From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
To: Ying Han <yinghan@google.com>
Cc: kosaki.motohiro@jp.fujitsu.com,
Minchan Kim <minchan.kim@gmail.com>,
Rik van Riel <riel@redhat.com>, Mel Gorman <mel@csn.ul.ie>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org
Subject: Re: [PATCH] Stack trace dedup
Date: Wed, 30 Mar 2011 10:51:29 +0900 (JST) [thread overview]
Message-ID: <20110330105204.E929.A69D9226@jp.fujitsu.com> (raw)
In-Reply-To: <BANLkTinDON4dV9ipZYJsxBW-bENMajw-wA@mail.gmail.com>
> On Tue, Mar 29, 2011 at 6:21 PM, KOSAKI Motohiro
> <kosaki.motohiro@jp.fujitsu.com> wrote:
> >> This doesn't build.
> >> ---
> >
> > This is slightly reticence changelog. Can you please explain a purpose
> > and benefit?
>
> Hi:
>
> Sorry about the spam. This is a patch that I was preparing to send
> upstream but not ready yet. I don't know why it got sent out ( must be
> myself did something wrong on my keyboard ) .
No problem. I have a same experience, to be honest.
> In a short, this eliminate the duplication of task stack trace in dump
> messages. The problem w/ fixed size of dmesg ring buffer limits how
> many task trace to be logged. When the duplication remains high, we
> lose important information. This patch reduces the duplication by
> dumping the first task stack trace only for contiguous duplications.
Seems reasonable.
>
> I will prepare it later with full commit description.
OK, I'm looking for it.
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next prev parent reply other threads:[~2011-03-30 1:51 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-29 17:28 Ying Han
2011-03-30 1:21 ` KOSAKI Motohiro
2011-03-30 1:32 ` Ying Han
2011-03-30 1:51 ` KOSAKI Motohiro [this message]
2011-03-30 2:32 ` Namhyung Kim
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