel Gorman
2009-09-20 8:45 ` Pekka Enberg
2009-09-20 8:45 ` Pekka Enberg
2009-09-20 10:00 ` Tejun Heo
2009-09-20 10:00 ` Tejun Heo
2009-09-20 10:12 ` Pekka Enberg
2009-09-20 10:12 ` Pekka Enberg
2009-09-20 15:55 ` Tejun Heo
2009-09-20 15:55 ` Tejun Heo
2009-09-21 6:24 ` Pekka Enberg
2009-09-21 6:24 ` Pekka Enberg
2009-09-21 8:46 ` Mel Gorman
2009-09-21 8:46 ` Mel Gorman
2009-09-21 8:30 ` Sachin Sant
2009-09-21 8:42 ` Mel Gorman
2009-09-21 8:42 ` Mel Gorman
2009-09-21 9:00 ` Tejun Heo
2009-09-21 9:00 ` Tejun Heo
2009-09-21 9:44 ` Mel Gorman
2009-09-21 9:44 ` Mel Gorman
2009-09-21 9:53 ` Tejun Heo
2009-09-21 9:53 ` Tejun Heo
2009-09-21 10:04 ` Mel Gorman
2009-09-21 10:04 ` Mel Gorman
2009-09-21 9:02 ` Sachin Sant [this message]
2009-09-21 9:02 ` Sachin Sant
2009-09-21 9:09 ` Mel Gorman
2009-09-21 9:09 ` Mel Gorman
2009-09-21 13:04 ` Mel Gorman
2009-09-21 13:04 ` Mel Gorman
2009-09-21 13:31 ` Pekka Enberg
2009-09-21 13:31 ` Pekka Enberg
2009-09-21 13:45 ` Tejun Heo
2009-09-21 13:45 ` Tejun Heo
2009-09-21 13:57 ` Mel Gorman
2009-09-21 13:57 ` Mel Gorman
2009-09-21 23:54 ` Benjamin Herrenschmidt
2009-09-21 23:54 ` Benjamin Herrenschmidt
2009-09-20 14:04 ` Mel Gorman
2009-09-20 14:04 ` Mel Gorman
2009-09-18 19:34 ` [PATCH 2/3] slqb: Treat pages freed on a memoryless node as local node Mel Gorman
2009-09-18 19:34 ` Mel Gorman
2009-09-18 21:01 ` Christoph Lameter
2009-09-18 21:01 ` Christoph Lameter
2009-09-19 11:46 ` Mel Gorman
2009-09-19 11:46 ` Mel Gorman
2009-09-21 17:34 ` Lee Schermerhorn
2009-09-21 17:34 ` Lee Schermerhorn
2009-09-22 13:33 ` Mel Gorman
2009-09-22 13:33 ` Mel Gorman
2009-09-22 18:29 ` Lee Schermerhorn
2009-09-22 18:29 ` Lee Schermerhorn
2009-09-18 19:34 ` [PATCH 3/3] slqb: Allow SLQB to be used on PPC and S390 Mel Gorman
2009-09-18 19:34 ` Mel Gorman
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