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From: bert hubert <ahu@ds9a.nl>
To: Raj <inguva@gmail.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Delay in unmounting a USB pen drive
Date: Wed, 24 Nov 2004 11:17:06 +0100	[thread overview]
Message-ID: <20041124101706.GA7127@outpost.ds9a.nl> (raw)
In-Reply-To: <b2fa632f041124012543876b61@mail.gmail.com>

On Wed, Nov 24, 2004 at 02:55:57PM +0530, Raj wrote:
> SuSE kernel 2.6.5:
> 
> My USB pen drive has a vfat FS. When i transfer some files & try to
> unmount the drive ( umount /mnt ) , the command appears hung. CTRL+C also
> does not work. Only later did i realise that it was actually taking a
> longer time ( 10 - 15 sec )
> to unmount.

The data is only actually being written to the pen drive when you unmount.
To make unmounting fast, either mount with -o sync, or run 'sync' before
umounting.


> - Is it safe to remove the pen drive from it's slot when the umount is still in
>   progress ?? ( I tried this the first time & maybe lucky me, the
> files copied were fine )

Try reading them - you will find emtpiness.

-- 
http://www.PowerDNS.com      Open source, database driven DNS Software 
http://lartc.org           Linux Advanced Routing & Traffic Control HOWTO

      parent reply	other threads:[~2004-11-24 12:23 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-11-24  9:25 Raj
2004-11-24  9:34 ` Anton Altaparmakov
2004-11-24  9:50   ` Raj
2004-11-24  9:38 ` Colin Leroy
2004-11-24  9:52   ` Raj
2004-11-24 10:06     ` Colin Leroy
2004-11-24 10:17 ` bert hubert [this message]

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