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From: Andi Kleen <ak@suse.de>
To: David Chinner <dgc@sgi.com>
Cc: Neil Brown <neilb@suse.de>, Jens Axboe <axboe@suse.de>,
	linux-kernel@vger.kernel.org, akpm@osdl.org
Subject: Re: RFC - how to balance Dirty+Writeback in the face of slow  writeback.
Date: Mon, 21 Aug 2006 09:47:03 +0200	[thread overview]
Message-ID: <200608210947.03793.ak@suse.de> (raw)
In-Reply-To: <20060821031505.GQ51703024@melbourne.sgi.com>


> > Ouch.  
> > I suspect we are going to see more of this, as USB drive for backups
> > is probably a very attractive option for many.
> 
> I can't see how this would occur on a 2.6 kernel 

I still got the traces to prove it:
http://www.firstfloor.org/~andi/usb-loop-copy-stall-1

e.g. notice the lynx which is stuck in a m/atime update. It was stalling
for a quite long time.

> 
-Andi

  parent reply	other threads:[~2006-08-21  7:48 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-08-14 23:40 RFC - how to balance Dirty+Writeback in the face of slow writeback Neil Brown
2006-08-15  8:06 ` Andrew Morton
2006-08-15 23:00   ` David Chinner
2006-08-17  4:08     ` Neil Brown
2006-08-17  6:14       ` Andrew Morton
2006-08-17 12:36         ` Trond Myklebust
2006-08-17 15:14           ` Andrew Morton
2006-08-17 16:22             ` Trond Myklebust
2006-08-18  5:49               ` Andrew Morton
2006-08-18 10:43                 ` Nikita Danilov
2006-08-18  0:11         ` David Chinner
2006-08-18  6:29           ` Andrew Morton
2006-08-18  7:03             ` Jens Axboe
2006-08-18  7:11               ` Andrew Morton
2006-08-18 18:57               ` Andi Kleen
2006-08-21  0:35                 ` Neil Brown
2006-08-21  3:15                   ` David Chinner
2006-08-21  7:24                     ` Neil Brown
2006-08-21 13:51                       ` Jens Axboe
2006-08-25  4:36                         ` Neil Brown
2006-08-25  6:37                           ` Jens Axboe
2006-08-28  1:28                             ` David Chinner
2006-08-25 13:16                           ` Trond Myklebust
2006-08-27  8:21                             ` Neil Brown
2006-08-21 14:28                       ` David Chinner
2006-08-25  5:24                         ` Neil Brown
2006-08-28  1:55                           ` David Chinner
2006-08-21  7:47                     ` Andi Kleen [this message]
2006-08-18  7:07             ` Neil Brown
2006-08-17 22:17       ` David Chinner
2006-08-17  3:59   ` Neil Brown
2006-08-17  6:22     ` Andrew Morton
2006-08-17  8:36       ` Jens Axboe
2006-08-17 13:21     ` Trond Myklebust
2006-08-17 15:30       ` Andrew Morton
2006-08-17 16:18         ` Trond Myklebust
2006-08-18  5:34           ` Andrew Morton

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