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From: Mel Gorman <mgorman@suse.de>
To: Eric Wong <normalperson@yhbt.net>
Cc: linux-mm@kvack.org, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org, Rik van Riel <riel@redhat.com>,
	Minchan Kim <minchan@kernel.org>,
	Eric Dumazet <eric.dumazet@gmail.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: ppoll() stuck on POLLIN while TCP peer is sending
Date: Fri, 11 Jan 2013 09:30:49 +0000	[thread overview]
Message-ID: <20130111093049.GL13304@suse.de> (raw)
In-Reply-To: <20130111005105.GA15023@dcvr.yhbt.net>

On Fri, Jan 11, 2013 at 12:51:05AM +0000, Eric Wong wrote:
> Mel Gorman <mgorman@suse.de> wrote:
> > mm: compaction: Partially revert capture of suitable high-order page
> 
> <snip>
>  
> > Reported-by: Eric Wong <normalperson@yhbt.net>
> > Cc: stable@vger.kernel.org
> > Signed-off-by: Mel Gorman <mgorman@suse.de>
> 
> Thanks, my original use case and test works great after several hours!
> 
> Tested-by: Eric Wong <normalperson@yhbt.net>
> 

Thanks very much Eric. I've resent the patch to Andrew so it should make
its way to mainline. It'll fail to apply to 3.7-stable but I should get
a notification from Greg when that happens and fix it up.

> Unfortunately, I also hit a new bug in 3.8 (not in 3.7.x).  based on Eric
> Dumazet's observations, sk_stream_wait_memory may be to blame.
> Fortunately this is easier to reproduce (I've cc-ed participants
> on this thread already): <20130111004915.GA15415@dcvr.yhbt.net>

It looks like the relevant fix for this has already been written by Eric
Dumazet and picked up by David Miller.

-- 
Mel Gorman
SUSE Labs

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  reply	other threads:[~2013-01-11  9:30 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-12-28  1:45 ppoll() stuck on POLLIN while TCP peer is sending Eric Wong
2012-12-28  7:06 ` Eric Wong
2012-12-29 11:34   ` Eric Wong
2012-12-31 13:21 ` [PATCH] poll: prevent missed events if _qproc is NULL Eric Wong
2012-12-31 23:24   ` Eric Wong
2013-01-01 16:58     ` Junchang(Jason) Wang
2013-01-01 18:42   ` Eric Dumazet
2013-01-01 21:00     ` Eric Wong
2013-01-01 21:17       ` Eric Wong
2013-01-01 22:53         ` Linus Torvalds
2013-01-01 23:21           ` Junchang(Jason) Wang
2013-01-01 23:56           ` [PATCH] epoll: prevent missed events on EPOLL_CTL_MOD Eric Wong
2013-01-02 17:45             ` Eric Dumazet
2013-01-02 18:40               ` Eric Wong
2013-01-02 19:03                 ` Eric Dumazet
2013-01-02 19:32                   ` Eric Wong
2013-01-02 22:08                     ` Eric Dumazet
2013-01-02 21:16             ` Eric Wong
2013-01-02 20:08 ` ppoll() stuck on POLLIN while TCP peer is sending Eric Wong
2013-01-02 20:47   ` Eric Wong
2013-01-03 13:41     ` Eric Dumazet
2013-01-03 18:32       ` Eric Wong
2013-01-03 23:45         ` Eric Wong
2013-01-04  0:26           ` Eric Wong
2013-01-04  3:52             ` Eric Wong
2013-01-04 16:01   ` Mel Gorman
2013-01-04 17:15     ` Eric Dumazet
2013-01-04 17:59     ` Eric Wong
2013-01-05  1:07     ` Eric Wong
2013-01-06 12:07     ` Eric Wong
2013-01-07 12:25       ` Mel Gorman
2013-01-07 22:38         ` Eric Dumazet
2013-01-08  0:21           ` Eric Wong
2013-01-07 22:38         ` Eric Wong
2013-01-08 20:14           ` Eric Wong
2013-01-08 22:43           ` Mel Gorman
2013-01-08 23:23             ` Eric Wong
2013-01-09  2:14               ` Eric Dumazet
2013-01-09  2:32                 ` Eric Dumazet
2013-01-09  2:54                   ` Eric Dumazet
2013-01-09  3:55                     ` Eric Wong
2013-01-09  8:42                       ` Eric Wong
2013-01-09  8:51                         ` Eric Wong
2013-01-09 13:42                   ` Mel Gorman
2013-01-09 13:37               ` Mel Gorman
2013-01-09 13:50                 ` Mel Gorman
2013-01-10  9:25                 ` Eric Wong
2013-01-10 19:42                   ` Mel Gorman
2013-01-10 20:03                     ` Eric Wong
2013-01-10 20:58                     ` Eric Dumazet
2013-01-11  0:51                     ` Eric Wong
2013-01-11  9:30                       ` Mel Gorman [this message]
2013-01-09 21:29             ` Eric Wong

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