linux-kernel - Re: INFO: umount blocked for more than 120 seconds

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Message-ID: <Pine.LNX.4.44L0.1004281153390.1944-100000@iolanthe.rowland.org>
Date:	Wed, 28 Apr 2010 11:54:06 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
cc:	Robert Hancock <hancockrwd@...il.com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	<linux-kernel@...r.kernel.org>, <linux-usb@...r.kernel.org>
Subject: Re: INFO: umount blocked for more than 120 seconds

On Wed, 28 Apr 2010, Sergey Senozhatsky wrote:

> On (04/27/10 15:07), Alan Stern wrote:
> > Robert was right.  Your usbmon log covers only the last 40 seconds of
> > data transfer and showed a little over 15 MB being sent, so it seems
> > likely that the entire 246 MB transfer would require more than 10
> > minutes.
> > 
> 
> Thanks.
> 
> > You can test this easily enough by simply waiting for 12 minutes or so
> > before issuing the "umount" command.
> > 
> So, bug entry is invalid. Right?

Right.  It's not a bug; it's a normal operation that happens to take a 
long time.

Alan Stern

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