From: Minchan Kim <minchan@kernel.org>
To: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Cc: Bob Liu <bob.liu@oracle.com>, Lisa Du <cldu@marvell.com>,
Christoph Lameter <cl@linux.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Mel Gorman <mel@csn.ul.ie>, Bob Liu <lliubbo@gmail.com>
Subject: Re: Possible deadloop in direct reclaim?
Date: Mon, 5 Aug 2013 08:50:11 +0900 [thread overview]
Message-ID: <20130804235011.GH32486@bbox> (raw)
In-Reply-To: <51FD7483.5060504@gmail.com>
Hi KOSAKI,
On Sat, Aug 03, 2013 at 05:22:11PM -0400, KOSAKI Motohiro wrote:
> (8/1/13 12:21 AM), Bob Liu wrote:
> >Hi KOSAKI,
> >
> >On 08/01/2013 10:45 AM, KOSAKI Motohiro wrote:
> >
> >>
> >>Please read more older code. Your pointed code is temporary change and I
> >>changed back for fixing
> >>bugs.
> >>If you look at the status in middle direct reclaim, we can't avoid race
> >>condition from multi direct
> >>reclaim issues. Moreover, if kswapd doesn't awaken, it is a problem.
> >>This is a reason why current code
> >>behave as you described.
> >>I agree we should fix your issue as far as possible. But I can't agree
> >>your analysis.
> >>
> >
> >I found this thread:
> >mm, vmscan: fix do_try_to_free_pages() livelock
> >https://lkml.org/lkml/2012/6/14/74
> >
> >I think that's the same issue Lisa met.
> >
> >But I didn't find out why your patch didn't get merged?
> >There were already many acks.
>
> Just because I misunderstood the patch has already been merged. OK, I'll
> resend this.
Just FYI,
Now Lisa am working on it and have a plan to resend more concrete
description based on your old version.
Thanks.
--
Kind regards,
Minchan Kim
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next prev parent reply other threads:[~2013-08-04 23:49 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-23 4:58 Possible deadloop in direct reclaim? Lisa Du
2013-07-23 20:28 ` Christoph Lameter
2013-07-24 1:21 ` Lisa Du
2013-07-25 18:19 ` KOSAKI Motohiro
2013-07-26 1:11 ` Lisa Du
2013-07-29 16:44 ` KOSAKI Motohiro
2013-07-30 1:27 ` Lisa Du
2013-08-01 2:24 ` Lisa Du
2013-08-01 2:45 ` KOSAKI Motohiro
2013-08-01 4:21 ` Bob Liu
2013-08-03 21:22 ` KOSAKI Motohiro
2013-08-04 23:50 ` Minchan Kim [this message]
2013-08-01 5:19 ` Lisa Du
2013-08-01 8:56 ` Russell King - ARM Linux
2013-08-02 1:18 ` Lisa Du
2013-07-29 1:32 ` Lisa Du
2013-07-24 1:18 ` Bob Liu
2013-07-24 1:31 ` Lisa Du
2013-07-24 2:23 ` Lisa Du
2013-07-24 3:38 ` Bob Liu
2013-07-24 5:58 ` Lisa Du
2013-07-25 18:14 ` KOSAKI Motohiro
2013-07-26 1:22 ` Bob Liu
2013-07-29 16:46 ` KOSAKI Motohiro
2013-08-01 5:43 ` Minchan Kim
2013-08-01 6:13 ` Lisa Du
2013-08-01 7:33 ` Minchan Kim
2013-08-01 8:20 ` Lisa Du
2013-08-01 8:42 ` Minchan Kim
2013-08-02 1:03 ` Lisa Du
2013-08-02 2:26 ` Minchan Kim
2013-08-02 2:33 ` Minchan Kim
2013-08-02 3:17 ` Lisa Du
2013-08-02 3:53 ` Minchan Kim
2013-08-02 8:08 ` Lisa Du
2013-08-04 23:47 ` Minchan Kim
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