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From: Eric Wong <normalperson@yhbt.net>
To: Mel Gorman <mgorman@suse.de>, linux-mm@kvack.org
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	Rik van Riel <riel@redhat.com>, Minchan Kim <minchan@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: ppoll() stuck on POLLIN while TCP peer is sending
Date: Wed, 2 Jan 2013 20:47:12 +0000	[thread overview]
Message-ID: <20130102204712.GA17806@dcvr.yhbt.net> (raw)
In-Reply-To: <20130102200848.GA4500@dcvr.yhbt.net>

Eric Wong <normalperson@yhbt.net> wrote:
> [1] my full setup is very strange.
> 
>     Other than the FUSE component I forgot to mention, little depends on
>     the kernel.  With all this, the standalone toosleepy can get stuck.
>     I'll try to reproduce it with less...

I just confirmed my toosleepy processes will get stuck while just
doing "rsync -a" between local disks.  So this does not depend on
sendfile or FUSE to reproduce.

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WARNING: multiple messages have this Message-ID (diff)
From: Eric Wong <normalperson@yhbt.net>
To: Mel Gorman <mgorman@suse.de>, linux-mm@kvack.org
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	Rik van Riel <riel@redhat.com>, Minchan Kim <minchan@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: ppoll() stuck on POLLIN while TCP peer is sending
Date: Wed, 2 Jan 2013 20:47:12 +0000	[thread overview]
Message-ID: <20130102204712.GA17806@dcvr.yhbt.net> (raw)
In-Reply-To: <20130102200848.GA4500@dcvr.yhbt.net>

Eric Wong <normalperson@yhbt.net> wrote:
> [1] my full setup is very strange.
> 
>     Other than the FUSE component I forgot to mention, little depends on
>     the kernel.  With all this, the standalone toosleepy can get stuck.
>     I'll try to reproduce it with less...

I just confirmed my toosleepy processes will get stuck while just
doing "rsync -a" between local disks.  So this does not depend on
sendfile or FUSE to reproduce.

  reply	other threads:[~2013-01-02 20:47 UTC|newest]

Thread overview: 88+ 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 20:08   ` Eric Wong
2013-01-02 20:47   ` Eric Wong [this message]
2013-01-02 20:47     ` Eric Wong
2013-01-03 13:41     ` Eric Dumazet
2013-01-03 13:41       ` Eric Dumazet
2013-01-03 18:32       ` Eric Wong
2013-01-03 18:32         ` Eric Wong
2013-01-03 23:45         ` Eric Wong
2013-01-03 23:45           ` Eric Wong
2013-01-04  0:26           ` Eric Wong
2013-01-04  0:26             ` Eric Wong
2013-01-04  3:52             ` Eric Wong
2013-01-04  3:52               ` Eric Wong
2013-01-04 16:01   ` Mel Gorman
2013-01-04 16:01     ` Mel Gorman
2013-01-04 17:15     ` Eric Dumazet
2013-01-04 17:15       ` Eric Dumazet
2013-01-04 17:59     ` Eric Wong
2013-01-04 17:59       ` Eric Wong
2013-01-05  1:07     ` Eric Wong
2013-01-05  1:07       ` Eric Wong
2013-01-06 12:07     ` Eric Wong
2013-01-06 12:07       ` Eric Wong
2013-01-07 12:25       ` Mel Gorman
2013-01-07 12:25         ` Mel Gorman
2013-01-07 22:38         ` Eric Dumazet
2013-01-07 22:38           ` Eric Dumazet
2013-01-08  0:21           ` Eric Wong
2013-01-08  0:21             ` Eric Wong
2013-01-07 22:38         ` Eric Wong
2013-01-07 22:38           ` Eric Wong
2013-01-08 20:14           ` Eric Wong
2013-01-08 20:14             ` Eric Wong
2013-01-08 22:43           ` Mel Gorman
2013-01-08 22:43             ` Mel Gorman
2013-01-08 23:23             ` Eric Wong
2013-01-08 23:23               ` Eric Wong
2013-01-09  2:14               ` Eric Dumazet
2013-01-09  2:14                 ` Eric Dumazet
2013-01-09  2:32                 ` Eric Dumazet
2013-01-09  2:32                   ` Eric Dumazet
2013-01-09  2:54                   ` Eric Dumazet
2013-01-09  2:54                     ` Eric Dumazet
2013-01-09  3:55                     ` Eric Wong
2013-01-09  3:55                       ` Eric Wong
2013-01-09  8:42                       ` Eric Wong
2013-01-09  8:42                         ` Eric Wong
2013-01-09  8:51                         ` Eric Wong
2013-01-09  8:51                           ` Eric Wong
2013-01-09 13:42                   ` Mel Gorman
2013-01-09 13:42                     ` Mel Gorman
2013-01-09 13:37               ` Mel Gorman
2013-01-09 13:37                 ` Mel Gorman
2013-01-09 13:50                 ` Mel Gorman
2013-01-09 13:50                   ` Mel Gorman
2013-01-10  9:25                 ` Eric Wong
2013-01-10  9:25                   ` Eric Wong
2013-01-10 19:42                   ` Mel Gorman
2013-01-10 19:42                     ` Mel Gorman
2013-01-10 20:03                     ` Eric Wong
2013-01-10 20:03                       ` Eric Wong
2013-01-10 20:58                     ` Eric Dumazet
2013-01-10 20:58                       ` Eric Dumazet
2013-01-11  0:51                     ` Eric Wong
2013-01-11  0:51                       ` Eric Wong
2013-01-11  9:30                       ` Mel Gorman
2013-01-11  9:30                         ` Mel Gorman
2013-01-09 21:29             ` Eric Wong
2013-01-09 21:29               ` Eric Wong

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